MUSIC ALL DSP-48DT FIR DSP Speaker Processor User Manual

DSP-48DT FIR DSP Speaker Processor

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Product Specifications

• Model: DSP-48DT
• Type: Network DSP FIR Processor
• Channels: 4×8 input/output, 4×4 Dante
  channels

Product Usage Instructions

1. Technical Parameters

The DSP-48DT features a high-performance DSP processor with the
following specifications:

• Processor: ADI SHARC 21489 450MHz
• System Delay: 2.1ms
• AD/DA: 24-bit 96KHz

2. Audio Inputs and Outputs

The device supports various input signals and offers balanced
inputs and outputs:

• Analog Audio Inputs: 4 channels balanced with
  an input impedance of 20K and max input level of 20dBu/Line

• Dante In/Out: 4×4 channels

• Output: 8 channels balanced at line level with
  an output impedance of 50

3. Audio Performance Specifications

The audio performance specifications include:

• Frequency Response:
  20Hz-20kHz(+-0.5dB)/Line

• THD+N: -93dB(@0dBu,1kHz,A-wt)/Line

• Ground Noise: 20Hz-20kHz, A-wt, -93dBu

• SNR: 113dB(@16dBu,1kHz,A-wt)/Line

4. Connection Ports and Indicators

The device features various connection ports and indicators:

• USB: Type A-B
• RS232: Serial port communication
• TCP/IP Interface: RJ-45
• Indicator Light: Clip, level, edit, mute

5. Electrical and Physical Specifications

• Supply: AC100V-240V 50/60 Hz
• Product Dimensions: 483mmx215mmx44.5mm
• Packaged Dimensions: 537mmx343mmx77mm
• Net Weight: 3.8kg
• Packaged Weight: 4.2kg
• Operating Temperature: -20 to 80°C

Frequently Asked Questions (FAQ)

Q: How do I control multiple devices using the DSP-48DT?

A: You can control multiple devices using the PC software
MusicAllDSP provided with the device. Simply connect via RJ45, USB,
or RS232 connectors to access control functions.

Q: How do I optimize speaker parameters with the FIR DSP audio

processor?

A: The standard FIR designer in the MusicAllDSP software offers
automatic linear magnitude and phase functions, making it easy to
optimize speaker parameters for your specific setup.

Q: What are the operating temperature limits of the

DSP-48DT?

A: The device is designed to operate within a temperature range
of -20 to 80°C.

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DSP-48DT
Network DSP FIR Processor 4×8 4×4 Dante channels
User manual

MENU
Chapter 1 Introduction ………………………………………………………………………………………. – 1 Chapter 2 Technical parameters ………………………………………………………………………… – 2 Chapter 3 Functions structure and panel operation ………………………………………………. – 3 Chapter 4 Operation of control software – MusicAllDSP ………………………………………… – 7 4.1 Operating condition……………………………………………………………………………………… – 7 4.2 Connect to PC ……………………………………………………………………………………………. – 8 4.3 DSP functions setting ………………………………………………………………………………… – 10 4.3.1 DSP functions setting – INPUT …………………………………………………………………. – 11 4.3.2 DSP functions setting – NOISE GATE……………………………………………………….. – 11 4.3.3 DSP functions setting – PEQ-X (input and output) ………………………………………. – 12 4.3.4 DSP functions setting – DYNAMIC EQ ………………………………………………………. – 14 4.3.5 DSP functions setting – DELAY (input and output) ……………………………………… – 14 4.3.6 DSP functions setting – MATRIX MIX………………………………………………………… – 15 4.3.7 DSP functions setting – COMPRESSOR……………………………………………………. – 16 4.3.8 DSP functions setting – LIMITER………………………………………………………………. – 16 4.3.9 DSP functions setting – OUTPUT ……………………………………………………………… – 16 4.4 Monitoring and setting of channels………………………………………………………………. – 17 4.5 Menu – File ……………………………………………………………………………………………….. – 19 4.6 Menu – Device (including Device lock) …………………………………………………………. – 19 4.7 Menu – Connection ……………………………………………………………………………………. – 23 4.8 Menu – Preset …………………………………………………………………………………………… – 23 4.9 Menu – System………………………………………………………………………………………….. – 24 4.10 FIR filter and function ………………………………………………………………………………. – 25 4.10.1 FIR filter and applications ………………………………………………………………………. – 25 4.10.2 Using FIR DESIGNER in MusicAllDSP to adjust FIR magnitude and phase … – 27 4.10.2.a FIR DESIGNER – Import……………………………………………………………………… – 28 4.10.2.b FIR DESIGNER – FIR- EQ……………………………………………………………………. – 28 4.10.2.c FIR DESIGNER – Magnitude Correction and Phase Correction ……………….. – 29 4.10.2.d FIR DESIGNER – Generate…………………………………………………………………. – 30 –

FIR DSP SPEAKER PROCESSOR
Chapter 1 Introduction
DSP-48DT is a 4in 8out FIR DSP audio processor, integrated with high performance DSP processor, Dynamic EQ, FIR automatic linear phase and other powerful functions. This audio processor supports a variety of input signals: AnalogAES3Dante network audio. Standard FIR designer in the MusicAllDSP software provides automatic linear magnitude and phase function, easy to optimize speaker parameters.
With RJ45USB and RS232 connectors, PC software MusicAllDSP provides users an easy way to control multiple devices. The RS232 connection supports control by a third-party system.
Applications Party room Live show Outdoor activities Sports stadium
Features 4 analog inputs and 8 analog outputs. Each input can be switched to AES3 signal. 4 channels Dante network audio. High performance DSP processor, 96k 24bit sampling rate. Input with 15 bands PEQ, output with 10 bands PEQ. Supports HPF and LPF with ButterworthBesselLinkwitz-Riley. Support LSLV and HSLV, ALL-PASS, Band pass, Band stop filters, Phase, Notch filters. Input with 3 bands Dynamic EQ. Input with 4 x 512Taps 48k FIR linear phase setting. Output with 4 x 512Taps 48k FIR linear phase setting. Standard FIR automatic linear phase function designer. 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. LED VU indicator for input and output signals. High analytical power, wide dynamic audio performance, suitable for stage, bar and other high-end sound systems.
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FIR DSP SPEAKER PROCESSOR

Chapter 2 Technical parameters

DSP-48DT

1. DSP Processor

Process:

ADI SHARC 21489 450MHz

System delay:

2.1ms

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:

20dBu/Line

Dante in/out

4×4 channels

Output:

8 channels balanced. Line level

Output interface:

XLR(Neutrik®)

Output impedance:

50

3. Audio Performance Specifications

Frequency response: 20Hz-20kHz(+-0.5dB)/Line

THD+N:

-93dB(@0dBu,1kHz,A-wt)/Line

Ground noise:

20Hz-20kHz, A-wt, -93dBu

SNR:

113dB(@16dBu,1kHz,A-wt)/Line

4. Connection Ports and Indicators

USB:

Type A-B

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

3.8kg

Packaged Weight

4.2kg

Operating temperature: -2080

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FIR DSP SPEAKER PROCESSOR
Chapter 3 Functions structure and panel operation
– 3 –

Dimensions (mm)

FIR DSP SPEAKER PROCESSOR

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 (DANTE) B ANALOG (DANTE) C ANALOG (DANTE) D ANALOG (DANTE) 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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FIR DSP SPEAKER PROCESSOR
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 OPX Output X Compress

Buttons for setting
+,FREQ, Q, GAIN FREQ, Q FREQ, Q GAIN 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
BYPASS

FIR DSP SPEAKER PROCESSOR

OPX Output X Compress OPX Output X Limiter OPX Output X Limiter OPX Output X Fir

Q, GAIN Q, GAIN GAIN

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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FIR DSP SPEAKER PROCESSOR
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 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

FIR DSP SPEAKER PROCESSOR
If you connect the device by using network cable, click Setting in Device List, choose TCP in Connection window.
If you connect the device by using USB A-B, click Setting in Device List, choose USB in Connection window.
If you connect the device by using serial cable, click Setting in Device List, choose COM in Connection window. Please check port and baud rate carefully for 232 or 485 before setting.

The software will use the method set last time to check if the device is connected. If successfully connected, devices will be shown in device list.
Users can mute devices, refresh connections, or delete devices in this window. Single click the device to load the function interface.

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FIR DSP SPEAKER PROCESSOR

When using TCP control, there is a situation that only one point is displayed after scanning, but you can not connect the device. In this case change the IP address of the device to the same network range as the computer.

Right-click the device enclosure, a Net Setting window will show.
Set the IP address of the device. Refer to the IP showed in the bottom of the software. (the first 3 digits xxx.xxx.xxx. should be the same as the computer.

Successfully scanned and connected.

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FIR DSP SPEAKER PROCESSOR
User can link a multiple of the same devices in groups by clicking the Link button, and then set group device, group name and main device, link mode and parameters 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 are opened, users can drag the window to switch function Settings.
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FIR DSP SPEAKER PROCESSOR
4.3.1 DSP functions setting – INPUT
Set Phase of input; Set Mute of input; Select AnalogAES3Dante 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: -90 to 0dBu;

Click this function.

to enable

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FIR DSP SPEAKER PROCESSOR
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-2/3 kinds of high/low pass,Phase, Band pass,Band stop,Notch filter; 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-2/3 kinds of high/low pass,Phase, Band pass,Band stop,Notch filter; 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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FIR DSP SPEAKER PROCESSOR
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.

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4.3.4 DSP functions setting – DYNAMIC EQ

FIR DSP SPEAKER PROCESSOR

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 2000ms for input channel; Max 2000ms for output
channel;

Click function;

to enable this

Click

to reset each

channel; User can switch ft/cm/ms
measurement for delay.

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FIR DSP SPEAKER PROCESSOR
4.3.6 DSP functions setting – MATRIX MIX
In the above figure, input channels (on top side) corresponds to output channels(on left side). 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.
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FIR DSP SPEAKER PROCESSOR

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

Threshold: 0.0 to 24.0dBu; Release: 1 to 2895 ms;

Click this function;

to enable

4.3.9 DSP functions setting – OUTPUT

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FIR DSP SPEAKER PROCESSOR
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
There are 4 kinds of input signal in some products: ANALOG, DANTE network audio, AES digital audio, 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
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M Mute + Phase N Noise Gate E PEQ D Delay
4.4.3 Group and channels link

FIR DSP SPEAKER PROCESSOR
M Mute E PEQ D Delay C Compressor L Limiter + Phase

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

When click link button, Channels Link window would show as below:

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FIR DSP SPEAKER PROCESSOR
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. 4.6 Menu – Device (including Device lock)
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FIR DSP SPEAKER PROCESSOR
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