SYNQ DBT-44 Analog-Dante Network Audio Bridge
Product Information
The DBI-04/44 I/O INTERFACE and DBT-04/44 I/O INTERFACE are devices that support the OSC PROTOCOL instruction set. OSC (Open Sound/System Control) is a communication protocol that allows interaction between computer software, sound synthesizers, and other multimedia devices. It is designed as a successor to the MIDI control protocol and offers advantages such as increased speed and flexibility.
The devices come with an API (Application Programming Interface) that provides a set of instructions in the form of URLs. These instructions allow developers to write software that connects different systems or components without needing to understand the underlying complexity. The API simplifies programming and accelerates development.
The devices offer various controls for general settings, channel processing, and EQ-processing. These controls can be accessed using specific URLs and support different data types such as floats, integers, and booleans. Each control has a defined range of values that can be set to achieve the desired audio processing.
Product Usage Instructions
Set Up
To set up the devices, follow these parameters:
| Parameter | Protocol | Incoming Port | Outgoing Port | Incoming IP | Outgoing IP |
|---|---|---|---|---|---|
| Description | UDP | 9000 | 9001 | Broadcast/Unicast | Broadcast/Unicast |
Note: Responses to commands are in unicast.
General Controls
Use the following URLs to control general settings:
| URL | Type | Description |
|---|---|---|
| /ping | – | Sends back the same command to test if a device is on the network. |
| /sync | – | Get all the current settings from the device. |
Controls for Channel Processing
Use the following URLs to control the processing of each channel:
| URL | Type | Range | Description |
|---|
Controls for EQ-Processing
Use the following URLs to control EQ processing for each EQ point:
| URL | Type | Range | Description |
|---|
For more information and useful OSC software, visit www.synq-audio.com.
INTRODUCTION
Thank you for buying this Synq® product.
This document is only a brief introduction and mainly describes the OSC Protocol instructions supported by the Synq® DBI and DBT Dante network audio bridges.
This is NOT a full course on OSC, the internet is already full of very useful information about OSC.
To take full advantage of all possibilities of the Synq® DBI and DBT Dante network audio bridges, please download and read the separate operating instructions very carefully. Also the webpages of the DBI and DBT have an intuitive help function that explains all functions easily.
REVISION HISTORY
This is a work in progress, so check the Synq website regularly for new updates!
| Revision | Date
(dd/mm/yyyy) |
Description |
| V0.1 | 23/08/2020 |
|
| V0.2 | 30/08/2020 |
|
| V1.0 | 07/02/2022 |
|
WHAT IS OSC ?
Open Sound/System Control (OSC) was created as a successor to the MIDI control protocol. It enables communication between computer software, sound synths and other multimedia devices that support OSC. Its advantages over MIDI include:
- An open-ended and dynamic URL-style symbolic naming scheme
- Symbolic and high-resolution numeric argument data
- Pattern matching language to specify multiple recipients of a single message
- High resolution time tags and “bundles” of messages whose effects must occur simultaneously.
The protocol is also not bound by specific hardware (i.e. MIDI cables and ports) and can be transferred across any network connection, even remotely via the internet.
This makes OSC much more powerful than MIDI, but due to its open-ended specification, both the OSC client (sends OSC requests) and the OSC server (receives and executes requests) must be separately configured, unlike MIDI which is essentially “Plug & Play”.
For more general information about OSC, check these links:
- OSC Wikipedia page
- Official OSC homepage
SET UP
| Parameter | Value | Description |
| Protocol | UDP | |
| Incoming port | 9000 | |
| Outgoing port | 9001 | |
| Incoming IP | Broadcast/Unicast | |
| Outgoing IP | Broadcast/Unicast | Responses to a command are in unicast. |
API
An API is a set of instructions (often in the form of URLs), written by the developer, to give other developers a common standard method for writing software that connects different systems or components of a system, without having to understand all the complexity. In short: an API reduces the complexity and greatly increases the speed of programming.
Below you can find the current set of URLs and descriptions for each function that can be controlled on the Synq® DBI and DBT units, using OSC.
If a URL is sent without a parameter value, the command will be interpreted as a “get”: the device will return the current state.
Each URL ends with “/<device_ name>”: this allows multiple devices on a network to be accessed via broadcasting.
Each command can also work with the type as “float”.
GENERAL CONTROLS
| URL | Type | Range | Description |
| /ping | – | – | Sends back the same command to test if a device is on the network |
| /sync | – | – | Get all the current settings from the device. |
CONTROLS FOR THE PROCESSING OF EACH CHANNEL
| URL | Type | Range | Description |
| /gain/input/<input_index>/<output_index> | float | -120 – 10 | Gain for the input matrix |
| /gain/output/<output_index> | float | -120 – 10 | Gain for the outputs |
| /trim/<input_index> | float | -10 – 10 | Trim value for the inputs |
| /phase/input/<input_index> | bool | – | Input phase state |
| /phase/output/<output_index> | bool | – | Output phase state |
| /mute/input/<input_index> | bool | – | Input mute state |
| /mute/output/<output_index> | bool | – | Output mute state |
| /eqenable/input/<input_index> | bool | – | Input eq enable state |
| /eqenable/output/<output_index> | bool | – | Output eq enable state |
| /pad/<input_index> | bool | – | Input pad state – only for analog inputs |
| /48v/<input_index> | bool | – | Input 48v state – only for analog inputs |
| /delay/<output_index> | float | 0 – 100 | Delay for the analog outputs in ms |
| /comp/enable/input/<input_index> | bool | – | Input compressor enable state |
| /comp/enable/output/<output_index> | bool | – | Output compressor enable state |
| /comp/threshold/input/<input_index> | float | -135-21 | Input compressor threshold |
| /comp/threshold/output/<output_index> | float | -135-21 | Output compressor threshold |
| /comp/ratio/input/<input_index> | float | 1-100 | Input compressor ratio |
| /comp/ratio/output/<output_index> | float | 1-100 | Output compressor ratio |
| /comp/softknee/input/<input_index> | bool | – | Input compressor softknee state |
| /comp/softknee/output/<output_index> | bool | – | Output compressor softknee state |
| /comp/attack/input/<input_index> | Int32 | 1-500 | Input compressor attack in ms |
| /comp/attack/output/<output_index> | Int32 | 1-500 | Output compressor attack in ms |
| /comp/hold/input/<input_index> | Int32 | 1-500 | Input compressor hold in ms |
| /comp/hold/output/<output_index> | Int32 | 1-500 | Output compressor hold in ms |
| /comp/release/input/<input_index> | Int32 | 1-2000 | Input compressor release in ms |
| /comp/release/output/<output_index> | Int32 | 1-2000 | Output compressor release in ms |
CONTROLS FOR EQ-PROCESSING
Control parameters for each of the EQ points. The <index> (a value from 0 to 9) specifies the EQ point
| URL | Type | Range | Description |
| /eq/gain/input/<input_index>/<index> | float | -20 – 20 | Gain, note that an HPF or LPF has no gain |
| /eq/gain/output/<output_index>/<index> | float | -20 – 20 | Gain, note that an HPF or LPF has no gain |
| /eq/freq/input/<input_index>/<index> | integer | 20 – 20000 | Frequency |
| /eq/freq/output/<output_index>/<index> | integer | 20 – 20000 | Frequency |
| /eq/q/input/<input_index>/<index> | float | 0.1 – 20 | Q factor, note that an HSF, LSF, LPF or HPF has a range of 0.1 – 2. |
| /eq/q/output/<output_index>/<index> | float | 0.1 – 20 | Q factor, note that an HSF, LSF, LPF or HPF has a range of 0.1 – 2. |
| /eq/enable/input/<input_index>/<index> | bool | – | State of a specific point |
| /eq/enable/output/<output_index>/<index> | bool | – | State of a specific point |
INTERNET LINKS TO USEFUL OSC-SOFTWARE
Below is a list with some links to interesting OSC software to build your own apps or just to learn more about using OSC. Some are freeware, others are paying: the choice is yours.
- www.hexler.net/touchosc (The ultimate software to create your own OSC apps)
- www.oscpilot.com/ (Functionality comparable with Touch OSC)
- www.qlab.app/ (Show control software, only for MAC)
- www.liminalet.com/zoomosc (Used for OSC communication between ZOOM and Synq DBI / DBT)
- www.ableton.com/ (Well-known music production software with OSC support)
- www.openstagecontrol.ammd.net/ (Free OSC software: not simple to use but with a lot of possibilities)
- www.elgato.com (Customizable hardware keys to send OSC commands to the DBI / DBT)
CONTACT US
At any time you can contact us to report any syntax errors, bugs, or other problems. Also, we are of course open to suggestions to improve our equipment.
Please contact us using the links:
All information in this document is subject to change without notice.
You can download the latest version of this document from our website: www.synq-audio.com
MAILING LISTZ
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Documents / Resources
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SYNQ DBT-44 Analog-Dante Network Audio Bridge [pdf] User Manual DBT-44, DBT-04, DBI-44, DBI-04, DBT-44 Analog-Dante Network Audio Bridge, DBT-44, Analog-Dante Network Audio Bridge, Dante Network Audio Bridge, Network Audio Bridge, Audio Bridge, Bridge |
