MUSIC ALL DSP-480 Network DSP FIR Processor User Manual
- August 14, 2024
- MUSIC ALL
Table of Contents
MUSIC ALL DSP-480 Network DSP FIR Processor
Specifications
- 4in 8out FIR DSP audio processor
- Integrated with high-performance DSP processor, Dynamic EQ, FIR filter, and other powerful functions
- Controlled via RJ45USB and RS232 with PC software MusicAllDSP
- ADI SHARC 21489 450MHz DSP processor
- System delay: 1.8ms
- AD/DA: 24-bit 96KHz
- Frequency response: 20Hz-20kHz(+-0.5dB)/Line
- THD+N: -90dB(@0dBu,1kHz,A-wt)/Line
- SNR: 108dB(@16dBu,1kHz,A-wt)/Line
- USB: Type A-B, free driver
- RS232: Serial port communication
- TCP/IP interface: RJ-45
- Product Dimensions: 483mmx215mmx44.5mm
- Operating temperature: -20°C to 80°C
Chapter 1: Introduction
The DSP-480 is a versatile audio processor with advanced features such as Dynamic EQ and FIR filtering. It can be controlled using the provided PC software MusicAllDSP via RJ45USB and RS232 connections.
Chapter 2: Technical Parameters
The DSP-480 features ADI SHARC 21489 450MHz DSP processor, 24-bit 96KHz AD/DA, and balanced analog audio inputs and outputs. The device has a system delay of 1.8ms and offers exceptional audio performance specifications.
Chapter 3: Functions Structure and Panel Operation
The front panel of the DSP-480 allows users to access various functions such as GLOBAL MEMORY, INPUT SECTION, MATRIX, and SYSTEM. Users can easily navigate through the menu using the NEXT or BACK buttons and make selections by pressing ENTER. The panel also provides quick access to presets and channel settings.
Operation of Buttons on Front Panel – Input & Output Channels
Users can mute input or output channels by shortly pressing the corresponding
button under the LED, which will turn red. To adjust channel parameters, users
can long-press the button under the LED, turning it blue.
Functions – Input Channels
- IPX Input X Gain
- IPX Input X Polar
- IPX Input X PEQ:1…15
Functions – Output Channels
- OPX Output X Gain
- OPX Output X Polar
- OPX Output X PEQ:1…15
FAQs
Q: How can I control multiple devices using the DSP-480?
A: You can control multiple devices by connecting the DSP-480 to your PC via
RJ45USB or RS232 and using the MusicAllDSP software provided.
Q: What is the operating temperature range of the DSP-480?
A: The DSP-480 can operate within a temperature range of -20°C to 80°C.
Chapter 1 Introduction
DSP-480 is a 4in 8out FIR DSP audio processor, integrated with high performance DSP processor, Dynamic EQ, FIR filter and other powerful functions. With RJ45USB and RS232, PC software MusicAllDSP provides users an easy way to control multiple devices. RS232 connectors support device being controlled from thirdparty system.
Applications Meeting room Broadcast Multi-function hall Features 4 analog
inputs and 8 analog outputs. High performance DSP processor, 96k 24bit
sampling rate. Input with 15 bands PEQ, output with 10 bands PEQ. Support HPF
and LPF with ButterworthBesselLinkwitz-Riley. Supports LSLV and HSLV, ALL-PASS
filters. Input with 3 bands Dynamic EQ. Input with 4 x 1024Taps 48k FIR linear
phase setting. Output with 4 x 512Taps 48k FIR linear phase setting. Support
presets archiving and locking, hide setting parameters. Control connections:
USB or TCP/IP. Configured with RS232 central control connection. Nice GUI
windows 7/8/10/11 software
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Chapter 2 Technical parameters
DSP-480
1. DSP Process
Process:
ADI SHARC 21489 450MHz
System delay:
1.8ms
AD/DA:
24-bit 96KHz
2. Analog Audio Inputs and Outputs
Input:
4 channels balanced.
Input interface:
XLR(Neutrik®)
Input impedance:
20K
Max input level:
16dBu/Line
Output:
8 channels balanced. Line level
Output interface:
XLR(Neutrik®)
Output impedance:
150
3. Audio Performance Specifications
Frequency response: 20Hz-20kHz(+-0.5dB)/Line
THD+N:
-90dB(@0dBu,1kHz,A-wt)/Line
Ground noise:
20Hz-20kHz, A-wt, -93dBu
SNR:
108dB(@16dBu,1kHz,A-wt)/Line
4. Connection Ports and Indicators
USB:
Type A-B, free driver
RS232:
Serial port communication
TCP/IP interface:
RJ-45
Indicator light:
Clip, level, edit, mute
5. Electrical and Physical
Supply:
AC100V240V 50/60 Hz
Product Dimensions
483mmx215mmx44.5mm
Packaged Dimensions 537mmx343mmx77mm
Net Weight
3.6kg
Packaged Weight
4.0kg
Operating temperature: -2080
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Chapter 3 Functions structure and panel operation
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Dimension (mm)
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Operating front panel
Press MENU, it will show menu list, using NEXT or BACK to select functions: GLOBAL MEMORY, INPUT SECTION, MATRIX, SYSTEM, press QUIT to exit.
Functions in panel Menu list
1.GLOBAL MEMORY 2.INPUT SECTION 3.MATRIX
RECALL a Memory STORY a Memory DELETE a Memory A ANALOG B ANALOG C ANALOG D ANALOG Routing Out.1=Input A*….
4.SYSTEM
1 IP SET 2 RENAME 3 DSP VERSION
Remark
Long press such output channel button under LED to change.
Press BYPASS, it will quickly show RECALL a Memory function, using NEXT or BACK to select presets and then press ENTER to enable one of presets.
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Operation of buttons on front panel – Input & Output Channels When user need
to quickly mute input or output channel, shortly press button under the LED of
such channel, the light will turn red.
When user need to set parameter of input or output channel, long press button
under the LED of such channel, the light will turn blue.
Functions – Input channels
IPX Input X Gain IPX Input X Polar IPX Input X PEQ:1…15 IPX Input X HPF IPX
Input X LPF IPX Input X Delay IPX Input X Noise Gate IPX Input X Noise Gate
IPX Input X DEQ:1…3 IPX Input X DEQ:1…3 IPX Input X DEQ:1…3 IPX Input X
DEQ:1…3 IPX Input X Fir
Buttons for setting
+,FREQ, Q, GAIN FREQ, Q FREQ, Q GAIN FREQ Q, GAIN FREQ, GAIN Q, GAIN Q, GAIN
Q, GAIN
Functions – Output channels
OPX Output X Gain OPX Output X Polar OPX Output X PEQ:1…15 OPX Output X HPF
OPX Output X LPF OPX Output X Delay
Buttons for setting
+,FREQ, Q, GAIN FREQ, Q FREQ, Q GAIN
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Buttons for setting
BYPASS BYPASS BYPASS
BYPASS BYPASS BYPASS BYPASS BYPASS BYPASS BYPASS
Buttons for setting
BYPASS BYPASS BYPASS
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OPX Output X Compress OPX Output X Compress OPX Output X Limiter OPX Output X Limiter OPX Output X Fir
FREQ, Q, GAIN Q, GAIN Q, GAIN GAIN
BYPASS BYPASS BYPASS BYPASS BYPASS
Remark: X” means the No. of such channel user has selected. If find no effect
after setting parameter, please check whether select BYPASS or not.
When user need to link channels and then set their parameter, long press
button under the LED of each channel, the light will turn blue. LCD will
display “IPX+” or “OPX+”, means the second channel or other channels will be
set same with first channel.
When user need to quickly mute channels in link setting, shortly press button under the LED of one of channels, all the lights will turn pink.
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Chapter 4 Operation of control software – MusicAllDSP
MusicAll provides user with a fast interaction to control one or more devices
through multiple methods: TCP/IP, USB, common serial port (RS232). Easily set
DSP functions of device, and check central control codes.The configuration
parameter can be stored in presets, convenient for various applications. 4.1
Operating condition MusicAllDSP is suitable for Win7/8/10/11 x86/x64 PC
systems with Microsoft .NET Framework 4.0 installed. Double click the file
with the MusicAllDSP logo:
the main interface will pop up:
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4.2 Connect to PC
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If connect device by using network cable, click Setting in Device List, choose
TCP in Connection windows.
If connect device by using USB AB, click Setting in Device List, choose USB in
Connection windows.
If connect device by using network cable, click Setting in Device List, choose
COM in Connection windows. Please check port and baud rate carefully for 232
before setting.
The software will scan device the method set in last time, to check if device
is connected. If successfully connected, devices will be shown in device list.
User can mute device, refresh connecting, or delete device in this window.
Single click device, to load function interface.
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When using TCP control, there is a situation that only one point is displayed after scanning, but can not connect device. In this case, user need to change the IP address of the device to the same network segment as the PC computer.
Right-click the device enclosure, a Net Setting window will show.
Set IP address of device refer to IP showed in the bottom of the software. Set
the first three paragraphs same with the PC IP.
Successfully scanned and connected.
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User can link multiple same devices in group by clicking Link button, and then
set group device, group name and main device, link mode and parameter
according to needs.
4.3 DSP functions setting Double-click HOME icon to open all functional
interfaces, or double-click a function icon separately to open the
corresponding interface. When multiple function windows opened, users can drag
the window to switch function Settings.
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4.3.1 DSP functions setting – INPUT
Set Phase of input; Set Mute of input; In Pro version, user can select
AnalogAESDante input signal; When choosing test signal, user can
select Sine/Pink Noise/White Noise for each input channel.
4.3.2 DSP functions setting – NOISE GATE
Attack: 1 to 2895ms; Release: 1 to 2895ms; Threshold: -120 to -60dBu;
Click
to enable
this function.
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4.3.3 DSP functions setting – PEQ-X (input and output)
High pass filter
enter value of frequency and select type, press
to enable this function:
Butterworth 6/12/18/24/36/48, Bessel 12/24/36/48, Linkwitz-Riley 12/24/36/48.
Low pass filter
enter value of frequency and select type, press
to enable this function:
Butterworth 6/12/18/24/36/48, Bessel 12/24/36/48, Linkwitz-Riley 12/24/36/48.
PEQ 15 bands for input channel Type: PEQ/LSLV/HSLV/ALLPASS-1/ALLPASS-2; Freq(Hz) Q Gain(dB): input value or use mouse pulley to set value; Users can also drag the frequency dot on the curve to adjust.
PEQ 10 bands for output channel Type: PEQ/LSLV/HSLV/ALLPASS-1/ALLPASS-2; Freq(Hz) Q Gain(dB): input value or use mouse pulley to set value; Users can also drag the frequency dot on the curve to adjust.
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Phase curve: display the phase curve of the current channel. View: show or
hide all balance control points. Bypass: turn on or off all equalizer EQ of
the current channel at the same time Preset: save all the setting parameter of
the equalizer of the current channel to the computer, and recall the channel
equalizer parameter of the computer, which can be called across channels and
devices. Copy: copy the current channel equalizer parameter value, which can
be pasted to other similar channels (such as input channel parameter can only
be copied to other input channels). Paste: used in combination with the copy
button to paste the last copied equalizer parameter value to the current
channel. Reset: reset the equalizer parameter to the default parameter values.
As shown in the figure above, the left side
is the interface switching
button for each channel. Click to switch the EQ channel, and the color is the currently
selected channel.
is the curve color of the EQ channel.
For each channel’s EQ
curve display switch, check it to enable it to display the curves of other channels in the
current channel interface.
4.3.4 DSP functions setting – DYNAMIC EQ
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Mode: Boost AboveBoost BelowCut AboveCut Below Threshold: -90 to 24.0dBu Q: 0.27 to 15 Ratio: 1.0 to 100.0 Max Gain: 0.0 to 12.0 Attack: 1 to 2895ms Frequency: 20 to 22000Hz Release: 1 to 2895ms Type: BYPASSPEQ Bypass button to switch
4.3.5 DSP functions setting – DELAY (input and output)
Max 1000ms for input channel; Max 1000ms for output
channel;
Click function;
to enable this
Click
to reset each
channel; User can switch ft/cm/ms
measurement for delay.
4.3.6 DSP functions setting – MATRIX MIX
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In the above figure, input channel (on top side) corresponds to output
channel. The value box with a value is mixing key of channels. When the mixing
key is green (double-click the value box to switch the state), the input
channel and output channel signal realizes the mixing function.
The right part of the above figure contains the gain, reset button, and clear
button of the matrix mix. Click the value box on the left, and then drag the
sliding block of the matrix mix gain or enter a value in the value box to
adjust the matrix block Click the reset button to reset the matrix mixing
function to the initial one-to-one state; click the clear button to clear all
the matrix mixing functions, and there is no correspondence between the input
and output of the device.
4.3.7 DSP functions setting – COMPRESSOR
Soft knee: 0 to 30; Threshold: -90.0 to 24.0 dB; Attack: 1 to 2895 ms; Ratio: 1.0 to 100.0; Release: 1 to 2895 ms;
Click this function;
to enable
4.3.8 DSP functions setting – LIMITER
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Threshold: -90.0 to 24.0dBu; Release: 1 to 2895 ms;
Click this function;
to enable
4.3.9 DSP functions setting – OUTPUT
Set phase of signal; Set mute of output channel; Set gain of output channel.
4.4 Monitoring and setting of channels
User can monitor gains level of input and output channels. 4.4.1 Channel gain
level
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There are 2 kinds of input signal in device: ANALOG and testing signal. It
will show a label for user.
Input value, drag gain fader or use mouse pulley to set value of gain.
4.4.2 Quick buttons of DSP in channels
M Mute + Phase N Noise Gate E PEQ D Delay
M Mute E PEQ D Delay C Compressor L Limiter + Phase
4.4.3 Group and channels link
User can quickly set channels in groups for opening or closing mute, phase, noise gate, PEQ and delay function.
M Mute + Phase N Noise Gate E PEQ D Delay
Channels link for input
M Mute E PEQ D Delay C Compressor L Limiter + Phase
Channels link for output
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When click link button, Channels Link window would show as below:
Select the corresponding channels to link, they will be in group for user to
set parameter. 4.5 Menu – File
New project: the project is restored to the initial open state. Demo Device:
user can view all the functions of the device without affecting the specific
device connected. Open: open an existing device management project from the
computer disk. Save: save the current equipment management project in the
computer disk. Save as: save the current equipment management project to the
computer disk.
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4.6 Menu – Device (including Device lock)
Devices: view or modify the software version information, device name and
device IP address of the upper and lower computer of the device. Set password
of device. Channel name: set the name of each input and output channel, with
memory function. Channel copy: copy device input and output channel parameter,
can realize cross-device copy parameter (Note: the same type of device is
required). Central control: provides user a quickly way to inquiry code of
Center Control setting. More details, please refer to another user manual
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Device locking User can set his own password of this device to protect audio
project after setting parameters. After unlock the device in software, user
can clear password or reset the password. The password can be in four-digit
format (0,1,2…9), so that user can use the control software or the front panel
of device to unlock the password. If the device is locked, there is a icon
showed in software and LCD display, as per Figure 7.18.1
Figure 7.18.1
Input the password in software to unlock the device
Input the password in LCD display to unlock the device When device is locking,
user can press mute button of each channels in front panel. Press either of
BACK, NEXT, MENU, ENTER, BYPASS, QUIT button, LCD will show interface to input
password, press GAIN button to select digit, and press BACK or NEXT to select
digit position. Then select “OK” and press ENTER to unlock device.
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If wrong input, software will remind user there is only 5 times to input right
password. More than 5 times, device can’t be unlock any more, user have to
return this device back to dealer or factory. The dealer or factory will reset
the device and clear all parameter settings.
Successfully input password and enter main interface
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4.7 Menu – Connection
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Port: set the connection mode, port number and baud rate, confirm the
connection mode and then select the corresponding port. Connect: connect and
download the device parameter. Disconnect: disconnect the connected device.
Connect all: connect and download the device parameter of all devices in the
device list. Disconnect all: disconnect all connected devices in the device
list.
4.8 Menu – Preset
Save: select the saved gear, save all the parameter of the current automatic
gear of the machine to the device preset (2~30 Preset bit). Recall: call the
device preset to the current automatic gear position. Delete: delete the
existing preset, the default file cannot be deleted, over written or saved.
Clear: delete all presets in the device. Boot: select a certain preset, after
setting it as the boot file, each time the device is powered on, it will
automatically call the save the parameter; the last set parameter need
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to be automatically saved, please set the automatic file to the boot file.
Import preset: import a single preset file on the computer. Export the preset:
export all the parameter of the current state to the computer, and generate a
single preset file. Import preset package: import the preset package file
containing multiple presets on the computer. Export preset package: pack
multiple presets in the machine’s preset into one preset package and export it
to the computer. 4.9 Menu – System
Language: multi-language switching, supports simplified, traditional, and
ENGLISH. About: current control software and device firmware version
information. Upgrade: use can upgrade the firmware by using this function, a
upgrade .bin file should be needed from seller or speaker factory. In general,
no need to upgrade the firmware in device. Only there is a bug or new function
in software, upgrade function will be used.
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4.10 FIR filter and function
4.10.1 FIR filter and applications
When user uses PEQ to adjust audio signal and set a linear magnitude, he can
find the phase of signal changed, due to IIR filter. However, DSP products
provide user a useful tool FIR filter to adjust audio signal with a linear
phase.
Some calculation: Frequency resolution = Sampling/Taps Available min. frequency Frequency resolution*3
Means when use adjust audio signal with 48kHz, 1024 taps, FIR filters will take effect in frequency above 141Hz of audio signal. The taps value more high, the FIR filter curve more steep.
FIR filter processing audio signal will produce a certain delay:
Delay = (1/Sampling Hz)*Taps/2
Taps
48kHz Sampling
96kHz
256
2.67ms, LF 563Hz
512
5.33ms, LF 279Hz
768
7.99ms, LF 188Hz
1024
10.67ms, LF 141Hz
2048
21.33ms, LF 70Hz
Applications: Linear of the phase curve of the speaker;
1.33ms, LF 1125Hz 2.67ms, LF 558Hz 4.00ms, LF 375Hz 5.33ms, LF 281Hz 10.67ms,
LF 141Hz
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Match the phase and magnitude of different speaker models within the same
product line, as well as different speaker models in the installation project
to make it easier to debug speaker groups and arrays;
Dealing with linear array systems (for audience area coverage optimization);
Frequency division optimization to improve the consistency of frequency
response of
multi-division speakers over their coverage Angle range.
Devices required: Measurement Microphone ×1
Audio Interface
×1
Windows PC
×1
(installed software including
Smaart, rePhase or FIR
Designer, MusicAllDSP)
FIR audio processor or DSP ×1
network power amplifier
Speaker
×1
Connection schematic diagram:
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4.10.2 Using third party software to set FIR magnitude and phase Step 1:
measure phase curve of speaker in Smaart V7
Step 2: copy curve to ASCII in Smaart V7
Step 3: copy curve to software rePhase “Import Measurement From Clipboard”
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Step 4: adjust phase EQ or any other parameter in software, to match a linear
phase for speaker
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Step 5: export .txt file after setting
Marks: 1. Set taps in 2048/1024/768/512/256, here we set in 512. 2. Set rate
in 48000Hz. 3. User can rename this file and find it easily. 4. Set directory
for exporting file, such as C:/Users/User/Desktop. 5. Click “generate” to
export a FIR .txt file.
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Step 6: import FIR .txt file in FIR audio processor or DSP network power
amplifier
Open MusicAllDSP software, user can choose an input channel or output channel
as needed, such as FIR in output channel, it will show a FIR function window.
effect this importing.
press IMPORT to import txt. file, than press STORE to
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remember to cancel BYPASS.
Step 8: measure the curve of speaker again, use can find it become more
linear.
After all setting, please remember to save a preset for your hard working in
the speaker.
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