AVN-TB10AR 10 Button Intercom with Advanced Talkback, AoIP Gateway

AVN LogoThe AVN-TB products are IP audio based talkback intercom units with advanced features, allowing them to be used in multiple applications. With 4-wire analogue inputs and outputs, as well as AoIP network audio connectivity, the AVN-TB units can be used with existing 4-wire systems and with new AES67 AoIP audio infrastructures. Additionally, all audio is sampled at 48kHz, meaning broadcast quality audio as standard.

RAVENNA (of which AES67 is a subset) allows for audio distribution across a network. The AVN range uses RAVENNA as the communication method, ensuring compatibility with other AES67 systems.

The AVN-TB10AR is a 10 button intercom allowing 10 other 'stations' to be defined, one per button, for communication. Communications can be made in Talk, Listen or duplex Talk/Listen modes to/from each station. Coloured LEDs in the buttons help to show the current action and there's also a Callback button for when you're unavailable to receive a call.

Stations can be located anywhere on the AoIP network and the use of Bonjour device discovery allows other stations to be quickly, and sometimes automatically, found.

The Page button is used to talk to all stations (or a defined list of stations) and Group Talk functions can be enabled to call particular groups of stations.

Two monitor buttons allow audio to be routed directly to the speaker, for example, to take an IFB feed or off-air transmission signal. Signals can be attenuated or mixed when a talkback input is received on the speakers or headphones.

Three user buttons can be programmed for different functions, such as for Group Talk.

The speaker is automatically muted when headphones are inserted and the volume level of the headphones, speaker and incoming sources can be controlled by a front panel rotary volume control, which shows the level using RGB LEDs around the knob.

Advanced acoustic echo cancellation and automatic mic gain control (AGC) of the built-in microphone ensure that there is no acoustic feedback between microphone and speaker.

Buttons are available for mic mute (cough) and speaker mute, which can be remotely controlled via GPI or network commands.

Each unit has a built-in web server where the majority of settings and configurations are made. The front panel OLED display can also be used to configure the unit, although more functionality is available via the web server. The web server uses a responsive design allowing it to be used on small screens such as smartphones and tablets.

The unit can act as a PTP master or slave clock and supports IEEE1588-2008 PTPv2 default and media profiles.

Front panel LEDs show AoIP network status, sync status, whether AGC is being used and the status of AC and DC power input. The brightness of the OLED display and LED indicators can be adjusted for low or high lighting conditions.

The unit has a front panel power button and dual power connectors - an IEC mains input and a 12V DC input, allowing the AVN-TB10AR to be used for both studio and mobile installations. Additionally, a secondary power source reduces the effect of power dropouts. In all cases, the unit monitors the status of both power sources and displays this on the front panel.

10 GPIOs (general purpose inputs/outputs) and a programmable relay output can be configured to indicate critical statuses of the unit, via the rear panel 15-way D-type connector, e.g. to indicate loss of DC power, or to indicate a button press.

Category: Audio Over IP Products.

Product Function: An advanced talkback/listen/call intercom unit to allow voice/audio communication between different areas in an installation or building complex.

Typical Applications: OB truck communications, theatre communications, inter-studio communications in a TV or radio station.

Features:

- 10 x illuminated Talk buttons plus Listen & Page buttons.
- Mic & headset inputs, headphone & speaker outputs with volume control.
- Sources from AoIP, balanced, 2 x unbalanced or S/PDIF digital inputs.
- Destinations to AoIP or balanced & unbalanced outputs on rear panel.
- Advanced echo cancellation & mic AGC to prevent acoustic feedback.
- Dual 1Gb lan ports & 1Gb SFP fibre port.
- 10 x user assignable GPIO ports.
- Dual AC & DC power supply.
- Front panel display providing source & destination information.
- Ethernet webserver & front panel control & configuration.
- Speaker & microphone mute buttons.
- Callback button with source display.