AVnu Alliance Developing Endpoint Interoperability-Testing Standards

Manufacturers want a protocol to send digital audio and video to every endpoint
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Now that the AVnu Alliance, the organization tasked with creating interoperability-testing standards for digital audiovisual devices, has produced such standards for switches, the alliance has begun work on developing similar standards for endpoint devices, says a company official working with the group.
Chad Wiggins, a category director for wired microphones systems for Shure Inc. and who is attending InfoComm13, tells Government Video that with the completion of the certification and interoperability standards for switches, “the next step” for the AVnu Alliance will be to establish conformance and interoperability standards for the endpoint devices.
The endpoint devices the conformance and interoperability standards are being developed for include microphone systems, loudspeakers, amplifiers, consoles, projectors and display systems, Wiggins said. The reason the conformance and interoperability testing standards are being developed is manufacturers of audiovisual equipment want a common protocol that can send digital audio and video across the network to every endpoint. “But that can’t be done with the audio/video bridging that’s currently on the market,” he said.
In January, the AVnu Alliance issued the conformance and interoperability testing standards for switches. Overseeing the development of those standards was Bob Noseworthy, chief engineer and manager of the AVnu Consortium at the University of New Hampshire. The standards are to “validate” the interoperability of devices used for webstreaming, he said.
The interoperability of audio/video bridging will be a major advantage to providers of webstreaming products and services, Noseworthy said. As more streaming devices get adopted into new installations, existing IEEE standards may enable a single signal to stream to however many audio and video streams the user wishes to support, he said. However, it is important to have “a solid expectation of device conformance and interoperability,” he added.
That is where the alliance comes in, according to Wiggins. “Ensuring interoperability is the reason the alliance exists,” he said. Because work on the endpoint protocols is underway, those standards will likely be completed by the end of 2013, he added.

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