infobit Dante iSound 44D User manual

INFOBIT AV www.infobitav.com [email protected]
1
iSound 44D/88D/1616D
4x4, 8x8 and 16x16 Digital Sound Processor w/ Dante
User Manual V2.0

INFOBIT AV www.infobitav.com [email protected]
2
1. Technology .................................................................................. 6
1.1 Introduction ..................................................................................................................................... 6
1.2 Audio Input Section ......................................................................................................................... 6
1.3 Audio Output Section ...................................................................................................................... 7
1.4 Float Point DSP ................................................................................................................................ 7
1.5 Audio Flow ....................................................................................................................................... 9
2. Hardware ................................................................................... 10
2.1 Safety Instructions ......................................................................................................................... 10
2.2 Audio Wiring Reference ................................................................................................................. 11
2.3 Specifications ................................................................................................................................. 12
2.4 Mechanical Data ............................................................................................................................ 13
2.5 Front Panel .................................................................................................................................... 13
2.5.1 iSound 44D Front Panel .......................................................................................................... 13
2.5.2 iSound 88D/1616D Front Panel .............................................................................................. 14
2.6 Rear Panel ...................................................................................................................................... 15
2.6.1 iSound 44D Rear Panel ............................................................................................................ 15
2.6.2 iSound 88D/1616D Rear Panel ................................................................................................ 16
3. Software .................................................................................... 18
3.1 Software Installation ...................................................................................................................... 18
3.2 Using the Software ........................................................................................................................ 19
3.3 Custom edit processing module .................................................................................................... 19
3.4 Audio Module Parameters ............................................................................................................. 20
3.4.1 Input Source ............................................................................................................................ 21
3.4.2 Expander ................................................................................................................................. 22
3.4.3 Compressor & Limiter ............................................................................................................. 23
3.4.4 Auto Gain Control ................................................................................................................... 25
3.4.5 Equalizers ................................................................................................................................ 26
3.4.6 Figure Balancer ....................................................................................................................... 27

INFOBIT AV www.infobitav.com [email protected]
3
3.4.7 Feedback Inhibition ................................................................................................................. 28
3.4.8 Noise Gate ............................................................................................................................... 30
3.4.9 Ducker ..................................................................................................................................... 31
3.4.10 Spl ......................................................................................................................................... 32
3.4.11 AutoMixer ............................................................................................................................. 33
3.4.12 Acoustic Echo Cancellation ................................................................................................... 36
3.4.13 Noise Suppression ................................................................................................................. 36
3.4.14 Matrix .................................................................................................................................... 37
3.4.15 High & Low Pass Filter ........................................................................................................... 37
3.4.16 Delay ..................................................................................................................................... 38
3.4.17 Output ................................................................................................................................... 38
3.4.18 Camera Tracking ................................................................................................................... 39
3.4.19 USB Soundcard ...................................................................................................................... 41
3.5 Setting Menu ................................................................................................................................. 42
3.5.1 File Menu ................................................................................................................................ 42
3.5.2 Device Setting ......................................................................................................................... 42
3.5.3 GPIO Setting ............................................................................................................................ 43
3.5.4 Group Setting .......................................................................................................................... 45
3.5.5 Panel Setting ........................................................................................................................... 46
3.5.6 User Interface ......................................................................................................................... 49
3.5.7 Mobile Device ......................................................................................................................... 50
3.5.8 Dante Setting .......................................................................................................................... 52
3.5.9 Help Menu .............................................................................................................................. 56
4. Dante Audio .............................................................................. 57
4.1 Dante Overview ............................................................................................................................. 57
4.2 Dante Requirements ...................................................................................................................... 58
4.3 Dante Network Design ................................................................................................................... 58
4.4 Dante Modes ................................................................................................................................. 60
4.5 Dante Controller ............................................................................................................................ 61
4.6 Dante Virtual Soundcard ............................................................................................................... 61

INFOBIT AV www.infobitav.com [email protected]
4
5. Control ....................................................................................... 62
5.1 Protocol format ............................................................................................................................. 62
5.1.1 0x21: parameter control ......................................................................................................... 63
5.1.2 0x22: obtain parameter. ......................................................................................................... 63
5.1.3 0x13: Switch presets ............................................................................................................... 63
5.1.4 0x74: Other control ................................................................................................................. 63
5.2 Dante Routing (0x6e) ..................................................................................................................... 65
5.3 Serial Port-to-UDP (RS232 To UDP) ............................................................................................... 65
5.4 ASCII Control Commands ............................................................................................................... 66
5.4.1 Input volume control and acquisition ..................................................................................... 66
5.4.2 Output volume control and acquisition .................................................................................. 66
5.4.3 Phantom power supply control and acquisition ..................................................................... 67
5.4.4 Input Mute Control and Acquisition ....................................................................................... 67
5.4.5 Output mute control and acquisition ...................................................................................... 67
5.4.6 Control and acquisition of sensitivity ...................................................................................... 67
5.4.7 Control acquisition of matrices ............................................................................................... 67
5.4.8 Invocation and Saving of Scenarios ......................................................................................... 67
5.4.9 Input level acquisition ............................................................................................................. 68
5.4.10 Output level acquisition ........................................................................................................ 68
5.4.11 System Mute Control and Acquisition .................................................................................. 68
5.4.12 Settings and getting the channel name of the input and output .......................................... 68
5.4.13 Input and output inverting control and acquisition .............................................................. 68
5.4.14 Input and output step control and acquisition ..................................................................... 68
5.4.15 Input and output link control and acquisition ...................................................................... 68
5.4.16 Control and acquisition of signal generators ........................................................................ 69
5.4.17 Restore factory settings control ............................................................................................ 69
5.4.18 Scene Reset Control .............................................................................................................. 69
5.4.19 Get the name of the scene that is set arbitrarily .................................................................. 69
5.4.20 Module name:input,output|mixer ....................................................................................... 69
5.4.21 Format the instruction: ......................................................................................................... 70

INFOBIT AV www.infobitav.com [email protected]
5
5.4.22 Get the instruction format .................................................................................................... 70
6. FAQs ........................................................................................... 70
1. How to restore factory setting? ....................................................................................................... 70
Appendix A: Module ID Distribution .................................................................................................... 71
Appendix B: Module Parameter Types (1) ........................................................................................... 72
Appendix B: Module Parameter Types (2) ........................................................................................... 73

INFOBIT AV www.infobitav.com [email protected]
6
1. Technology
1.1 Introduction
The iSound 44D/88D/1616D are equipped with several core technical features to facilitate the work of
audio engineers. DSP-based remote audio hardware is routed, processed, and controlled via computer.
This Manual mainly introduces the techniques used to achieve the goal.
The iSound DSP Controller is a Windows-based application, which is used to conduct configuration and
control on DSP hardware. The iSound DSP Controller has 16 built-in presets, and the modules and
sequences for each preset can be flexibly designed in accordance with the designer's requirements.
After the design is finished, it can be saved for future use. The sequences and parameters of DSP
Controller's built-in processing modules accord to most of the application scenarios without any
change.
The iSound DSP Controller is a fully functional application that includes editable processing modules,
parameter adjustment, and peripheral accessory settings such as RS232, RS485, and drag and drop
panel configuration. The most interesting feature is the user interface, which allows engineers to
create custom interfaces that can be edited by integrators and operated by on-site technicians or end
users who do not understand the technology. Advanced security features allow end users to access
only the controls allowed by engineering or system designers.
1.2 Audio Input Section
The iSound DSP supports 4x4 (Model: iSound 44D), 8x8 (Model: iSound 88D) and 16x16 (Model:
iSound 1616D) fixed analog audio inputs/outputs, which can be connected via removable balanced
phoenix connectors. The analog input section supports microphone or line-level signals whose nominal
levels are 0dBu, 10dBu, 20dBu, 30dBu, 40dBu and 43dBu. +48VDC phantom power can be adopted for
each input.
Preamp gain and phantom power can be conveniently controlled via DSP Controller.

INFOBIT AV www.infobitav.com [email protected]
7
A/D Technical Indicators:
• Sampling rate: 48kHz
• THD+N:≤0.001%@4dBu（A-weighting）
• Dynamic range: 110dB
• Audio format: 24Bit MSB TDM
1.3 Audio Output Section
Phase 1 of analog output section refers to D/A converter (DAC). DSP adopts advanced 24-bit 256X
sampling converter. Just like A/D converter, it also uses multi-bit architecture for broader dynamic
range; in the meantime, it is also equipped with excellent distortion just like regular digital unit analog
converter. Unit gain (0dB) is set via volume control, and the analog output section is corrected as
+4dBu with 20dB headroom. That is to say, 0dBFS digital signal is equivalent to +24dBu output signal. If
other signal levels are required, you may change the volume to achieve it.
D/A Technical Indicators:
• Sampling rate: 48kHz
• THD+N:≤0.001%@4dBu（A-weighting）
• Dynamic range (A-weighted): 112dB
• Audio format: 24Bit MSB TDM
1.4 Float Point DSP
The iSound DSP device adopts analog device SHARC DSP, enabling 32-bit and 40-bit floating-point
processing, which can be compared to 40-bit floating-point processing of other devices. Floating-point
processing provides prominent advantages for the users in terms of sound quality and usability.
Fixed-Point Processing Limitations
Fixed-point processing has its own disadvantages. If there is a significant change in gain, data loss or
more severe situation may occur, including clipping distortion. For example, for the processing of 24-
bit fixed point-based audio signal, in some cases, if you attenuate the signal to 42dB, the new signal
only includes 17-bit information. Due to gain attenuation, 7-bit information will get lost forever. More
worse is the clipping distortion. For a signal nearly close to 0dBFS, the signal will be clipped at 0dBFS
and the audio distortion will occur. Even if the signal level is adjusted to below 0dBFS through post-
regulation, the clipping has occurred, and the distortion still exists. Fixed point processing can help to
create some headroom above 0dBFS. By doing so, some bits must be abandoned. For example, if a
12dB (2 bits) headroom is created, a 24-bit system only has 22 bits.
Floating-Point Processing
In the contrary, by taking advantage of floating-point processing, no matter what the signal level is, all
available bits are uniformly distributed to the signals. Basically, the floating points use some bits as

INFOBIT AV www.infobitav.com [email protected]
8
indexes to set up general signal level and distribute the remaining bits to signals with independently
stored level. As a result, no matter what kind of level (from -200dB and 200dB below to 0dBFS above,
the stored signal's accuracy is optimized without clipping distortion. SHARC provides 32-bit and 40-bit
accurate processing; through 32-bit processing, 25 bits are distributed to storage signals no matter
what its signal level is. This means that, based on at least 1-bit low level signal, its accuracy is always
significantly superior to 24-bit fixed point processing. Through expanded 40-bit accurate processing,
33-bit storage signal can be achieved.
Practical Significance
What's the practical significance of floating-point processing for the users? The gain stages between
multiple modules can be ignored. If the signal level of a module is reduced by 50dB and is then
restored to its original value through another processing, data loss will not occur. In the fixed-point
system, the users must check other signal levels before sending it to A/D converter because all digital-
to-analog converters adopt fixed points. In DSP system, if you notice that your signal has been clipped
before it is outputted and transmitted to the digital-to-analog converter, you may close it off
immediately at the output section to correct the situation. By using the fixed-point system, you must
search each processing module to find the clipping source.

INFOBIT AV www.infobitav.com [email protected]
9
1.5 Audio Flow

INFOBIT AV www.infobitav.com [email protected]
10
2. Hardware
2.1 Safety Instructions
Safety Instructions
Important safety instructions:
• Read these instructions.
• Keep these instructions well.
• Pay attention to all warnings.
• Follow all instructions.
• Please keep the device away from water. The device shall not be exposed to water drips or
water splashes; make sure that there is no object with liquid near the device, such as vase.
• Please use dry cloth to clean up the device.
• Please do not block the vent. Please get the device installed based on the manufacturer's
instructions.
• Please do not install any heat source, such as radiator, heat register, furnace or other devices
(including amplifiers) that generate heat.
• Please adopt protective grounding connection to connect the device to the power socket.
Please do not use polarized plug or grounding plug. A polarized plug has two leaves, and one is
wider than another. A grounding plug has two leaves and a third ground terminal. The wide leaf
or third ground terminal can provide safety for the users. If the plug provided does not accord
to the power socket, please contact the electrician to replace the old socket with a new one.
• Protect the power cord so that it will not be tramped or protruded, especially the plug, the
socket and the connections of cord and device.
• Please use the accessories designated by the manufacturer.
• Please only use the cart, the tripod, the holder or the desk designated by the manufacturer or
sold together with the device. When using the cart, please take care with the mobile
cart/device to avoid injury from rollover.
• Please unplug the device during a thunderstorm or during the idle period.
• Please find qualified maintenance personnel to deal with all maintenance problems. When the
device gets damaged in any manner, the maintenance is required. For example, the power cord
gets damaged, the liquid will spill over or the object falls into the device; the device is exposed
to the rainwater or moisture; the operations are not correct, or the device falls off.

INFOBIT AV www.infobitav.com [email protected]
11
The lightning logo (an equilateral triangle with an arrow) is used to make the users aware of the
uninsulated "dangerous voltage" within the product shell, which may cause electric shock. An
equilateral triangle with an exclamation mark is adopted to make the users understand the importance
of the operations and maintenance instructions given in the appendixes attached to the product.
Warning: To prevent electric shock, please do not use a polarized plug provided by a device with an
extension cord. The socket outlet cannot be inserted except for sharp end.
2.2 Audio Wiring Reference
Balanced Connection
Any of these interfaces may occur on both sides of the connection.
Note: For one XLR interface, the female connects to the output device and the male connects to the
input device.
Unbalanced Connection
RCA interface and 1/4-inch TS interface are unbalanced interfaces. A multi-stand shielding conductor
may be installed on both ends of unbalanced connection.

INFOBIT AV www.infobitav.com [email protected]
12
2.3 Specifications
Processor
ADI SHARC 21489
Sampling rate/Digitalizing bit
48K/24bit
Input Gain
iSound 44D: 0/6/12/18/24/30/36/42/48dB
iSound 88D/1616D:
0/3/6/9/12/15/18/21/24/27/30/33/36/39/42/45/48
dBu
Phantom Power
48V
Frequency Response (20~20KHz)
±0.5dB(iSound 44D); ±0.3dB (iSound 88D/1616D)
Maximum Level
+18dBu
THD + Noise
0.001%@4dBu(A-weighted)
Input Dynamic Range
110dB
Output Dynamic Range
112dB
Channel Isolation @1KHz
108 dB
Input Impedance (Balanced Connection)
5.4KΩ
Output Impedance (Balanced Connection)
600Ω
System Delay
<3ms
Working Power
AC110~240V 5Hz-60Hz (iSound 88D/1616D)
DC12V ( iSound 44D)
PoE: 48V
Maximum Power Consumption
<40W
Dimensions (Width x Depth x Height)
215 x 162x 44.5mm (iSound 44D)
480 x 260 x 44.5mm (iSound 88D/1616D)
Shipping Weight
2kg (iSound 44D); 4kg (iSound 88D/1616D)

INFOBIT AV www.infobitav.com [email protected]
13
2.4 Mechanical Data
Rack Mounting:
• iSound 44D: half-U size. 1U (Dimensions (width x depth x height：215 x 162x 44mm).
• iSound 88D/1616D: 1U (width x depth x height: 18.91ʺ x 9.5ʺx 1.72ʺ / 480 x 240 x 44mm). The
reserved head space is not included in the depth.
An additional space at least 3 inches shall be reserved for the connection of rear panel. The reserved
depth depends on the wire used and the connection mode.
Electrical Property:
• iSound 44D: DC12V/PoE48V
• iSound 88D/ 1616D: Maximum universal input power: 110-240 VAC, 50/60 Hz, 40 W.
Ventilation: The recommended highest operating ambient temperature is 30℃ / 86℉.
Make sure that there is no blockage on both sides (a gap (at least 5.08cm, 2 inches) shall be reserved).
Please do not cover the thermoset of the device with newspapers, tablecloth, curtain and other
objects.
Shipping Weight:
• iSound 44D: 2kg
• iSound 88D/1616D: 8.8 lbs. (4 kg)
2.5 Front Panel
2.5.1 iSound 44D Front Panel
Model: iSound 44D

INFOBIT AV www.infobitav.com [email protected]
14
1 Power: LED power supply indicator.
2 RUN: Equipment operating status indicator.
3 Channels: The Input/ output channels indicators.
4 USB AUDIO: USB soundcard (1-in-1-out), which can be used to achieve recording function.
2.5.2 iSound 88D/1616D Front Panel
1 Power: LED power indicator.
2 SYS: The operation system status indicator of the device.
3 Channels: The Input/ output channels indicators.
4 LCD screen: Showing IP address and more information.
5 USB AUDIO: USB soundcard (1-in-1-out), which can be used to achieve recording function.

INFOBIT AV www.infobitav.com [email protected]
15
2.6 Rear Panel
2.6.1 iSound 44D Rear Panel
Model: iSound 44D
1 POWER: DC12V.
2 ETHERNET: By connecting this network port, the client computer can debug and monitor the
equipment.
3 Dante: Dante Primary and Secondary, support 4x4 I/O channels. Supports Dante/ AES67/ PoE.
4 INPUT: 4x input channels. Can connect microphone, DVD and other devices.
5 OUTPUT: 4x output channels. Can be connected to power amplifiers, active speakers, and other
equipment.
6 RS232+RS485: connect to the control terminal or central control equipment.

INFOBIT AV www.infobitav.com [email protected]
16
2.6.2 iSound 88D/1616D Rear Panel
Model: iSound 88D
Model: iSound 1616D
1. POWER: connect to 110V- 240V AC power supply, and the rocker switch controls the power supply
of the processor.
2. ETHERNET: By connecting this network port, the client computer can debug and monitor the
equipment.
3. RS232+RS485: connect to the control terminal or central control equipment.
4. GPIO: 8x definable input/output logic level control ports, driven by the control module in the device
design. It can be set in the software to meet the output level (0V or 5V) after internal conditions
trigger; Or input level triggering (0V or 5V) to control corresponding internal functions.

INFOBIT AV www.infobitav.com [email protected]
17
5. OUTPUT: can be connected to power amplifiers, active speakers, and other equipment.
6. INPUT: can connect microphone, DVD and other devices.
7. Dante: Dante Primary and Secondary, support 8x8 or 16x16 I/O channels.

INFOBIT AV www.infobitav.com [email protected]
18
3. Software
3.1 Software Installation
• A Windows PC with a 1 GHz or higher
processor.
• Windows 7 or later.
• 1 GB of free storage space.
• 1024 x 768 resolution.
• 24-bit or higher color.
• 2 GB or more of memory.
• Network (Ethernet) interface.
• CAT5 cable or existing Ethernet network.
The audio processor has built-in control software, which can be downloaded quickly by accessing the
IP address of the audio processor. Enter the IP address of the device in the browser address bar to
access the audio processor, find the download link and download the installation software to the local
to complete the installation.
The factory default IP address of the device is: 169.254.10.227 Subnet mask: 255.255.0.0, please add
the address of this network segment in the PC first, so that the device can access normally. After the
device is started, enter "http:/ /169.254.10.227/".

INFOBIT AV www.infobitav.com [email protected]
19
Before installing the PC software, please make sure that a newer version of Microsoft .Net Framework
has been installed on the PC.
Note: If the download and installation of the software fails, please use IE or Google Chrome to try, or
enter the browser settings and cancel the browser download pop-up prompt to try again.
3.2 Using the Software
After enabling the software, the main menu is shown as below:
Click the button in the right corner of the main menu and find all processors on the
network automatically. The user may connect to the designated processor based on their own needs;
after the connection, the indicator will flash, and one processor supports simultaneous connection and
control of up to four users.
Restore default scene
Factory reset
3.3 Custom edit processing module
Click on the edit button, input or output channel processor module right-click selection, edit dialog box,
can replace the current processing module, can delete, copy and other operations, edit good click
upload to the host.

INFOBIT AV www.infobitav.com [email protected]
20
Note: when the CPU display more than 100 will turn red, this time the resource cannot be uploaded to
the host, need to be re-edited.
(Configurable software)
At the same time, we also support functions such as online editing for up to 8 devices, saving
configurations to devices (uploading to devices), restoring presets, restoring factory settings, saving
presets, and loading presets.
3.4 Audio Module Parameters
There are two regulation modes for module parameters: firstly, directly click the input or output
channel modules, and enter the parameter interface of the module; secondly, right click the module
and the configuration interface will pop out. The first regulation mode is adopted for the following
module parameters.