BZB Gear BG-A1616MD User manual

BG-A1616MD
16x16 Digital Audio Processor with DANTE
User Manual

BZBGEAR BG-A1616MD PRODUCT MANUAL
Address: 830 National Drive #140, Sacramento, CA 95834, USA ·Tel: [phone] ·Email: [e-mail] 2

BZBGEAR BG-A1616MD PRODUCT MANUAL
Table of Contents
Statement 4
Safety Precaution 4
Introduction 5
Features 5
Package Contents 6
Specifications 6
Device Interface Descriptions 7
Computer Control 8
Volume Meter 9
Input Settings 10
Expander 11
Equalizer 12
Compressor 14
Auto Gain Control 15
Auto Mixer 16
Adaptive Feedback Cancellation 17
Adaptive Echo Cancellation 18
Adaptive Noise Suppression 19
Matrix Mixer 20
Output Settings 21
Two-way Crossover 22
Delay 23
Limiter 24
Scene Management 25
Serial Settings 26
Control Commands 27
GPIO Setting 27
Reset Setting 28
Dante® Controller Instructions 28
TCP/IP Control Command 30
RS-232 Control Command 36
Troubles and Solutions 41
Application Example 41
Tech Support 42
Warranty 42
Mission Statement 43
Copyright 44
Address: 830 National Drive #140, Sacramento, CA 95834, USA ·Tel: [phone] ·Email: [e-mail] 3

BZBGEAR BG-A1616MD PRODUCT MANUAL
Statement
Please read these instructions carefully before connecting, operating, or configuring this
product. Please save this manual for future reference.
Safety Precaution
●To prevent damaging this product, avoid heavy pressure, strong vibration, or immersion
during transportation, storage, and installation.
●The housing of this product is made of organic materials. Do not expose to any liquid,
gas, or solids which may corrode the shell.
●Do not expose the product to rain or moisture.
●To prevent the risk of electric shock, do not open the case. Installation and maintenance
should only be carried out by qualified technicians.
●Do not use the product beyond the specified temperature, humidity, or power supply
specifications.
●This product does not contain parts that can be maintained or repaired by users.
Damage caused by dismantling the product without authorization from BZBGEAR is not
covered under the warranty policy.
●Installation and use of this product must strictly comply with local electrical safety
standards.
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BZBGEAR BG-A1616MD PRODUCT MANUAL
Introduction
The BG-A1616MD is a digital audio processor which offers 12-ch dedicated balanced
MIC/linear inputs, 12-ch dedicated balanced linear outputs and 2 standard DANTE network
audio interfaces. The BG-A88M also supports an 8-ch programmable GPIO for a further 4
inputs or outputs.
This audio processor features adaptive feedback suppression, full-band adaptive
acoustic echo cancellation, and dynamic adaptive noise reduction technology. The Auto
Mixer function allows users to set a priority when multiple microphones are used.
The BG-A88M includes various digital signal processing features such as an Expander,
Equalizer, Compressor, Auto Gain Control, Limiter, High Pass Filter, Low Pass Filter, and
Delay. It also supports matrix routing, volume control, metering, scene control, and more. It
can provide a 48V phantom power supply for the 12 MIC inputs, has a 48KHz sampling
rate, and 24-bit A/D or D/A conversion.
The included control software is compatible with Windows 7/10/11 operating systems.
The unit can also be connected and controlled via the network using a standard RJ45
interface or via RS-232 control using serial commands.
Features
●12-ch balanced MIC/linear inputs and 12-ch balanced linear outputs
●Two standard DANTE network audio interfaces
●Adaptive feedback suppression function
●Full-band adaptive acoustic echo cancellation technology
●Dynamic adaptive noise reduction technology to reduce noise with signal levels up
to 18dB
●The Auto Mixer function can set the priority of multiple microphone inputs at once
●Digital signal processing modules such as Expander, Equalizer, Compressor, Auto
Gain Control, Limiter, High Pass Filter, Low Pass Filter, and Delay are included
●Audio matrix routing
●Volume control, meter, scene control, etc.
●48V phantom power supply for 12-ch MIC inputs
●48KHz sampling rate, 24-bit for A/D or D/A conversion
●8-ch programmable GPIO function
●Software compatible with Windows 7/10/11 and controlled standard RJ45 interface
●RS-232 serial commands control
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BZBGEAR BG-A1616MD PRODUCT MANUAL
Package Contents
①1 x BG-A1616MD with DANTE
②1 x AC 100~240V 50/60Hz Power Cord
③1 x 3-pin 3.81mm Phoenix Connectors (Male)
④1 x 10-pin 3.81mm Phoenix Connectors (Male)
⑤6 x 12-pin 3.81mm Phoenix Connectors (Male)
⑥2 x Mounting Ears (Rack Mount)
⑦8 x Machine Screws (KM3*4)
⑧1 x User Manual
Specifications
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Technical
Amplitude-frequency
(20Hz~20KHZ@+4dBu)
±0.2dB
THD+N (1KHZ@+4dBu)
≤ 0.01%
SNR (linear input)
≥ 90dB
Dynamic Range
≥ 100dB
Channel Level Difference
±0.5dB
Channel Isolation
≥ 80dB
Max Input Level
20dBu
Max MIC Gain
40dB
Input Impedance
20KΩ
Output Impedance
300Ω
Sampling Frequency
48KHZ
A/D and D/A Conversion
24Bit
Phantom Power
+48 VDC
Connection
Inputs
12 × Balanced MIC/LINE [3-pin phoenix connector] or 6 × Stereo
Audio [3-pin phoenix connector]
Outputs
12 × Balanced LINE [3-pin phoenix connector] or 6 × Stereo
audio [3-pin phoenix connector]
Controls
1 × LAN [RJ45]
1 × RS-232 [3-pin phoenix connector]
8 × GIPO [10-pin phoenix connector]
Digital Audio Interfaces
2 × Dante [RJ45]
Mechanical
Housing
Metal Enclosure
Color
Black
Dimensions
440mm (W)×250mm (D)×45mm (H)
Weight
3.37kg
Power Supply
AC 100 - 240V 50/60Hz
Power Consumption
11W (Max)
Operating Temperature
0°C ~ 40°C / 32°F ~ 104°F
Storage Temperature
-20°C ~ 60°C / -4°F ~ 140°F

BZBGEAR BG-A1616MD PRODUCT MANUAL
Device Interface Descriptions
Front Panel
No.
Name
Function Description
1
POWER LED
When the device is powered on, the red LED will
illuminate.
2
STATUS LED
When the device is running normally, the green STATUS LED
will flash.
Rear Panel
No.
Name
Function Description
1
MIC +48V
12 phantom power supply indicators.
2
MIC/LINE
INPUTS
12-ch balanced MIC/linear inputs, used for connecting
audio source devices via phoenix connectors.
3
OUTPUT
12-ch balanced linear outputs, used for connecting
Amplifiers or speakers via phoenix connectors.
4
DANTE
2 Standard DANTE network audio transmission interfaces.
5
LAN
Standard RJ45 interface for network connection.
6
RESET
Used for resetting the audio processor.
7
GND
Connect outer housing to the ground.
8
Power
Switch &
Power Port
Power switch and AC 100-240V power input port.
9
GPIO
8-ch programmable GPIO interfaces.
10
RS-232
Connect to PC or control system for transmitting RS-232
control commands.
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BZBGEAR BG-A1616MD PRODUCT MANUAL
Computer Control
Connection
The BG-A1616MD audio processor can be controlled via the provided software on a
Windows 7/10/11 machine. Use a category cable to directly connect to the LAN port of the
processor to your computer or via your local network using the following steps.
Step 1: Install the
“BZBGEARAudioMatrix16.exe” application
on the host computer and change the
computer’s IP address to ensure that IP
addresses of the host computer and the processor (Default IP address: 192.168.0.199,
Subnet mask: 255.255.255.0) are within the same network segment, as shown in the figure
below.
Step 2: Double-click the “BZBGEARAudioMatrix16.exe” icon to run the application on the
host computer.
Step 3: When the application is opened the HOME page will appear as shown below.
Step 4: Click the Network icon on the toolbar at the top .
If there is a red X at the top-right corner of the icon as shown in the figure above, it means
the host computer has not connected with the audio processor.
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BZBGEAR BG-A1616MD PRODUCT MANUAL
In such a case, click the icon and a dialog box with a list of IP addresses of all connected
devices will pop up, as seen in the following image.
Step 5: Choose the audio processor’s IP address and click CONNECT, then the processor
will be connected with the host computer. After connection, the CONNECT & SETUP box
(see the figure below) will pop up. You may close it if no such operation is needed.
If the audio processor has been connected with the host computer successfully, the
Network icon will appear as shown below with a green check in the top right corner.
Volume Meter
The volume meters will display the signal level of the various input & output volumes.
The meter has 3 colors (Red, Yellow, and Green) to denote signal levels for the volume
of the 16 inputs and 16 outputs. Red means that volume may be too high to be limited,
yellow indicates the volume is ideal, while green is within a reasonable lower range.
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BZBGEAR BG-A1616MD PRODUCT MANUAL
Input Settings
As shown below, clicking the INPUT module on the HOME page or the “IN” tab on
the menu bar will open the INPUT setting page.
The following figure shows the details of the INPUT setting page.
GAIN CONTROL: Indicates the GAIN level of the input signal which can be adjusted.
INVERT: Inverts the polarity of the signal on the input channel.
PHANTOM: Turns on 48V phantom power for the channel.
MUTE: Mutes the input channel, equivalent to clicking the letter M on the INPUT module
on the HOME page.
WHITE: Generates white noise for signal testing.
PINK: Generates pink noise for signal testing.
SINE: Generates a sinusoidal signal for testing and the meter below shows the frequency of
the sine wave.
FADER: Controls the signal level of the test signal.
You can set the signal parameters of an input channel by entering its “CHAN” number in the
menu on the right of the “IN” page. Audio process modules such as EXPANDER,
EQUALIZER, COMPRESSOR and AUTO GAIN CONTROL, are also available in the right
panel.
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BZBGEAR BG-A1616MD PRODUCT MANUAL
Expander
The Expander can extend the dynamic range of the input signal and is used to eliminate
noise under the threshold level.
As shown below, clicking the EXP module on the HOME page or the EXP button
on the right panel of the IN page to open the EXP setting page.
or
The following figure shows the expander module:
THRESHOLD: The level that the signal below it will be identified as noise and attenuated,
with a range of [-60.0, 0.0] dB.
RATIO: The compression ratio for signals below threshold, with a scale of [1.0, 20.0]. If the
ratio is 2.0, it means the signal below this threshold will be reduced to ½ of the original.
KNEE: The curve setting of the inflection point of the Expander, with a scale of [0.0, 20.0]. 0
indicates a hard knee; others indicate a soft knee.
ATTACK: The time required by the Expander to begin the Expander process once a signal
drops below threshold. Values are squashed between [1, 500] ms.
RELEASE: The time required by the Expander to stop the Expander process once a signal
is over threshold. Values are squashed between [1, 10000] ms.
G.R. (Gain Reduction) : Indicates the amount of gain attenuation of the input signal (in dB)
in the Expander process.
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BZBGEAR BG-A1616MD PRODUCT MANUAL
ACTIVE: Activates the EXP process. It is equivalent to clicking the green letter A at the EXP
module on the HOME page.
Clicking the pair of UP-DOWN arrows of the CHAN No. on the right panel of the IN page
will give you an option to select an input channel for the Expander configuration.
Equalizer
Each I/O channel has an 8-band parametric equalizer for voice processing, with adjustable
frequency, gain, and bandwidth for each channel.
As shown below, clicking the EQ module on the left panel of the HOME page or the
EQ button of the IN page to open the EQ setting page of the input channel.
or
As shown below, click the EQ module on the right panel of the HOME page or the
EQ button of the OUT page, you will enter the EQ setting page of the output channel.
or
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BZBGEAR BG-A1616MD PRODUCT MANUAL
The figure below shows the setting page for the EQ module.
TYPE: Provides 3 types of band/filters: High Pass, Low Pass, and Peak.
FREQUENCY: In High/Low Pass Filter, it refers to the cut-off frequency of the EQ band;
In Peak Filter, it refers to the center frequency point of the EQ band; with a scale of
[20, 20000] Hz.
GAIN: In High/Low Pass Filter it is fixed to 0dB; In Peak Filter it is between
[-24.0 to +18.0] dB.
Q FACTOR: The value is limited between [0.02, 50.00].
ON/OFF SWITCH: Each band has a switch. When pressed, the EQ function in this
band can be enabled or disabled.
ACTIVE: Activates the EQ process. The function is equivalent to clicking the letter A
on the EQ module on the HOME page.
A pair of UP/DOWN arrows on the right panel can be used to select an input channel for
the Equalizer configuration.
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BZBGEAR BG-A1616MD PRODUCT MANUAL
Compressor
The Compressor is used to reduce the dynamic range of the signal above a
user-determined threshold.
As shown below, click the COMP module on the HOME page or the COMP button
on the right panel of the IN page to open the Compressor settings.
or
The figure below shows the setting page of the compressor.
THRESHOLD: The level that the signal above it will be compressed, with a scale of [-60.0,
0.0]dB.
RATIO: The compression ratio for signals with level above threshold in a scale of [1.0, 20.0].
When the ratio sets to 2.0, it means that the signal with a level below that threshold will be
reduced to ½ of the original.
KNEE: The curve setting of the inflection point of the compressor, with a scale of [0.0,
20.0]. 0 indicates a hard knee; others indicate a soft knee.
ATTACK: The time required by the compressor to begin the Compressor process once a
signal is over the threshold, with a scale of [1, 500] ms.
RELEASE: The time required by the compressor to stop the Compressor process once a
signal drops below a threshold, with a scale of [1, 10000] ms.
MAKEUP GAIN: Since the compressor can reduce the gain level, the Makeup Gain allows
for a compensation of the gain level, with a scale of [-12.0, +18.0] dB.
G.R. (Gain Reduction): Indicates the amount of gain attenuation for the input signal (in dB).
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BZBGEAR BG-A1616MD PRODUCT MANUAL
OUT: The meter indicates the output signal level after the Compressor process.
ACTIVE: Activates the COMP process. The function is equivalent to clicking the letter A at
the COMP module on the HOME page.
A pair of UP/DOWN arrows on the right panel is also provided to select an input channel for
the Compressor configuration.
Auto Gain Control
Automatic Gain Control (AGC) is used to control the audio signal within a range so as to
extend the distance of pick-up sounds. The AGC process aims to attenuate excessive high
signal levels and boost low signal levels to target level.
As shown below, by clicking the AGC module on the HOME page or the AGC
button on the right panel of the IN page will open the AGC setting.
or
The following figure shows the setting page for the AGC module.
TARGET LEVEL: The desired output signal level, with a scale of [-20.0, 0.0] dB.
RATIO: The compression ratio of signals above the target level, with a scale of [1.0, 20.0].
If the value sets to 2.0, it means that signals above that target level will be amplified twice
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BZBGEAR BG-A1616MD PRODUCT MANUAL
of the original. Note, not all signals between the threshold and the target level are linearly
amplified by this ratio.
MAX GAIN: This will affect the smooth adjustment of the gain value of the signal between
the threshold and the target level, with a scale of [0.0, 12.0] dB.
THRESHOLD: Signals below the threshold will remain unchanged while those between
threshold and the target level will be amplified (at a ratio determined by the TARGET LEVEL,
RATIO and MAX GAIN). In order to ensure the proper function of the AGC process, the
Target Level must be set higher than Threshold. The threshold is recommended to be set
with a range of [-60.0, 0.0]dB.
IN: Meter indicates the detected signal level before the AGC process.
OUT: Meter indicates the output signal level after the AGC process.
ACTIVE: Activates the AGC process. The function is equivalent to clicking the green letter A
at the AGC module on the HOME page.
A pair of UP/DOWN arrows on the right panel are used to select an input channel for the
AGC configuration.
Auto Mixer
The AUTO MIXER is used to set the priority for MIC/linear inputs when 2 or more MIC/LINE
ports are connected at once.
As shown below, by clicking the AUTO MIXER section on the HOME page or the
AUTOMIXER tab on the menu bar will open the AUTO MIXER settings.
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BZBGEAR BG-A1616MD PRODUCT MANUAL
The figure below shows the setting page of the Auto Mixer module.
FADER: Each MIC input channel has a fader to adjust its signal level. It controls the mixed
volume on the input channel.
MUTE: Each MIC input channel has a MUTE button. Clicking it will enable users to mute
the channel.
PR (Priority): Sets the priority of the MIC input, 0 = lowest and 10 = highest priority.
Channels with a higher-priority will override the ones of lower-priority to be prioritized in
the auto mixer’s algorithm. If two or more channels are at the same priority, the channel
for the main speaker will be prioritized in the AUTO MIXER process.
AUTO: When pressed, the input MIC will be added to the auto mixing system..
METER: Indicates the output volume after the AUTO MIXER process.
OUT: Fader to control the output volume after the AUTO MIXER process.
Adaptive Feedback Cancellation
The Adaptive Feedback Cancellation (AFC, also known as Feedback Suppression) module
can detect and suppress a frequency point of acoustic feedback. The AFC module allows
you to detect and suppress frequency points of acoustic feedback for 8 bands. Parameters
of this module are configurable.
As shown below, clicking the AFC module on the HOME page or the AFC tab on the
menu bar, will open the setting page of the AFC module.
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BZBGEAR BG-A1616MD PRODUCT MANUAL
The following figure shows the AFC setting page in detail.
MAX DEPTH: The maximum amount of gain that the module can reduce, with a scale of
[-20.0, 0.0] dB.
BANDWIDTH: The bandwidth of the filter, with Narrow and Wide options.
RESET: When pressed, the filter will go back to its initial settings and the module will
re-detect the frequency points of the acoustic feedback.
FIX BAND: When pressed, fixed values of parameters, such as, Frequency, Gain, and
Width will be applied to configure the filter in a fixed band. Parameters are configurable.
FIX ALL: When pressed, all bands will be processed in a fixed mode or in USER-EDITING
mode.
BYPASS BAND: When pressed, the filter of the related band will be disabled.
BYPASS ALL: When pressed, the AFC module will be disabled, equivalent to pressing the
green letter A at the AFC module on the HOME page.
ANS LEVEL: The Adaptive Noise Suppression (ANS) module is used to suppress noises
with signal level up to 18dB. Clicking the ACTIVE button will give you the option to activate
this function.
Adaptive Echo Cancellation
The 48kHz full-band Adaptive Echo Cancellation (AEC) algorithm is used to eliminate
echoes coming from the far end in a video conference setting.
As shown below, clicking the AEC module on the HOME page or the AEC tab
on the menu bar will open the AEC configuration page.
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BZBGEAR BG-A1616MD PRODUCT MANUAL
The following figure shows the setting page of the AEC module.
LOCAL INPUT: Shows source signals that are available to the AEC process. AUTOMIXER
refers to mixed signals after the AUTOMIXER process.
NONLINEAR PROCESSING: Determines the audio effect for both ends of the
video conference, with soft, medium, and aggressive options.
ACTIVE: Activates the AEC process. The function is equivalent to clicking the green letter
A on the AEC module on the HOME page.
ANS LEVEL: The Adaptive Noise Suppression (ANS) function is used to suppress noises
with signal levels up to 18dB. Pressing the ACTIVE button enables the function.
REMOTE REFERENCE: Designates signals that are available for the AEC algorithm to
learn how to analyze and eliminate echoes.
As shown in the figure above, IN5 was chosen as a reference signal. In such a case, we
would need to connect the IN5 port of the processor to the video conference device. The
reference signal after the AEC algorithm will be sent to the far end via the connected device.
Users will also need to configure the selected input channels in the matrix routing. The figure
below gives an example of configuring the matrix routing.
Adaptive Noise Suppression
The 48kHZ full-band Adaptive Noise Suppression (ANS) algorithm can effectively increase
the signal to noise (S/N) ratio and suppress noises from appliances such as a fan or air
conditioner.
As shown below, pressing the ANS module on the HOME page or the ANS tab on
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BZBGEAR BG-A1616MD PRODUCT MANUAL
the menu bar, will open the ANS configuration page.
The following figure shows the details of the ANS setting page.
LOCAL INPUT: Shows source signals that are available to the ANS process. AUTOMIXER
refers to mixed signals after the AUTOMIXER process.
ANS LEVEL: The ANS module provides 12 noise suppression levels, ranging from 6dB to
18dB.
ACTIVE: Activates the ANS process. The function is equivalent to clicking the green letter
A at the ANS module on the HOME page.
Matrix Mixer
The Matrix Mixer allows you to freely choose the audio route via matrixing.
As shown below, clicking the MATRIX MIXER section on the HOME page or the MATRIX tab
on the menu bar will open the MATRIX MIXER configuration page.
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