TBProAudio AMM2 Automatic Microphone Mixer User Manual

AMM 2
Automatic Microphone Mixer
Manual

TBProAudio 2022
(C) TBProAudio 2022

Introduction

AMM is a 64to2 channel automatic microphone mixer. It offers several mixing modes and extensive controls for each channel.
AMM can be used to mix quickly a discussion round, a dialog with several speakers or even an audio conference with up to 32 microphones or mono/stereo lines to a stereo signal.

Features

AMM offers the following features:

• 32 internal stereo channels
• internal mixing or external mixing with sender/receiver mode
• speech pre filter
• switchable pre-delay
• envelope controlled channel strength
• noise gate
• mix modes: normal, auto, auto balanced, prio-mix
• moderator mode
• extensive channel controls like mono, trim, bypass, weight, mute, solo and pan
• input/output metering
• write channel strength as automation data to DAW
• multi channel output
• click-free 64-bit internal processing
• Large and easy to use GUI
• Scalable GUI

Design

AMM mixes automatically 16 stereo channels into one stereo out channel, depending on the mixing modes and channel strength. AMM controls the envelope of the channel strength with the parameter Attack, Hold and Release.
Noise gate: Once a channel is above the noise gate level, it will count into the AMM algorithm.

Moderator Mode: A single channel can be defined as moderator channel. This channel has priority over the other channels. As soon as the moderator channel is active, the other channels are dimmed by the value of the moderator attenuation. This function is available in all mixing modes. 

Mix Modes:
Normal Mixing (Mix mode off)
AMM is used as normal 64to2 mixer including moderator function.
Auto Mixing (Mix mode Auto)
AMM automatically reduces the strength of a channel when it is not being used. It lowers the hiss, rumble, reverberation and other extraneous noise that occur when several microphones operate simultaneously. The strength of suppression is controlled by the parameter strength.
Auto Balanced Mixing (Mix mode Auto Bal.)
AMM automatically reduces the strength of a channel when it is not being used. The sum of all channels is not louder as the loudest channel. The strength of suppression is controlled by the parameter strength.
Prio Mixing (Mix mode Prio)
AMM automatically mutes all channels except the loudest channel. It cancels the hiss, rumble, reverberation and other extraneous noise that occur when several microphones operate simultaneously. Channel strength: Controls the contribution of each channel to the mixing algorithm. 0.0 means equal contribution, +1.0 means louder channels contribute more, quieter less; -1.0 works the opposite.

Minimum System Requirements

• Windows 7, OpenGL 2 GFX card
• Mac OS X 10.11, Metal GFX card
• SSE2 CPU
• Win: 32/64 Bit VST, 32/64 Bit VST3, 32/64 Bit AAX
• OS X: 64 Bit VST, 64 Bit VST3, 64 Bit AU, 64 Bit AAX
• Tested with: Cockos Reaper, Steinberg Cubase/Nuendo/Wavelab 6+, FL Studio 12+, PT2018+, Reason 9.5+, Studio One, Ableton Live
• For latest information please visit www.tbproaudio.de

Plugin Controls

5.1 Plugin Mode
Int. Mixer: mixes all available channels of the track into a stereo signal.
Ext. Mixer: mixes all AMM sender instances into a stereo signal. In this mode additional AMM sender instances are needed on different audio tracks.
Send X: AMM sends current audio signal to channel x of AMM receiver instance. In this mode one additional AMM receiver instance on a different track is required.
5.2 Pre Filter
Toggles speech pre filter for all channels. It helps AMM to focus on speech parts of the audio signal.
5.3 Pre Delay
Adds ca. 10ms look ahead to the internal algorithms and compensates measurement delays.
5.4 Mix Mode
Off: normal 64to2 mixing
Auto: automatic mixing, AMM automatically reduces the strength of a channel when it is not being used
Auto Bal.: AMM automatically reduces the strength of a channel when it is not in use. The sum of all channels is not louder than the loudest channel.
Prio: AMM automatically mutes all channels except the loudest channel.
5.5 Strength
Controls the contribution of each channel to mixing algorithm. 0.0 means equal contribution, +1.0 means loud contributes more, quite less; -1.0 the opposite.
5.6 Noise Floor
Level for noise gate, in dB.
5.7 Moderator Attenuation
Attenuation of non moderator channels if moderator channel is active.
5.8 Attack
Raise time of loudness level, in sec.
5.9 Hold
Hold time of loudness level, in sec.
5.10 Release
Release time of loudness level, in sec.
5.11 Automation
Toggles writing of automation data to DAW. parameter “OUT: CHx Strength”.
5.12 Multi channel output (VST2 only)
Toggles either mixing the input to 2 channel output or directly to 64 channel output.
5.13 Channel Count.
Number of channels monitored by AMM.
5.14 Channel Group
Toggles display of channel group 1-8/9-16/17-24/25-32.
5.15 Main Out
Adjust main output gain, dB.
5.16 Main Meter
Displays the main output (left/right) levels, dB.
5.17 Channel Controls
5.17.1 Trim
Adjusts the input gain of the signal, in dB.
5.17.2 Weight
Adjusts the strength of the channel, in dB. It can be used at least on the moderator channel to give it more priority.
5.17.3 Pan
Pans the signal from left to right, balanced panning, -3dB pan law.
5.17.4 Moderator
Flags the channel as moderator channel.
5.17.5 Prio LED
Indicates the channel strength.
5.17.6 Mute
Mutes the channel.
5.17.7 Solo
Solos the channels.
5.17.8 Mono
Forces signal to mono.
5.17.9 Bypass
Passes the channel through the mixing algorithm.
5.17.10 Meter
Input (left) and output (right) level meter and noise gate level.
5.18 Plugin info
Click on the menu icon to get info about the plugin, online version check, open the online manual and change-log and change GUI size/scale.

DAW Setup

Create e.g. 4 microphone tracks, insert AMM into each track and enable AMM mode “Send x”. Then create the mix track, place AMM there as well, but set AMM mode to “Ext. Mixer”.
Route the four AMM sender tracks to the mix track. AMM will now receive the signal from the 4 microphone tracks.
See pictures below:
Reaper:

ProTools (use “Aux Input” as mix track, see below):

(C) TBProAudio 2022
Cubase:

NOTE:

• Please do not mix sender and mixer of different plugin formats. Otherwise, sender and receiver cannot communicate to each other.
• AMM mix mode “Ext. Mixer”: all tracks with AMM sender instance need to be routed into a mix track with AMM mix instance.
• All tracks with AMM instances need to have anticipative FX processing switched off. Otherwise the AMM mix instance cannot synchronize the AMM sender instances.
  Clicks and crackles could be the result.

Demo mode versus Registered mode

In demo mode (without activation) the plugin mutes audio every 90 seconds for a short period. This could be circumvented by clicking on the “TBProAudio” label within 90 seconds.

Registration/Activation

The plugins needs to be registered/activated to remove demo restrictions.
Please go to www.tb-proaudio.de to purchase the activation key. After purchase you will receive an email from TBProAudio with either the (zipped) activation key file or the activation key in text form. Go to the plugin menu->Activate plugin. Please follow the steps described here: https://www.tbproaudio.de/support/productactivation. After successful activation the key symbol shown in the GUI appears in golden colour.

Conclusion

So finally if you have any questions, suggestions or issues just let us know.
Visit us here: www.tbproaudio.de.
Your team from TBProAudio

(C) TBProAudio 2022

References

• TBProAudio - Professional Audio Plug-Ins for Mixing, Mastering and Recording - VST VST3 AU AAX | TBProAudio
• Product Activation | TBProAudio

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