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Biamp Cornerstone

Voltera D - Tesira Configuration

Voltera D amplified loudspeaker controllers provide two options for configuration, management, and deployment.

  • A Voltera D can be programmed using Tesira software, either as a standalone solution or as part of a larger Tesira system.
  • Alternately, if the site consists of just Voltera D devices, Biamp's VenueTune software may be used for a streamlined, loudspeaker-centric approach built around Phases and Actions. 

This article provides additional information for configuring a Voltera D using theTesira software. If any of the following conditions apply, then Tesira software would be the appropriate choice.

  • There is a desire to create a custom-built system where the Voltera D hosts:
    • Expanders, and/or
    • TEC-X control panels, and/or
    • Custom-designed basic input processing (source selectors etc)
  • There are other Tesira devices included in the same system design as Voltera D and the desire is to have a single project file for it or to route AVB audio between the devices
  • Sources connected to Voltera D analog inputs need to be available to other devices that share the same media network.



Tesira software

Tesira programmers will find a familiar path to integrate Voltera D into their designs. Tesira software may be used to configure a stand-alone Voltera D, a system that consists of multiple Voltera D, or a mix of Voltera D and other Tesira devices, such as server class and expander class endpoints. 

Please see the Voltera D section of the Tesira Help File for more information on block dialogs and related programming options.

Clear Configuration

Votera D ships ready for configuration with Biamp's VenueTune software. It is running a default layout file to support this. This file cannot be retrieved using Tesira software and must first be cleared from the device before equipment table assignment and configuration from Tesira can be done.

default configuration.png

Proxy behavior and DSP overhead 

Voltera D can act as a proxy for Tesira expanders. Up to 5 expanders may be proxied from the 4-channel models and up to 9 on the 8-channel versions. A small amount of available DSP overhead in Voltera D allows for input/output expansion and routing even in systems where Voltera D is the only Tesira server class device.

DSP usage example.pngTesira compilation example #3.pngTesira compilation example #4.png

The below table provides an approximation of the default DSP usage and overhead. It is recommended to create the Tesira layout file ahead of time to determine the needed DSP usage for a project. If the DSP requirements exceed the available overhead in Voltera D, another Tesira server class device, such as a TesiraFORTE or Server IO may be added to the system design.

Voltera Channel Count DSP in use (failover / analog input mode) Available DSP (failover / analog input mode)
4 channel 96.4% / 93.9% 3.6% / 6.1%
8 channel 95.2% / 92.6% 4.8% / 7.4%

Input expansion vs failover

Voltera D analog inputs can be configured as failover to network media, or as analog input expansion for distributed sources. Input expansion allows for analog sources connected directly to one Voltera D to be routable within Tesira to other outputs in the system. This may be other Voltera Ds, or other Tesira devices capable of receiving audio over the appropriate media network

Input Expansion example

Tesira compilation example #5.pngTesira compilation example #2.png

Failover example

The Input Priority Routing section includes options to configure failover. From the Tesira help file:

Input priority routing allows the user to select the priority routing of physical input in a failover scenario. By default, each channel will be set as 1:1 priority routing. Digital is routed from the port on the software block, Analog is routed from the back panel of the device (analog inputs). Configure the routing as desired for each channel using the Digital / Analog toggle and analog routing drop down. Choosing an Analog Input option from the drop-down on a channel will select that input as the failover for the input on the current channel. In scenarios where failover is not desired, choose the analog toggle option and select the "none" option from the drop-down menu.


Loss of digital media on any channel will trigger failover for all channels configured with an analog failover channel.

Dante failover can be detected when a loss of a link to the media network is detected, or loss of the Dante subscription. 

Pre Dante failover

Channels 1-4 are receiving audio over Dante, with a backup analog source connected to input 1 of the Voltera D.

Dante pre failover.png

Post Dante failover

Voltera D detects a loss of Dante flow and fails over to the defined analog input. 

Dante channel subscription failed.png

AVB failover will occur when loss of AVB stream is detected.

Pre AVB failover

Voltera D is receiving AVB streams from an EX-UBT and EX-IO. 

AVB pre failover.png

Post AVB failover

Voltera D detects an inactive AVB stream and fails over to the defined analog input. 

AVB stream failover.png

Tesira Presets

Tesira systems consisting of just Voltera D devices are capable of supporting Tesira configurations with presets. Presets can be used to change routes from inputs to outputs, adjust levels and muting, as well as aid in managing logic.

It should be noted that the Votlera D block itself cannot be added to a preset. There is a DSP signal chain inside the block that is managed from the block's control dialog. Any changes to routes or levels can be done in mixers, routers, level controls etc... that are ahead of the Voltera D output block in the signal chain.

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