MTransient Transient Processor Plug in

Product Information

Specifications

• Product Name: MTransient

• Screen Modes: Easy screen, Edit screen

• Edit Mode: Allows editing of presets

• Presets: Predefined settings for quick configuration

• Left Arrow Button: Loads the previous preset

• Right Arrow Button: Loads the next preset

• Randomize Button: Loads a random preset

• Panic Button: Stops all processing and resets the plugin

• WWW Button: Opens a menu with additional information about the
  plugin

• Sleep Indicator: Indicates if the plugin is active or in sleep
  mode

• Plugin Toolbar: Provides global features and preset
  selection

• Oversampling: High-quality algorithm for up/downsampling
  audio

• Channel Mode: Processing mode for left and right channels

Product Usage Instructions

Screen Modes

The MTransient plugin has two screen modes:

• Easy screen: Provides a simplified interface
  for easy access to basic controls.

• Edit screen: Allows advanced editing of
  presets and custom configurations.

Preset Navigation

To navigate between presets, use the following buttons:

• Left Arrow Button: Pressing this button loads
  the previous preset.

• Right Arrow Button: Pressing this button loads
  the next preset.

• Randomize Button: Pressing this button loads a
  random preset.

Additional Information

The plugin provides additional information and features through
the following:

• WWW Button: Pressing this button opens a menu
  with access to updates, support, MeldaProduction web page, video
  tutorials, and social media channels.

• Sleep Indicator: Indicates whether the plugin
  is currently active or in sleep mode. The plugin can automatically
  switch off to save CPU when there is no input signal.

• Plugin Toolbar: Provides global features and
  preset selection.

Oversampling

The plugin implements a high-quality oversampling algorithm to
improve audio quality. It works by upsampling the audio material to
a higher sampling rate, processing it, and then downsampling it
back to the original sampling rate. Oversampling should only be
used if you can actually hear the difference and is most effective
for heavily distorting processors.

Channel Mode

The plugin offers different processing modes for left and right
channels. This is useful for stereo audio material to control the
stereo field. The default mode is Left+Right (L+R), which processes
the incoming signal as expected. However, the plugin also provides
additional modes for more control over the stereo image.

Note that channel mode is not relevant for mono audio tracks.
For separate processing of left and right channels, create two
instances of the plugin in series, one set to ‘L’ mode and the
other to ‘R’ mode. This allows independent configuration of each
channel.

FAQ

Q: What is the purpose of oversampling?

A: Oversampling is used to improve audio quality by reducing
aliasing and artifacts introduced during processing. However, it
should only be used if you can actually hear the difference, and it
is most effective for heavily distorting processors.

Q: How can I process left and right channels separately?

A: To process left and right channels separately, create two
instances of the plugin in series. Set one instance to ‘L’ mode and
the other to ‘R’ mode. This allows independent configuration of
each channel.

Q: How can I make the stereo image wider?

A: To create a wider stereo image, you can use modulation
effects to vary the mid signal, making the stereo signal less
correlated. This will make the audio appear wider and closer to the
listener.

MTransient
Easy screen vs. Edit screen
The plugin provides 2 user interfaces – an easy screen and an edit screen. Use the Edit button to switch between the two. By default most plugins open on the easy screen (edit button released). This screen is a simplified view of the plugin which provides just a few controls. On the left hand side of the plugin you can see the list of available devices / instruments (previously called ‘active presets’), that is, presets with controls. These controls are actually nothing more than multiparameters (single knobs that can control one or more of the plug-in’s parameters and sometimes known as Macro controls in other plug-ins) and are described in more detail later. Each device may provide different controls and usually is intended for a specific purpose. The easy screen is designed for you to be able to perform common tasks, quickly and easily, without the need to use the advanced settings (that is, those available on the Edit screen). In most cases the devices are highlighted using different text colors. In some cases the colors only mark different types of processing, but in most cases the general rule is that black/white devices are the essential ones designed for general use. Green devices are designed for a specific task or audio materials, e.g. de-essing or processing vocals in a compressor plugin. Red devices usually provide some very special processing or some extreme or creative settings. In a distortion plugin, for example, these may produce an extremely distorted output. Blue devices require an additional input, a side-chain or MIDI input usually. Without these additional inputs these Blue presets usually do not function as intended. Please check your host’s documentation about routing side-chain and MIDI into an effect plugin. To the right of the controls are the meters or time-graphs for the plugin; the standard plugin Toolbar may be to the right of these or at the bottom of the plugin. By clicking the Edit button you can switch the plugin to edit mode (edit button pushed). This mode provides all the of the features that the plugin offers. You lose no settings by toggling between edit mode and the easy screen unless you actually change something. This way you can easily check what is “under the hood” for each device, or start with an device and then tweak the plugin settings further. Devices are factory specified and cannot be modified directly by users, however you can still make your own and store them as normal presets. To do so, configure the plugin as desired, then define each multiparameter and specify its name in its settings. You can then switch to the easy screen and check the user interface that you have created. Once you are satisfied with it, save it as a normal preset while you are on the easy screen. Although your preset will not be displayed or selected in the list of available devices, the functionality will be exactly the same. For more information about multiparameters and devices please check the online video tutorials. If you are an advanced designer, you can also view both the easy and edit screens at the same time. To do that, hold Ctrl key and press the Edit button.

Edit mode
Presets
Presets button shows a window with all available presets. A preset can be loaded from the preset window by double-clicking on it, selecting via the buttons or by using your keyboard. You can also manage the directory structure, store new presets, replace existing ones etc. Presets are global, so a preset saved from one project, can easily be used in another. The arrow buttons next to the preset button can be used to switch between presets easily. Holding Ctrl while pressing the button loads a random preset. There must be some presets for this feature to work of course. Presets can be backed up by 3 different methods: A) Using “Backup” and “Restore” buttons in each preset window, which produces a single archive of all presets on the computer. B) Using “Export/Import” buttons, which export a single folder of presets for one plugin. C) By saving the actual preset files, which are found in the following directories (not recommended): Windows: C:Users{username}AppDataRoamingMeldaProduction Mac OS X: /Library/Application support/MeldaProduction Files are named based on the name of the plugin like this: “{pluginname}.presets”, so for example MAutopan.presets or MDynamics.presets. If the directory cannot be found on your computer for some reason, you can just search for the particular file. Please note that prior to version 16 a different format was used and the naming was “{pluginname}presets.xml”. The plugin also supports an online preset exchange. If the computer is connected to the internet, the plugin connects to our server once a week, submits your presets and downloads new ones if available. This feature is manually maintained in order to remove generally unusable presets, so it may take some time before any submitted presets become available. This feature relies on each user so we strongly advise that any submitted presets be named and organised in the same way as the factory presets, otherwise they will be removed.
Left arrow
Left arrow button loads the previous preset.
Right arrow
Right arrow button loads the next preset.
Randomize
Randomize button loads a random preset.
Panic
Panic button resets the plugin state. You can use it to force the plugin to report latency to the host again and to avoid any audio problems. For example, some plugins, having a look-ahead feature, report the size of the look-ahead delay as latency, but it is inconvenient to do that every time the look-ahead changes as it usually causes the playback to stop. After you tweak the latency to the correct value, just click this button to sync the track in time with the others, minimizing phasing artifacts caused by the look-ahead delay mixing with undelayed audio signals in your host. It may also be necessary to restart playback in your host. Another example is if some malfunctioning plugin generates extremely high values for the input of this plugin. A potential filter may start generating very high values as well and as a result the playback will stop. You can just click this button to reset the plugin and the playback will start again.

Settings
Settings button shows a menu with additional settings of the plugin. Here is a brief description of the separate items. Licence manager lets you activate/deactivate the plugins and manage subscriptions. While you can simply drag & drop a licence file onto the plugin, in some cases there may be a faster way. For instance, you can enter your user account name and password and the plugin will do all the activating for you. There are 4 groups of settings, each section has its own detailed help information: GUI & Style enables you to pick the GUI style for the plug-in and the main colours used for the background, the title bars of the windows and panels, the text and graphs area and the highlighting (used for enabled buttons, sliders, knobs etc). Advanced settings configures several processing options for the plug-in. Global system settings contains some settings for all MeldaProduction plugins. Once you change any of them, restart your DAW if needed, and it will affect all MeldaProduction plugins. Dry/Wet affects determines, for Multiband plug- ins, which multiband parameters are affected by the Global dry/wet control. Smart interpolation adjusts the interpolation algorithm used when changing parameter values; the higher the setting the higher the audio quality and the lower the chance of zippering noise, but more CPU will be used.
WWW
WWW button shows a menu with additional information about the plugin. You can check for updates, get easy access to support, MeldaProduction web page, video tutorials, Facebook/Twitter/YouTube channels and more.
Sleep indicator
Sleep indicator informs whether the plugin is currently active or in sleep mode. The plugin can automatically switch itself off to save CPU, when there is no input signal and the plugin knows it cannot produce any signal on its own and it generally makes sense. You can disable this in Settings / Intelligent sleep on silence both for individual instances and globally for all plugins on the system.
Plugin toolbar
Plugin toolbar provides some global features, A-H presets and more.

Oversampling
Oversampling can potentially improve sound quality by processing at a higher sample rate. Processors such as compressors, saturators, distortions etc., which employ nonlinear processing generate higher harmonics of the existing frequencies. If these frequencies exceed the Nyquist rate, which equals half of the sampling rate, they get mirrored back under the Nyquist rate. This is known as aliasing and is almost always considered an artifact. This is because the mirrored frequencies are no longer harmonic and sound as digital noise as this effect does not physically occur in nature. Oversampling reduces the problem by temporarily increasing the sampling rate. This moves the Nyquist frequency which in turn, diminishes the level of the aliased harmonics. Note that the point of oversampling is not to remove harmonics, we usually add them intentionally to make the signal richer, but to reduce or attenuate the harmonics with frequencies so high, that they just cannot be represented within the sampling rate.
To understand aliasing, try this experiment: Set the sampling rate in your host to 44100 Hz. Open MOscillator and select a “rectangle” or “full saw” waveform. These simple waveforms have lots of harmonics and without oversampling even they become highly aliased. Now select 16x oversampling and listen to the difference. If you again select 1x oversampling, you can hear that the audio signal gets extensively “dirty”. If you use an analyzer (MAnalyzer or MEqualizer for example), you will clearly see how, without oversampling, the plugin generates lots of inharmonic frequencies, some of them which are even below the fundamental frequency. Here is another, very extreme example to demonstrate the result of aliasing. Choose a “sine” shape and activate 16x oversampling. Now use a distortion or some saturation to process the signal. It is very probable that you will be able to hear (or at least see in the analyzer) the aliased frequencies.
The plugin implements a high-quality oversampling algorithm, which essentially works like this: First the audio material is upsampled to a higher sampling rate using a very complicated filter. It is then processed by the plugin. Further filtering is performed in order to remove any frequencies above the Nyquist rate to prevent aliasing from occurring, and then the audio gets downsampled to the original sampling rate.
Oversampling also has several disadvantages of which you should be aware before you start using it. Firstly, upsampled processing induces latency (at least in high-quality mode, although you can select low-quality directly in this popup), which is not very usable in real time applications. Secondly, oversampling also takes much more CPU power, due to both the processing being performed at a higher sampling rate (for 16x oversampling at 44100 Hz, this equates to 706 kHz!), and the complex filtering. Finally, and most importantly, oversampling creates some artifacts of its own and for some algorithms processing at higher sampling rates can actually lower the audio quality, or at least change the sound character. Your ears should always be the final judge.
As always, use this feature ONLY if you can actually hear the difference. It is a common misconception that oversampling is a miraculous cure all that makes your audio sound better. That is absolutely not the case. Ideally, you should work in a higher sampling rate (96kHz is almost always enough), while limiting the use of oversampling to some heavily distorting processors.
Channel mode
Channel mode button shows the current processing channel mode, e.g. Left+Right (L+R) indicates the processing of left and right channels. This is the default mode for mono and stereo audio material and effectively processes the incoming signal as expected. However the plugin also provides additional modes, of which you may take advantage as described below. Mastering this feature will give you unbelievable options for controlling the stereo field.
Note that this is not relevant for mono audio tracks, because the host supplies only one input and output channel.
Left (L) mode and Right (R) mode allow the plugin to process just one channel, only the left or only the right. This feature has a number of simple uses. Equalizing only one channel allows you to fix spectral inconsistencies, when mids are lower in one channel for example. A kind of stereo expander can be produced by equalizing each side differently. Stereo expansion could also be produced by using a modulation effect, such as a vibrato or flanger, on one of these channels. Note however that the results would not be fully mono compatible.
Left and right channels can be processed separately with different settings, by creating two instances of the plugin in series, one set to ‘L’ mode and the other to ‘R’ mode. The instance in ‘L’ mode will not touch the right channel and vice versa. This approach is perfectly safe and is even advantageous, as both sides can be configured completely independently with both settings visible next to each other.
Mid (M) mode allows the plugin to process the so-called mid (or mono) signal. Any stereo signal can be transformed from left and right, to mid and side, and back again, with minimal CPU usage and no loss of audio quality. The mid channel contains the mono sum (or centre), which is the signal present in both left and right channels (in phase). The side channel contains the difference between the left and right channels, which is the “stereo” part. In ‘M mode’ the plugin performs the conversion into mid and side channels, processes mid, leaves side intact and converts the results back into the left and right channels expected by the host.
To understand what a mid signal is, consider using a simple gain feature, available in many plugins. Setting the plugin to M mode and decreasing gain, will actually lower or attenuate the mono content and the signal will appear “wider”. There must be some stereo content present, this will not work for monophonic audio material placed in stereo tracks of course. Similarly amplifying the mono content by increasing the gain, will make the mono content dominant and the stereo image will become “narrower”.
As well as a simple gain control there are various creative uses for this channel mode. Using a compressor on the mid channel can widen the stereo image, because in louder parts the mid part gets attenuated and the stereo becomes more prominent. This is a good trick to make the listener focus on an instrument whenever it is louder, because a wider stereo image makes the listener feel that the origin of the sound is closer to, or even around them. A reverb on the mid part makes the room appear thin and distant. It is a good way to make the track wide due to the existing stereo content, yet spacey and centered at the same time. Note that since this effect does not occur naturally, the result may sound artificial on its own, however it may help you fit a dominant track into a mix. An equalizer gives many possibilities – for example, the removal of frequencies that are colliding with those on another track. By processing only the mid channel you can keep the problematic frequencies in the stereo channel. This way it is possible to actually fit

both tracks into the same part of the spectrum – one occupying the mid (centre) part of the signal, physically appearing further away from the listener, the other occupying the side part of the signal, appearing closer to the listener. Using various modulation effects can vary the mid signal, to make the stereo signal less correlated. This creates a wider stereo image and makes the audio appear closer to the listener.
Side (S) mode is complementary to M mode, and allows processing of only the side (stereo) part of the signal leaving the mid intact. The same techniques as described for M mode can also be applied here, giving the opposite results. Using a gain control with positive gain will increase the width of the stereo image. A compressor can attenuate the side part in louder sections making it more monophonic and centered, placing the origin a little further away and in front of the listener. A reverb may extend the stereo width and provide some natural space without affecting the mid content. This creates an interesting side-effect – the reverb gets completely cancelled out when played on a monophonic device (on a mono radio for example). With stereo processing you have much more space to place different sounds in the mix. However when the audio is played on a monophonic system it becomes too crowded, because what was originally in two channels is now in just one and mono has a very limited capability for 2D placement. Therefore getting rid of the reverb in mono may be advantageous, because it frees some space for other instruments. An equalizer can amplify some frequencies in the stereo content making them more apparent and since they psycho acoustically become closer to the listener, the listener will be focused on them. Conversely, frequencies can be removed to free space for other instruments in stereo. A saturator / exciter may make the stereo richer and more appealing by creating higher harmonics without affecting the mid channel, which could otherwise become crowded. Modulation effects can achieve the same results as in mid mode, but this will vary a lot depending on the effect and the audio material. It can be used in a wide variety of creative ways.
Mid+Side (M+S) lets the plugin process both mid and side channels together using the same settings. In many cases there is no difference to L+R mode, but there are exceptions. A reverb applied in M+S mode will result in minimal changes to the width of the stereo field (unless it is true-stereo, in which case mid will affect side and vice versa), it can be used therefore, to add depth without altering the width. A compressor in M+S mode can be a little harder to understand. It basically stabilizes the levels of the mid and side channels. When channel linking is disabled in the compressor, you can expect some variations in the sound field, because the compressor will attenuate the louder channel (usually the mid), changing the stereo width depending on the audio level. When channel linking is enabled, a compressor will usually react similarly to the L+R channel mode. Exciters or saturators are both nonlinear processors, their outputs depend on the level of the input, so the dominant channel (usually mid) will be saturated more. This will usually make the stereo image slightly thinner and can be used as a creative effect.
How to modify mid and side with different settings? The answer is the same as for the L and R channels. Use two instances of the plugin one after another, one in M mode, the other in S mode. The instance in M mode will not change the side channel and vice versa.
Left+Right(neg) (L+R-) mode is the same as L+R mode, but the the right channel’s phase will be inverted. This may come in handy if the L and R channels seem out of phase. When used on a normal track, it will force the channels out of phase. This may sound like an extreme stereo expansion, but is usually extremely fatiguing on the ears. It is also not mono compatible – on a mono device the track will probably become almost silent. Therefore be advised to use this only if the channels are actually out of phase or if you have some creative intent.
There are also 4 subsidiary modes: Left & zero Right (L(R0)), Right & zero Left (R(L0)), Mid & zero Side (M(S0)) and Side & zero Mid (S(M0)). Each of these processes one channel and silences the other.
Surround mode is not related to stereo processing but lets the plugin process up to 8 channels, depending on how many the host supplies. For VST2 plugins you have to first activate surround processing using the Activate surround item in the bottom. This is a global switch for all MeldaProduction plugins, which configures them to report 8in-8out capabilities to the host, on loading. It is disabled by default, because some hosts have trouble dealing with such plugins. After activation, restart your host to start using the surround capabilities of the plugins. Deactivation is done in the same way. Please note that all input and output busses will be multi-channel, that includes side- chain for example. For VST3/AU/AAX plugins the activation is not necessary.
First place the plugin on a surround track – a track that has more than 2 channels. Then select Surround from the plug-in’s Channel Mode menu. The plugins will regard this mode as a natural extension of 2 channel processing. For example, a compressor will process each channel separately or measure the level by combining the levels of all of the inputs provided. Further surround processing properties, to enable/disable each channel or adjust its level, can be accessed via the Surround settings in the menu.
Ambisonics mode provides support for the modern 3D systems (mostly cinema and VR) with up to 64 channels (ambisonics 7th order). Support for this is still quite rare among the DAWs, so this needs to be activated in all DAWs using the Activate ambisonics item in the bottom. This is a global switch for all MeldaProduction plugins, which configures them to report 64in-64out capabilities to the host, on loading. After activation, restart your host to start using the ambisonics capabilities of the plugins. Deactivation is done in the same way. Please note that all input and output busses will be multi- channel, that includes side-chain for example.
First place the plugin on an ambisonics track, supported are all orders from 1st (4 channels) to 7th (64 channels). Then select Ambisonics from the plug- in’s Channel Mode menu. Finally select the Ambisonics settings in the menu and configure the Ambisonics order and other settings if needed. The plugins will regard this mode as a natural extension of 2 channel processing. For example, a compressor will process each channel separately or measure the level by combining the levels of all of the inputs provided.
AGC
AGC button enables or disables the automatic gain control – the automatic adjustment of the output volume such that it matches the input volume. Human hearing is very adaptable. In fact differences in loudness, for example when loading a preset, may go unnoticed and instead be perceived by the listener as “better sounding”, leading to a misjudgement. This feature should prevent this effect, thus

allowing the listener to focus on the sonic qualities only.
AGC works by measuring input and output loudness, and then compensating for the difference while also taking into account any induced latency. The loudness measurement follows the ITU and EBU specifications with an RMS of 400ms, meaning that the reaction time is 400ms. This is very important, as you should be aware that AGC needs time to properly adjust after any change of settings. Also note that this is a nonlinear operation. It may cause some distortion due to the long measurement time. It should be negligible though.
AGC makes sense in most applications including reverberation and equalization for example. However, in some cases it can work against the plugin. A simple example of this is a tremolo, where the plugin manipulates output volume. If the tremolo rate is slow enough, say 1Hz, it makes the period longer than the actual AGC measurement time. So whenever the tremolo changes audio level, the AGC starts compensating for it. This can of course be used creatively, since AGC will always be a little “late”, but it is definitely not a desired outcome in normal use.
Another example of this is compression. When used with short attack and release times, AGC can effectively compensate for the attenuation of the compressor. However when the attack and release times are higher than 100ms, the compressor’s reaction time becomes too slow, and in conjunction with AGC, severe pumping can occur.
As a general rule of thumb as for all audio processing tasks, use it only if you know you need it. AGC is a powerful tool that can make your workflow easier, but it can also be damaging.
Set
Set button uses the AGC (automatic gain compensation) processor to calculate the ideal output gain to ensure that the output audio loudness is equal to the input level. To use it, simply enable playback in your host and click the button. The plugin’s output gain will be adjusted to match the input and output levels as closely as possible. If the AGC is already enabled, the change will be instant and you can disable the AGC afterwards. Typically you will browse presets, generate random settings etc. During the entire time you will have AGC enabled to prevent you from experiencing different output loudness levels. When you find a sonically ideal setup, you simply click the Set button to set the output gain automatically and disable the AGC as you won’t need it anymore. If the AGC is not already enabled, clicking the Set button displays a window with progress bar for a few seconds, while the plugin temporarily enables AGC and analyses input and output of the plugin. After that the AGC is disabled again.
To get the best results, you should feed the plugin with some “universal” signal. If you are processing a specific instrument, play a typical part, a chorus in case of vocals for example. If you are creating presets designed for general use, white/pink noise may be the best signal to use.
Limiter
Limiter button enables or disables the safety limiter. Its purpose is to protect you from peaks above 0dB, which can have damaging effects to your processing chain, your monitors and even your hearing.
It is generally advised to keep your audio below 0dB at all times in all stages of your processing chain. However, several plugins may cause high level outputs with certain settings, often due to unprevented resonances with specific audio materials. The safety limiter prevents that.
Note that it is NOT wise to enable this “just in case”. As with any processing, the limiter requires additional processing power and modifies the output signal. It is a transparent single-band brickwall limiter, but you still need to be careful when using it.
A-H presets selector
A-H presets selector controls the current A-H preset. This allows the plugin to store up to 8 sets of settings, including those parameters that cannot be automated or modulated. However it does not include channel mode, oversampling and potentially some other global controls available from the Settings/Settings menu.
For example, this feature can be used to keep multiple settings, when you are not sure about the ideal configuration When you change any parameter, only the currently selected preset is modified.
The four buttons below enable you to switch between the last 2 selected sets using the A/B button, morph between the first 4 sets using the morphing button and copy & paste settings from one preset to another (via the clipboard).
It is also possible to switch between the presets using MIDI program change messages sent from your host. The set selected depends on the Program Change number: 0 selects A, 7 selects H, 8 selects A, 15 selects H and so on.
A/B
A/B button switches between the active and previously active A-H preset (not necessarily the A and B presets themselves). To compare any 2 of the A-H presets, select one and then the other. Clicking this button will then switch between these two. You can do the same thing by clicking on the particular presets, but this makes it easier, letting you close your eyes and just listen.
Morph

Morph button lets you morph between the A, B, C and D settings. Morphing only affects those parameters that can be automated or modulated; that does include most of the parameters however. When you click this button, an X/Y graph is shown allowing you to drag the position indicator to any position between the letters A, B, C and D. The closer you drag the indicator to one of the letters, the closer the actual settings are to that preset. Please note that this will overwrite and change the preset that is currently selected, so it is best to select a new preset e.g. ‘E’, then use the morphing method. This way you will define the settings for A, B,C and D, morph between them, and store the result in ‘E’ without any modification of the original A, B, C and D presets. Please note that the ABCD morphing itself cannot be automated and that, while morphing, the changes to the underlying parameters are not notified to the host (there may be hundreds of change events).
Copy
Copy button copies the current settings to the system clipboard. Other presets, oversampling, channel mode and other global settings are not copied. Hold Ctrl to save the settings as a file instead. That may be necessary for complex settings, which may be too long for system clipboard to handle. It may also be advantageous when you want to send the settings via email. You can load the settings by drag & dropping them to a plugin or holding Ctrl and clicking Paste.
Paste
Paste button pastes settings from the system clipboard into the current preset. Hold Ctrl to load the settings from a file instead. Hold Shift to paste the settings to all of the A-H slots at once.
Undo
Undo button reverts the last change. Only changes to automatable or modulatable parameters and global settings (load/randomize) are stored.
Redo
Redo button reverts the last undo operation.
WAV
WAV button lets you process a file using the plugin with current settings. You can either click the button and select a file, or drag & drop the file (or multiple files) onto the button. If you let the plugin process WAV files, these will be saved with the original settings. If you use a different file type (such as MP3), the plugin will create WAV files with 32-bit bits-per- sample floating point. Please note that the files will be overwritten, so make a copy first if you want to keep the original.
Collapse
Collapse button minimizes or enlarges the panel to release space for other editors.
Basic panel
Basic panel contains the most important transient processor parameters.
Attack transformation
Attack transformation lets you perform an arbitrary transformation on the attack stages. It is applied in the level independent algorithm only. The transformation graph changes the gain applied to individual samples. The X axis defines the default gain that the plugin would perform for a sample. The Y axis defines the gain that you would like to perform for such a sample. So for example, a horizontal line graph at 0% would make the processor do nothing, because any gain the plugin would like to perform

would be transformed to 0%, hence +0dB. Conversely a horizontal line graph at 100% would cause a highly overdriven output, because all samples in the attack stage would be amplified by the value defined by Attack parameter.
Output gain
Output gain defines the gain applied to the output. The plugin also applies some compensation for any gain added by processing. Range: -24.00 dB to +24.00 dB, default 0.00 dB
Attack
Attack defines the gain applied to the attack stage. Range: -24.00 dB to +24.00 dB, default 0.00 dB
Sustain
Sustain defines the gain applied to the sustain stage. please note that this acts only on the short part of signal following the attack part. For small Resolution values this may produce results that are too fluctuating or even distorting. Range: -24.00 dB to +24.00 dB, default 0.00 dB
Saturation
Saturation defines the amount of saturation applied to the added attack signal. You can use it to highlight the attacks even more by adding harmonics instead of increasing the gain more than necessary. Range: 0.00% to 100.0%, default 0.00%
Advanced panel
Advanced panel contains more advanced transient processor parameters.
Sidechain
Sidechain switch makes the plugin follow the side-chain input instead of the main input. This can be handy if you want to emphasise attacks from one instrument in another one – typically follow the drums and apply the transient processing to a pad for example.
Resolution
Resolution determines the transient detector resolution. As a result this affects the length of the attack and sustain stages. Range: 0 ms to 200 ms, default 20 ms
Link channels
Link channels controls how much the signal level for each channel is controlled by the other channels. With 0% the link is disabled and each channel is not affected by the other channels at all. This is suitable to balance stereo channels, for example. With 100% the link is enabled and all channels are controlled by levels of all channels equally (that is the average level of those channels), therefore the

processor will apply the same amount of processing on all channels. This is the default in most cases as it preserves relative levels between the channels. Range: 0.00% to 100.0%, default 100.0%
Detector mode
Detector mode selects the algorithm that the plugin uses to detect transients. None of the modes are better or worse, so you can choose subjectively. Approximated mode takes the least amount of CPU, but its response especially in sustain stages may be not accurate, which can however be advantageous in some cases. Accurate is the default, it takes the most CPU, but its response is as accurate as possible in both the attack and release stages. Hybrid falls in between the 2 modes.
Output
Output defines the type of the output signal. You can listen either to the output signal, or to the added (or subtracted) signal, or to the transients themselves.
Level independent
Level independent activates the advanced algorithm, which makes the plugin react in the same way to loud and silent signals. When this is disabled the higher the input level, the more prominent the effect. When enabled however, changing the input level has only a minimum effect, mostly on the saturation.
Global meter view
Global meter view provides a powerful metering system. If you do not see it in the plug-in, click the Meters or Meters & Utilities button to the right of the main controls. The display can work as either a classical level indicator or, in time graph mode, show one or more values in time. Use the first button to the left of the display to switch between the 2 modes and to control additional settings, including pause, disable and pop up the display into a floating window. The meter always shows the actual channels being processed, thus in M/S mode, it shows mid and side channels. In the classical level indicators mode each of the meters also shows the recent maximum value. Click on any one of these values boxes to reset them all. In meter indicates the total input level. The input meter shows the audio level before any specific processing (except potential oversampling and other pre-processing). It is always recommended to keep the input level under 0dB. You may need to adjust the previous processing plugins, track levels or gain stages to ensure that it is achieved. As the levels approach 0dB, that part of the meters is displayed with red bars. And recent peak levels are indicated by single bars. Out meter indicates the total output level. The output meter is the last item in the processing chain (except potential downsampling and other post-processing). It is always recommended to keep the output under 0dB. As the levels approach 0dB, that part of the meters is displayed with red bars. And recent peak levels are indicated by single bars. Width meter shows the stereo width at the output stage. This meter requires at least 2 channels and therefore does not work in mono mode. Stereo width meter basically shows the difference between the mid and side channels. When the value is 0%, the output is monophonic. From 0% to 66% there is a green range, where most audio materials should remain. From 66% to 100% the audio is very stereophonic and the phase coherence may start causing problems. This range is colored blue. You may still want to use this range for wide materials, such as background pads. It is pretty common for mastered tracks to lie on the edge of green and blue zones. Above 100% the side signal exceeds the mid signal, therefore it is too monophonic or the signal is out of phase. This is marked using red color. In this case you should consider rotating the phase of the left or right channels or lowering the side signal, otherwise the audio will be highly mono- incompatible and can cause fatigue even when played back in stereo. For most audio sources the width is fluctuating quickly, so the meter shows a 400ms average. It also shows the temporary maximum above it as a single coloured bar.

If you right click on the meter, you can enable/disable loudness pre- filtering, which uses EBU standard filters to simulate human perception. This may be useful to get a more realistic idea about stereo width. However, since humans perceive the bass spectrum as lower than the treble, this may hide phase problems in that bass spectrum.
Time graph
Time graph button switches between the metering view and the time-graphs. The metering view provides an immediate view of the current values including a text representation. The time-graphs provide the same information over a period of time. Since different time-graphs often need different units, only the most important units are provided.
Pause
Pause button pauses the processing.
Popup
Popup button shows a pop-up window and moves the whole metering / time-graph system into it. This is especially useful in cases where you cannot enlarge the meters within the main window or such a task is too complicated. The pop- up window can be arbitrarily resized. In metering mode it is useful for easier reading from a distance for example. In time-graph mode it is useful for getting higher accuracy and a longer time perspective.
Enable
Enable button enables or disables the metering system. You can disable it to save system resources.
Collapse
Collapse button minimizes or enlarges the panel to release space for other editors.
Collapse
Collapse button minimizes or enlarges the panel to release space for other editors.
Utilities
Map
Map button displays all current mappings of modulators, multiparameters and MIDI (whichever subsystems the plugin provides).
Lock
Lock button displays the settings of the global parameter lock. Click on it using your left mouse button to open the Global Parameter Lock window, listing all those parameters that are currently able to be locked. Click on it using your right mouse button or use the menu button to display the menu with learning capabilities – Learn activates the learning mode, Clear & Learn deletes all currently-lockable parameters and then activates the learning mode. After that, every parameter you touch will be added to the lock. Learning mode is ended by clicking the button again. The On/Off button built into the Lock button enables or disables the active locks.
Collapse
Collapse button minimizes or enlarges the panel to release space for other editors.

Multiparameter
Multiparameter button displays settings of the multiparameter. The multiparameter value can be adjusted by dragging it or by pressing Shift and clicking it to enter a new value from the virtual keyboard or from your computer keyboard.
Click on the button using your left mouse button to open the Multiparameter window where all the details of the multiparameter can be set. Click on it using your right mouse button or click on the menu button to the right to display an additional menu with learning capabilities – as described below.
Menu
Menu button shows the smart learn menu. You can also use the right mouse button anywhere on the multiparameter button.
Learn attaches any parameters, including ranges. Click this, then move any parameters through the ranges that you want and click the multiparameter button again to finish. While learning is active, “REC” is displayed on the multiparameter button and learning mode is ended by clicking the button again.
Clear & Learn clears any parameters currently in the list then attaches any parameters, including ranges. Click this, then move any parameters through the ranges that you want and click the multiparameter button again to finish. While learning is active, “REC” is displayed on the multiparameter button and learning mode is ended by clicking the button again.
Reset resets all multiparameter settings to defaults.
Quick Learn clears any parameters currently in the list, attaches one parameter, including its range and assigns its name to the multiparameter. Click this, then move one parameter through the range that you want.
Attach MIDI Controller opens the MIDI Settings window, selects a unused parameter and activates MIDI learn. Click this then move the MIDI controller that you want to assign.
Reorder to … lets you change the order of the multiparameters. This can be useful when creating active-presets. Please note that this feature can cause problems when one multiparameter controls other multiparameters, as these associations will not be preserved and they will need to be rebuilt.
In learning mode the multiparameter does not operate but rather records your actions. You can still adjust every automatable parameter and use it normally. When you change a parameter, the plugin associates that parameter with the multiparameter and also records the range of values that you set.
For example, to associate a frequency slider and make a multiparameter control it from 100Hz to 1KHz, just enable the smart learn mode, click the slider then move it from 100Hz to 1KHz (you can also edit the range later in the Multiparameter window too). Then disable the learning mode by clicking on the button.
Collapse
Collapse button minimizes or enlarges the panel to release space for other editors.

Preset selector
Preset management window provides management for your presets.
Backup
Backup button lets you backup presets for all MeldaProduction software into a single file, so you can transfer it to a different machine and restore the presets there for example.
Restore from backup
Restore from backup button lets you restore presets for all MeldaProduction software from a single file created by the Backup button.
Folders tree

Folders tree lets you organize your presets into any number of folders. Use the buttons at the bottom of the window to create, rename or delete sub- folders. Note that these are not actual files & folders on disk, but are records in the preset database.
Auto-open
Auto-open switch makes the tree automatically open selected items, so that all sub-folders are visible, whenever you select one. This makes it easier to browse through large structures containing many folders. The switch also makes the browser show all presets available in the selected folder including all sub-folders (except when you select the root folder).
Open all
Open all button expands the whole tree, so you can see all of the folders. This may be handy when editing large preset structures.
Close all
Close all button collapses the whole tree except for the root folder. This may be handy when editing large preset structures.
Add
Add button creates a new folder in the tree
Rename
Rename button lets you rename the selected folder.
Delete
Delete button deletes the folder including all the presets and subfolders in it.
Export
Export button lets you export the selected folder including all presets and sub-folders into a file, which you can then transfer to any computer. Or just use as a back-up.
Import
Import button lets you import a file containing presets and sub-folders and add it to the selected folder. The importer will ask you whether to destroy the original contents, so that the new presets replace previous ones, or to keep both.

Presets list
Presets list contains all presets available in the selected folder. Double- click on a preset or use Load button to load a preset. Use the buttons at the bottom of the list to perform additional changes. Please note that these are not actual files & folders on disk, but are records in the preset database.
Favourite
Favourite button toggles the ‘favourite’ indicator for the selected preset.
Show
Show button shows only the favourite presets and hides the others.
Sort
Sort button shows the presets sorted alphabetically.
Random
Random button selects and loads a random preset from the current folder. This way you can quickly browse the presets in the folder in a completely random order.
Previous
Previous button selects and loads the previous preset from the current folder.
Next
Next button selects and loads the next preset from the current folder.
Submit preset
Submit preset button submits the selected preset to the online exchange servers and retrieves all the presets currently in the database. This feature serves as an online database of presets available for all the user community. Please do not submit garbage presets.
Download presets
Download presets button retrieves all the presets currently in the database. This feature serves as an online database of presets available for all the user community. Please consider participating by submitting your presets as well.
Load

Load button loads the specified preset. Please note that you can do the same thing by double-clicking the preset itself or pressing the Enter key.

Add
Add button creates a new preset using the current settings.

Rename
Rename button lets you rename the selected preset.
Replace
Replace button replaces the selected preset by one with current settings.

Delete
Delete button deletes the selected preset.

Search filters the list of available presets to those containing the keywords in name or information.

Search

Clear
Clear button deletes all text in the search field.

Preset information
Preset information field contains optional information about the preset, which you can edit when creating or renaming the preset.

Plugin settings
Plugin settings window offers more advanced settings and is available via the Settings button.

Licence panel
Licence panel lets you manage licences on this computer.
Activate
Activate button lets you activate your licence for the plugin on this computer.
GUI & Style panel

GUI & Style panel lets you configure the plugin’s style (and potentially styles of other plugins) and other GUI properties.

Style button lets you change the style for this particular plugin.

Style

Random style
Random style button selects a random style with random editor mode.

Default style
Default style button reverts to the default style and default size of the GUI. Hold the Ctrl key while clicking to revert all MeldaProduction

software products, not just the current plugin.
Select current style as default
Select current style as default button stores the current style as the default for all MeldaProduction software. This is used for the other plugins that are currently using the default style; that is, those plugins for which you have NOT selected a specific style. Please note that if you have already selected a specific style for a particular plugin, then it won’t be changed until you use the Default style button.
GPU acceleration
GPU acceleration controls how much the GPU is used for visual rendering to save CPU power. Enabled mode provides maximum speed and lets the GPU perform as many drawing operations as possible. Compatibility mode uses the GPU for drawing, but doesn’t use modern technologies for maximum performance. Use it if you experience occasional problems with drawing, the usual case for older ATI graphics cards. With Pro Tools on OSX this mode is always used instead of Enabled mode due to compatibility problems with this host. Disabled mode disables GPU acceleration completely, drawing is then performed by the CPU. Use only if you experience technical difficulties. A known problem may occur when using multiple displays with multiple graphical interfaces. When moving the plugin window from one display to another, it may stop displaying correctly until you move it back to the original display.
Frames per second
Frames per second controls the refresh rate of the visual engine. The higher the number is the smoother everything is, but the more CPU it requires. You might want to lower this value if your computer is running out of CPU power.
Enable high DPI / retina support
Enable high DPI / retina support enables the plugin to use the high resolution on high DPI (Windows) and retina (OSX) devices. It is enabled by default and detected automatically, if the host allows it. If you run into any problems, you can disable it using this option. It may be desired if you use multiple displays where only some of them feature the high resolution making the image on the low resolution ones look ugly.
If you disable this option, on Windows the high DPI device detection will be ignored and the plugin will probably appear very small. You can manually compensate for it by using a bigger style. On OSX disabling this option will disable the high DPI rendering, resulting in the classic blurry look of non- compliant applications. Changes take effect after you restart the host.
Enable colorization
Enable colorization enables the plugin to change the colors of certain elements overriding your style settings. Plugins use that to highlight different parts of the graphics interface for easier workflow. You may want to disable it if you just feel it’s not for you. This particular option is relevant only for controls – knobs, sliders, checkboxes etc.
Enable colorization for panels
Enable colorization for panels enables the plugin to change the colors of certain elements overriding your style settings. Plugins use that to highlight different parts of the graphics interface for easier workflow. You may want to disable it if you just feel it’s not for you. This particular option is relevant only for containers – panels, graphs etc.
Allow default colors by plugin type
Allow default colors by plugin type is on by default and makes the plugin select its default colors depending on the type of the Plugin. Hence for instance equalizer will always be green. This is done by selecting one of the first 8 color presets for the current style, so the actual colors depend on selected style and its presets. You may want to disable this if you for example want all plugins to look the same including the style and colors. It is necessary to restart your host for a change to this option to take effect.
Allow style changes if the editor is too big
Allow style changes if the editor is too big is on by default and makes the plugin change its style, editor mode and other settings if it finds out it is too big to fit the current screen resolution.
Clear window settings cache
Clear window settings cache button deletes stored states of all popup windows on all MeldaProduction software. The window settings mostly contain positions and sizes, but in some cases also the data inside the popup windows. You can use this feature if something goes wrong, a window doesn’t appear at all, problems like that. While this shouldn’t happen and it’s generally better to contract our support, this button provides a potential quick fix.
Plugin settings panel

Plugin settings panel contains settings that control the behaviour of this plugin instance. These are properties that rarely need to be changed, so they have been moved here.
Intelligent sleep on silence
Intelligent sleep on silence option provides a huge CPU saver by automatically disabling the plugin processing if the input is silent and if the plugin doesn’t generate some signal on its own. This makes the plugins take virtually no CPU if there is no need for them to actually process anything. Disable this if you run into any problems with them.
Smart bypass
Smart bypass enables the high quality crossfading bypass system, which ensures a smooth transition between the processed and dry signals. You may want to disable it if you are using settings with latency on a plugin, which demands lots of CPU power, which would otherwise need to perform processing even when bypassed, which is pretty much the only downside of the smart bypassing algorithm.
MIDI thru
MIDI thru makes the plugin pass all input MIDI through to its MIDI output. That is often advantageous in DAWs such as Reaper, which naturally pass MIDI from one plugin to the next.
Sample-accurate event processing
Sample-accurate event processing makes the plugin schedule every event such as MIDI or automation to their accurate locations with sample accuracy, if the host allows it. For example, if the block size in your host’s audio settings is 1024 samples, this means the plugin is probably processing blocks of 1024 samples, in 44100 Hz sampling rate it is about 23ms. If this setting is disabled, any change in automation, MIDI, modulation etc. may then be granularized to 23ms (once per block), which means that you will not be able to recognize events that occur say 10ms apart from each other. When this setting is enabled however, the plugin divides processing blocks to sub-blocks and processes the events at their correct positions. This may, of course, require more CPU power.
Latency reporting
Latency reporting makes the plugin report latency to the DAW, if any. Normally this is enabled, but in certain live situations you may want to disable this, so that the DAW stops compensating the latency on other tracks. It has no effect if the plugin is placed on master track.
Custom GUI for devices
Custom GUI for devices enables displaying custom GUIs for the easy screen devices. You can disable it if you like the generic GUI better.
Global system settings panel
Global system settings panel contains settings which are applied to all plugins on this computer.

Intelligent sleep on silence (global)
Intelligent sleep on silence (global) is a global switch, which disables the Auto disable on silence feature in all plugins on the system. It is provided “just in case” something goes wrong.
Right click sets default value
Right click sets default value makes the engine set default value to a parameter when you right click on it. By default, a menu is displayed instead, with an option to set the default value, but potentially with more features. When this is disabled, you can still set a default value by holding ctrl/cmd when right clicking the control.
Tablet mode
Tablet mode enables better support for tablets at the expense of the mouse. Enable this if you are using a tablet to control the plugins and it is behaving incorrectly.
Enable keyboard input
Enable keyboard input enables the keyboard input for the main plugin window. You may want to disable if the plugin intercepts spacebar key (often used by the host for playback enable/disable and your host doesn’t allow for the problem itself.
Collapse plugin toolbar
Collapse plugin toolbar makes all plugins collapse the plugin toolbar containing more advanced features such as channel modes, A-H presets, oversampling, safety limiter etc. It is enabled by default to make the user interfaces cleaner and easier to grasp for beginners.
Set default settings
Set default settings button stores the current plugin settings as the defaults, so that when you open a new instance of the plugin, these settings will be loaded automatically.
Reset default settings
Reset default settings button removes the defaults that you set using Set default settings button, so that when you open a new instance of the plugin, the factory defaults will be loaded.
Advanced global settings panel
Advanced global settings panel contains advanced settings which are applied to all plugins on this computer.
Saturation antialiasing
Saturation antialiasing enables a global support for antialiasing in saturation algorithms available in many of the plugins. These require additional CPU processing, however significantly reduce aliasing artifacts without a need for oversampling.
Forward unused keyboard input to DAW
Forward unused keyboard input to DAW makes the plugin forward unused keyboard events to the DAW from its popups. If this is disabled, pressing say spacebar commonly used to start/stop playback won’t work if a popup window is active. Enabling this makes this work and it is optional just in case your DAW does something unexpected.
Silence when busy
Silence when busy makes all plugins silence the output when something time consuming is being performed in background and the plugin needs to wait for it. For instance, in modular plugins such as MXXX, adding a module requires lots of changes in the entire engine, so it is performed in background and while the plugin is inconsistent state, it is temporarily bypassed. Sometimes however, when

performing live, bypassing makes the dry signal go through and that may not be wanted. So you can enable this option, and the plugin will silence the output instead.
Store resampled files
Store resampled files allows the plugins create audio files for sampling rates being used if they differ from the original file sampling rate. It is used only by a few plugins, but it can improve the loading performance a lot at the cost of some additional storage on the hard drive. Disable this option if you are short on free space.
Show confirmations for destructive actions
Show confirmations for destructive actions makes the plugin display a confirmation window whenever you are going to change the plugin settings irreversibly when using a feature, for example: when resetting your settings.
Online check for updates and tutorials
Online check for updates and tutorials lets the plugin ask about once a week if there is a new version or tutorial available so you can be easily kept up to date.
Anonymous online platform reporting
Anonymous online platform reporting helps us maximize compatibility with your operating system and host. If enabled, our plugins will send information about the system and host that you are using. We can use this information to find out which plugins and platforms are used the most and maximize testing and support there. Platform reporting is completely anonymous and requires only minimal internet connection time (a few kB once a week).
CPU benchmark
CPU benchmark button calculates the performance of the plugin with the current settings.
System info
System info button displays some technical information about the build and the machine.
Compatibility settings panel
Compatibility settings panel contains advanced settings you rarely need unless you run into some problems when using multiple versions or old projects.
Storage compatibility mode for V15
Storage compatibility mode for V15 reverts to the older and much slower storage system used by version 15 and older. Use this if you want to open your projects or presets on older version of MeldaProduction plugins.
Automation compatibility mode for V10
Automation compatibility mode for V10 reverts the set of automation parameters back to version 10 and earlier. Use this if you need the plugins to work with projects, which contain autmation, made using version 10 or older. In version 11 the list of automatable parameters have been highly simplified and reorganized and multiparameters are provided for the vast number of hidden parameters. This should speed up loading, improve workflow with the plugins and improve compatibility with various hosts.
Smart interpolation panel

Smart interpolation panel controls the depth of the smart interpolation algorithm, which controls the parameters in order to provide maximum audio quality and lower the chance of zipper noise. Smart interpolation is engaged whenever you change any parameter via the GUI, modulators, multiparameters, MIDI or automation.
Many parameters can be automated easily and the plugin responds with sample- accurate results. However, several parameters need exhaustive pre-processing when changed. In these cases, the parameters are not updated every sample, but, for example, once every 32 samples. This highly reduces CPU usage, but affects the output quality.
With modulators the situation is more complicated. Besides the updating issue, the modulator itself can perform some pretty advanced processing, hence it is better to perform the processing in blocks. However, the bigger the block, the less often the modulator updates those parameters associated with it and the resulting modulation is less accurate. In a way you can say that the modulator is slower and lazier. This may actually be wanted, so when it comes to modulators it is not true that a better mode always means better output quality.
The smart interpolation mode controls the maximum number of samples being processed before the parameters are updated. Minimal mode uses 2048 samples and rarely will do anything unless processing offline. Normal mode uses 256 samples and usually is enough to achieve good quality results. High mode uses 32 samples and provides perfect quality for most cases. It is also a good compromise between CPU usage and audio quality, so it is the default. Very high mode uses 4 samples and you will rarely need it. Extreme mode uses 1 sample, which means that everything is updated after every single sample. This provides the highest possible accuracy and quality you can ever achieve, however it requires lots of CPU and it is very unlikely that you will ever need it. If you use this mode and still hear audio artifacts, then either what you are hearing is actually CPU overload, or you are doing something that is not physically possible.
The higher the mode, the quicker the parameter updates, but the more the CPU load.
Please note that modulating certain parameters without artifacts is impossible. For example, when modulating a delay very quickly, the physics of such a process just cannot occur in the natural world and the results are appropriately unnatural. These physically impossible processes usually manifest themselves as distortion or zipper noise.

MultiParameter editor
Multiparameter is a powerful structure, which can speed up your workflow significantly and even perform automatic tasks, often useful when performing in real-time for example. Essentially a multiparameter is a controller which controls other parameters, in fact, an unlimited number of them. Each parameter has limits and potentially a transformation curve for more advanced processing. By manually moving the multiparameter (or automating/modulating it) you can control all of the associated parameters at once. This is just the beginning, but it is worth demonstrating how it could be used. We will show it on a vibrato effect. MVibratoMB (and partly MVibrato) is very good at simulating rotary speakers. A rotary speaker traditionally contains a speed switch, or in our case we will think of it as a speed knob – a control that alters the spin speed of the rotary. This would normally be the Rate parameter of the vibrato. However, when the rate is increased, the vibrato starts changing the pitch too much, sounding a little too “honky-tonk”. We can compensate for this by lowering the Depth parameter. As it is not very convenient to control 2 parameters at once, we use a multiparameter to control both parameters with appropriate ranges (ascending for the Rate and descending for the Depth). Besides this basic usage, multiparameters can also work as triggers and switches. Set a multiparameter’s mode to Trigger or Switch and it stops being a slider and becomes a button. When you click the button, the multiparameter starts moving on its own – over the dialled-in switch time it will increase its value (and also the values of any associated parameters) to a maximum and, in the case of trigger mode, then decrease it back to a minimum. In switch mode clicking the button again, the multiparameter decreases back to the minimum value. To make the multiparameter into a simple switch, we can set the switch time to minimum, but in this case we want to extend the functionality in our rotary example. As mentioned, rotary speakers often have a speed switch. Once switched on, the speed starts increasing until it reaches the “fast” setting, and when switched off, the speed starts decreasing to the original “slow” rate. All we need to do to replicate this functionality is to set the multiparameter’s mode to ‘switch’. A real rotary actually has 2 speakers, one for low frequencies and the other for the higher ones. As you might expect, these do not have the same spin rate nor do they speed up or slow down equally either. Here is where we can start showing the true potential of multiparameters. To simulate this, we have to use two bands of MVibratoMB, the first one will simulate the lower reproductor, and the second will be the higher. We use the first multiparameter to control the first band’s rate in the same way as described in the example above. Similarly, we use the second multiparameter to control the second band’s rate. Now we have 2 switches and can make each band speed-up or slow-down separately, but we want just one switch for both bands. To do this, we use a third multiparameter to control the first and second multiparameters, in switch mode again but with a 0ms switch time. Pressing the button of the 3rd multiparameter instantly activates the other 2 multiparameters, they both start speeding-up, over a different time period as we requested. Pressing the button again, releases it which also instantly releases the first 2 multiparameters and they start slowing down. Just like the real thing. Now that we have shown you what is possible with multiparameters, it is worth mentioning that they are used extensively for building devices on the easy screens of most Melda plugins. Every multiparameter given a name in the Information panel will be shown on the Easy screen (if the plugin has one). Check our online video tutorials to get more information about multiparameters and building devices.

It is also worth mentioning that you can access the multiparameter settings directly from easy screen by holding Ctrl+Alt and clicking on the target control. It may simplify building devices. Note that this may not work for some editor modes such as meters or bar graphs.
Presets
Presets button displays a window where you can load and manage available presets. Hold Ctrl when clicking to load a random preset instead.
Left arrow
Left arrow button loads the previous preset.
Right arrow
Right arrow button loads the next preset.
Randomize
Randomize button loads a random preset.
Copy
Copy button copies the settings onto the system clipboard.
Paste
Paste button loads the settings from the system clipboard.
Map
Map button displays all current mappings of modulators, multiparameters and MIDI (whichever subsystems the plugin provides).
Behaviour
Randomizer
Randomizer switch is available only for Trigger mode and it makes the multiparameter produce random values for each associated parameters. This is useful to implement some sort of randomization feature, which covers a set of parameters. You usually want to set the Switch time to 0, so that the randomization is instant, but longer values may be useful for some creative effects.
XY-pad between banks
XY-pad between banks switch is available only for Banks mode and it lets you create XY pads, that would interpolate between 3 or more banks that you specify. With 4 banks the engine creates a classic XY pad, where the 1st bank belongs to the left top corner, 2nd to the right top, 3rd to left bottom and 4th to the right bottom. With more banks the engine creates a circular pad with vertices associated to individual banks. Please note that in order for this to work, the multiparameter actual needs 2 multiparameters (X and Y values), hence must NOT be the

last one and it occupies the next multiparameter as well. It is recommended to name the next multiparameter and associate it to some parameters, ideally the same ones, just to make sure the engine won’t remove it. But in fact only the first multiparameter will actually be working.

Mode controls the behaviour of the multiparameter.

Mode

Normal mode makes the multiparameter work like any other control.

Switch mode hides the slider and shows a button instead. The button has 2 states. By pushing the button, the multiparameter value starts rising from 0% to 100% over a specified time interval. By pushing it again the value starts falling back to 0%. You could do the same thing having the multiparameter in normal mode and moving the slider from left to right and then back, but mode this performs that automatically and maintains a constant time period.

Trigger mode is similar to switch mode, but the button has only a single state and when you push it, the value automatically goes from 0% to 100% and then back without any need to push the button again.

Banks mode is very different. A multiparameter in banks mode keeps several states (called banks) for all of the parameters, much like A-H presets, but only with a limited set of parameters. The multiparameter then morphs between the banks or can be set to switch directly between them (no interpolated values). This is a marvellous way to control many parameters with complex settings by using a single multiparameter.

Let’s explain the banks mode in more detail. Say you switch a multiparameter to banks mode, learn a few parameters and set the number of banks to 4. Then bank 1 contains a value for all of the parameters. Similarly bank 2 contains a different value for each of them. And so on. If you set the multiparameter slider to 0%, the associated parameters will be set to values in bank 1. If you set the slider to 100%, bank 4 will be used. If you set the slider to 33.3%, bank 2 will be used. And what if you select 50%? Then it will be halfway between bank 2 and bank 3.

You can have many banks, you can edit each of them, generate random settings etc. So let’s say you want to create some complex movement. You use a multiparameter in banks mode, select a reasonable number of banks. You can edit each of them, but it is easier to use the randomization button to generate random settings for each of them. Then every time you move the multiparameter, all of the associated parameters will move, somewhere between the banks. You can then use a modulator or automation to slowly adjust the multiparameter.

Meter mode makes the multiparameter work as a meter. Instead of controlling other parameters it starts following the value of them. You can then use that to implement a simple meter on the easy screen (if the plugin has one).

Speed
Speed controls the interpolation time. When it is zero and you change the multiparameter value, the associated parameters are adjusted immediately. If this is non-zero however, the actual parameters won’t change immediately but will interpolate over time. The speed value is actually the time needed to go from minimum to maximum or vice versa. So if this is 1 second and the current value is say 0% and you click 100%, it will take 1 second for the multiparameter to get there. This feature is provided mainly because changing some parameter via MIDI or mouse may cause unnecessary zipper noise or inaccuracies due to low MIDI precision. Using the interpolation you can somewhat slow everything down, so that the artifacts become negligible. It can also be used creatively. The default value has been experimentally tested to avoid all artifacts for most parameters.

Switch time
Switch time defines the time needed to switch from the minimum value to the maximum one, or conversely. It is used only in switch and trigger modes.

Steps
Steps lets you create an arbitrary number of equi-distant steps for the multiparameter values. While this technically limits the possibilities of the multiparameter by limiting the number of accessible values, it is sometimes easier to choose from a predefined number of options than from the full range. If you want to use different ranges between the steps, use the Banks mode with Interpolate values disabled.
Value mode
Value mode defines the units displayed on the multiparameter. Percents mode lets the multiparameter display percentages between 0% to 100%. Percents (-100% to 100%) displays percentages between -100% to 100%. By first parameter mode uses the current value of the first parameter that is controlled by the multiparameter. For example, if you want to control a plugin gain, but also in addition to the changed gain control other parameters, you may still want to call the multiparameter “gain” and the units should be decibels as usual, not percentages which do not make much sense for such a multiparameter. By bank name displays the name of the nearest bank. In some controls, such as switchers, it is possible to display the set of the values as a menu. The menu is created automatically and it even creates groups for better clarity, based on the prefix of the bank

names. You can use ‘ # ‘ (hashtag surrounded by spaces) to define the groups manually like this: “group # name”. For example, you can name one bank “Main group # First bank” and another “Main group # Second bank”, and these will be displayed in a single group in the menu. If you are going to use this method, make sure the ‘ # ‘ sequence is present in each bank’s name. By bank name interpolated considers name of all banks numbers. It then interpolates between them and displays the result as a number. By bank name interpolated log is similar, but interpolates the values in logarithmic domain.considers name of all banks numbers. It’s useful for units, which are naturally logarithmics, such as frequency. By bank number shows the index of the nearest bank. Expression lets you formulate the value -> text and back using mathematical expressions and can be used for some more complex MPs or if you need some custom units.
Default
Default controls the default value of the multiparameter. You can edit it directly or just set the MP into its reasonable default and click the Set current value.Most GUI components created for the multiparameter respond to right-click by setting the default value in the same way that other parameters do. It is essential for user experience when building your own devices.
Set current value
Set current value stores the current value as the default one for the multiparameter.
Origin
Origin informs the GUI engine of the origin of the value. For instance, a default value for panorama is in the center and it is logical that visual elements controlling panorama should somehow highlight the center position. If, for example, you are using a value button to edit the panorama, by default it displays the current value using a bar starting from the left side (being the origin defined as minimum) towards the actual value, but here it is better to display the bar from the center towards the current value, whether it is on the left or right of the center. Therefore the center should be the origin.
Set current value
Set current value stores the current value as the origin for the multiparameter.
Set center
Set center sets the center (50%) as the origin for the multiparameter. This is often the case for parameters such as gain and panorama, so it deserves a dedicated button. It is supported only for knobs.
Value to text
Value to text is available only with Expression Value mode and lets you enter a text featuring mathematical expressions to produce the units. This can be used for more complex multiparameters. The text itself is just another text, but it can contain substrings of this structure:
{expression} or {expression;decimals}
where expression is the actual mathematical expression and decimals is the number of decimal places in the resulting value. Here is the list of variables available for each expression:
x = the multiparameter value in 0..1 sr = current sampling rate
Functions and features of the expressions are available below. Now let’s see a few examples: Test: {x} – produces “Test: 0.12” (with MP value 0.1234) {x} ({x100;0}%) – produces “0.12 (12%)” (with MP value 0.1234) {ffrom01(x);1} Hz – produces say “215.56 Hz” (“20.0 Hz” for MP value 0 and “20000.0 Hz” for MP value 1) {todb(sqr(x));4} dB – produces “-12.0412 dB” for 0.5. “sqr” is used to mimic the transformation used in pretty much every Volume parameter in MeldaProduction plugins.
Expression evaluator uses traditional C/C++ style formating, which is natural for most people. It provides arithmetics, logical and conditional operators. Following terms are supported: Constants: pi, e, sqrt2, ln2
Arithmetic operators: -a inverts the sign, e.g. “-x” produces +2 for x=-2 a+b = addition a-b = subtraction ab = multiplication a/b = division a%b = modulo, remainder after division a^b = power, e.g. “2^3” produces 222 = 8
Arithmetic functions: min(a,b) = minimum of both values max(a,b) = maximum of both values limit(a,min,max) = a limited into the interval min..max

to01(a,min,max) = converts “a” as min..max to 0..1 from01(a,min,max) = converts “a” as 0..1 to min..max tom11(a,min,max) = converts “a” as min..max to -1..1 fromm11(a,min,max) = converts “a” as -1..1 to min..max
Basic mathematic functions: abs(x) = absolute value, e.g. abs(-3) = 3 sqr(x) = xx sqrt(x) = square root exp(x) = natural exponential e^x ln(x) = natural logarithm log10(x) = logarithm with base 10 log(x, base) = logarithm with specified base inv(x) = 1/x sgn(x) = sign of x, -1 or 0 or +1 depending on xx round(x) = rounding to the nearest value floor(x) = rounding to the nearest lower value, e.g. floor(-2.3) = -3 ceil(x) = rounding to the nearest higher value, e.g. ceil(-2.3) = -2 rand(x) = random value from 0 to x
Functions for specific units: f01(a) = converts “a” as frequency from 20…20000 into log scale 0..1 ffrom01(a) = converts “a” as 0..1 (log scale) to frequency from 20…20000 todb(a) = converts “a” as multiplier to dB value by calculating “20log10(a)” fromdb(a) = converts “a” as dB value to multiplier by calculating “10^(a/20)”
Trigonometric functions: sin(x), asin(x), cos(x), acos(x), tan(x), atan(x), sinh(x), cosh(x), tanh(x)
Logical operators: a==b = comparison producing 1 if “a” and “b” are equal, 0 otherwise a!=b = comparison producing 1 if “a” and “b” are NOT equal, 0 otherwise a<b = comparison producing 1 if “a” is lower than “b”, 0 otherwise a<=b = comparison producing 1 if “a” is lower or equal to “b”, 0 otherwise a>b = comparison producing 1 if “a” is greater than “b”, 0 otherwise a>=b = comparison producing 1 if “a” is greater or equal to “b”, 0 otherwise !a = logical negation, 0 produces 1, 0 otherwise a&&b = logical AND, produces 1 if both “a” and “b” are nonzero a||b = logical OR, produces 1 if any of “a” and “b” are nonzero a^^b = logical XOR, produces 1 if “a” and “b” are logically different a ? b : c = if a is nonzero, then the result is b, otherwise it is c}}}
Text to value
Text to value is available only with Expression Value mode and lets you convert a number user enters as a text input into the multiparameter value in 0..1. This can be used for more complex multiparameters. Unlike Value to text here you need to enter a single expression, no need for any other text. If the resulting value exceeds the 0..1 interval, it is automatically limited. Here is the list of variables available for the expression:
x = the value the user entered sr = current sampling rate
Functions and features of the expressions are available below. Now let’s see a few examples: x – sets MP to 0.1234 if the user entered “0.1234” x/100 – sets MP to 0.1234 if the user entered “12.34” (or “12.34%” for example) fto01(x) – sets MP to the proper frequency in log scale, e.g. 20 is translated to 0, 20000 to 1 fromdb(sqrt(x)) – sets MP to 0.5 if the user entered “-12.0412” (or “-12.0412 dB” for example). “sqrt” is used to mimic the transformation used in pretty much every Volume parameter in MeldaProduction plugins.
Expression evaluator uses traditional C/C++ style formating, which is natural for most people. It provides arithmetics, logical and conditional operators. Following terms are supported: Constants: pi, e, sqrt2, ln2
Arithmetic operators: -a inverts the sign, e.g. “-x” produces +2 for x=-2 a+b = addition a-b = subtraction ab = multiplication a/b = division a%b = modulo, remainder after division a^b = power, e.g. “2^3” produces 222 = 8
Arithmetic functions: min(a,b) = minimum of both values max(a,b) = maximum of both values limit(a,min,max) = a limited into the interval min..max to01(a,min,max) = converts “a” as min..max to 0..1 from01(a,min,max) = converts “a” as 0..1 to min..max tom11(a,min,max) = converts “a” as min..max to -1..1 fromm11(a,min,max) = converts “a” as -1..1 to min..max
Basic mathematic functions: abs(x) = absolute value, e.g. abs(-3) = 3 sqr(x) = xx sqrt(x) = square root exp(x) = natural exponential e^x ln(x) = natural logarithm log10(x) = logarithm with base 10 log(x, base) = logarithm with specified base inv(x) = 1/x sgn(x) = sign of x, -1 or 0 or +1 depending on xx round(x) = rounding to the nearest value floor(x) = rounding to the nearest lower value, e.g. floor(-2.3) = -3 ceil(x) = rounding to the nearest higher value, e.g. ceil(-2.3) = -2 rand(x) = random value from 0 to x

Functions for specific units: f01(a) = converts “a” as frequency from 20…20000 into log scale 0..1 ffrom01(a) = converts “a” as 0..1 (log scale) to frequency from 20…20000 todb(a) = converts “a” as multiplier to dB value by calculating “20log10(a)” fromdb(a) = converts “a” as dB value to multiplier by calculating “10^(a/20)” Trigonometric functions: sin(x), asin(x), cos(x), acos(x), tan(x), atan(x), sinh(x), cosh(x), tanh(x) Logical operators: a==b = comparison producing 1 if “a” and “b” are equal, 0 otherwise a!=b = comparison producing 1 if “a” and “b” are NOT equal, 0 otherwise a<b = comparison producing 1 if “a” is lower than “b”, 0 otherwise a<=b = comparison producing 1 if “a” is lower or equal to “b”, 0 otherwise a>b = comparison producing 1 if “a” is greater than “b”, 0 otherwise a>=b = comparison producing 1 if “a” is greater or equal to “b”, 0 otherwise !a = logical negation, 0 produces 1, 0 otherwise a&&b = logical AND, produces 1 if both “a” and “b” are nonzero a||b = logical OR, produces 1 if any of “a” and “b” are nonzero a^^b = logical XOR, produces 1 if “a” and “b” are logically different a ? b : c = if a is nonzero, then the result is b, otherwise it is c}}}
Appearance
Name
Name specifies the name of the multiparameter, which is shown on the multiparameter button. The name is also used for devices – the multiparameter serves as a parameter for the device (on the Easy screen). If no name is specified or if the first character is an , then the parameter is hidden. This is useful if you need some internal multiparameters which you don’t want to show on the Easy screen for some reason.
Group
Group can be used to put some multiparameters into the same group, which results in them being placed in the same panel on the Easy screen (the device editor). Additionally you can actually place the groups into tabs by setting group to “tabname#groupname”. The name of the tab needs to be there only for the first parameter of the new group. This makes it possible to build a complex devices with dozens of parameters.
Editor mode
Editor mode controls the way the multiparameter are to be displayed on the Easy screen. Normal is the default mode and is represented by a small knob or button. Big mode is similar, but uses a big knob or big button. Button mode displays a value button, which is usually more compact than knobs. Check-boxes makes the multiparameter displayed as a set of checkboxes (also called radio buttons). It is relevant only in Banks mode. Check-boxes horiz & below is similar but displays the checkboxes in a single row, hence horizontally. Below mark makes the label underneath the actual checkbox. Switcher and Selectors are useful for selecting a number of discrete values and similarly to check- boxes these are working only in Banks mode. Title button places the control into the title bar of the panel to which it belongs.

Title enable button places the control into the title bar of the panel to which it belongs and makes it a standard enable button (which also makes all controls within the panel unavailable if it is itself disabled). XY pad creates a 2 dimensional XY pad control, that edits this multiparameter in the X axis and the next multiparameter in the Y axis. There are multiple versions of this control, all of them differ only by size. Spacer is a helper mode for device design, which doesn’t display anything and only keeps empty space. Meter creates a simple meter instead. You will probably want to set the multiparameter to Meter mode as well or attach it to a modulator. Meters don’t really control anything and their purpose is purely to get a visual feedback. The meters can be horizontal or vertical and they can be up or down. Up is the usual choice useful for peak meters for example. Down is useful for gain reduction meters. Bars start/end mode creates an editor, similar to step sequencer editor, where each parameter has its own bar. The Bars start starts the editor and all multiparameters are then added to it until a multiparameter with Bars end mode is found or until there are no remaining multiparameters. Note that this kind of editor doesn’t show units and may have several other limitations. Order is a very specific editor for Order modules available in modular systems such as MXXX. It lets you provide an processing order editor on the easy screen. To use it, attach the MP to Order parameter of the Order module and edit the MP information field, so that it contains all the items to be ordered, separated by ‘;’. The number of items must match the number of items in the Order module, otherwise the order won’t work properly. You can also include colors for each item separated by # (hexa or one of the predefined set: Dynamics, Distortion, Modulation, Stereo, Spectral, Synthesis, Instrument, MDrummer, Reverb, Delay, EQ, Filter, Saturation, Limit, Time, Pitch, FX) and enable MP indices. Example of the info: Compressor#Dynamics;EQ#EQ;Limiter#007F7F;Something
Panel type
Panel type defines the type of panel in which multiple controls of the same group are placed. These differ only in their graphics display.
Color
Color defines colorization for the element on the Easy screen (if the plugin has one). The feature is disabled if the Alpha value of the color is 0. Using this feature often increases memory consumption of the plugin, so make sure you use it only if necessary and try to use as low a number of different colors as possible. It is recommended to use only the snapshot colors to make sure the same colors are used in most cases, reducing the memory consumption. It is also highly recommended to use colors with a value (lightness) of 128 (the middle value), which makes sure that the lightness of the elements won’t be changed. This works best for most styles. Please note that the style may be configured to simply ignore this color, so there may be no change at all. If you use this feature, make sure that you test it with all styles.
For the sake of workflow the colors have predefined meanings. It’s highly recommended to follow this standard: Orange – dynamics Green – equalization, filtering Brown/yellow – reverb, delay Blue – modulation Red – limiting, saturation, distortion Cyan/yellow – stereo Purple/pink – time, pitch, unison… Grey – utilities, tools
Group color
Group color defines colorization for the group panel on the Easy screen (if the plugin has one) and is ignored for all multiparameters except for the first one in a group. The feature is disabled if the Alpha value of the color is 0. Using this feature often increases memory consumption of the plugin, so make sure you use it only if necessary and try to use as low number of different colors as possible. It is recommended to use only the snapshot colors to make sure the same colors are used in most cases, reducing the memory consumption. It is also highly recommended to use colors with a value (lightness) of 128 (the middle value), which makes sure that the lightness of the elements won’t be changed. This works best for most styles. Please note that the style may be configured to simply ignore this color, so there may be no change at all. If you use this feature, make sure you test it with all styles.
For the sake of workflow the colors have predefined meanings. It’s highly recommended to follow this standard: Orange – dynamics Green – equalization, filtering Brown/yellow – reverb, delay Blue – modulation Red – limiting, saturation, distortion Cyan/yellow – stereo Purple/pink – time, pitch, unison… Grey – utilities, tools
Set
Set button sets the color and group color for all multiparameters in the same group. It is pretty sensible to do that as all controls should look similar within each group. This can also be done by editing each parameter, but this way is easier.
Visible
Visible checkbox controls if the parameter is visible on the Easy screen (if the plugin has one). Its effect is similar to the ‘*’ prefix in the parameter name, but the multiparameter’s name is also available to the plug-in host. This is useful when you wish to automate that multiparameter from the host but not show it on the Easy screen. This parameter can also be attached to another multiparameter for example in order to change the GUI somehow.

Enabled
Enabled switch enables/disables the multiparameter. If disabled, it is grayed on the easy screen.
Same row
Same row checkbox defines if the parameter should be displayed next to the previous one on the Easy screen. Otherwise it will be placed on the next row. This setting serves as a hint and the plugin may ignore it, if it is impossible to do.
Resizable X
Resizable X switch lets you specify if the panel could be resized. It is on by default to make sure everything gets resized, however when using multiple panels next to each other, it may be advantageous to disable resizing of some of them to save space. Otherwise each panel’s size is proportional to number of controls it contains, which could make some of the panels larger than actually necessary.
Resizable Y
Resizable Y switch lets you specify if the panel could be resized vertically. It is off by default to make sure everything has the minimum size it requires, but for aesthetic reasons you may want to make all groups on the same row the same size even if the controls inside them are not.
Randomizable
Randomizable option defines if the multiparameter can be randomized on the easy screen. You may want to disable this for input/output gain for example.
Show name
Show name option lets you show or hide the name of the multiparameter for some editor modes. The option has no effect for several editor modes.
Stepped / Continuous
Stepped / Continuous option tells the engine that the multiparameter can be in 2 modes, stepped or continuous. If so, it is assumed that you either used Banks mode or Steps to produce some sort of predefined set of values for the stepped mode. By enabling this option you allow the engine to convert the multiparameter to continous mode by either ignoring the steps or interpolating the bank values. It can be used when designing devices.
Lockable
Lockable option creates a lock button next to the parameter on the Easy screen, allowing the user to browse through presets without this parameter changing. Please note that this feature is available only for some editor modes. When the parameter is first locked on the Easy screen it is added to the set of lockable parameters (which are listed in the Global Lock window).
Separate collapse
Separate collapse checkbox makes the panel collapsable separately on the Easy screen. By default it is disabled and that makes the engine find all panels on the same row and collapse all of then or none of them.
Functional when disabled
Functional when disabled switch makes the multiparameter work even when disabled. This may be useful in some complex scenarios, where you need to make the MP control the target parameters and only use the Enabled flag to grey out the controls on the easy screen.
Fine control
Fine control switch makes the multiparameter editor steps extra small, which is useful, when you need very high precision. This is often handy when using banks mode with many banks interpolating.
Advanced
Advanced switch makes the multiparameter ‘advanced’, disabled by default. If such an multiparameter exists, the engine also creates a button to show/hide all advanced multiparameters. In effect this lets you create a simple GUI with optional advanced controls.
Store
Store makes the multiparameter stored. Relevant when creating devices. In some rare cases you may want to disable this, e.g. if the value is a meter or somehow it just doesn’t need to be save at all.
Store in presets
Store in presets makes the multiparameter stored in presets. Relevant when creating devices. In some cases you may want to store the value, but ignore it when browsing presets. For instance, input gain may be ignored if the user is supposed to set the gain to some predefined value and then browse the presets without changing that gain.
Controls MPs
Controls MPs informs the engine that this MP is controlling other multiparameters. As such it shouldn’t be ‘invoked’ unless it is explicitly touched by the user. This is relevant for example when it is used in a device with a device presets – loading a device preset invokes all relevant MPs, so that the state of the device is remembered properly, but invoking this one would actually make things incorrect.
Include in doc
Include in doc makes the multiparameter’s help included in the documentation / panel help. You may want to disable this if there are multiple ‘identical’ controls with the exact same help info, for all of them except for one.

Edit information about the multiparameter
Edit information about the multiparameter lets you edit the information displayed as help for the multiparameter control on the easy screen. It can use a simplified HTML format, but in practice only following tags are likely to be useful: = name of the control, the info should begin with that.