Blogs
Originally featured on BroadcastEngineering.com
Jun 20

Written by:
6/20/2012 2:14 PM  RssIcon

In a first for professional microphones, Sennheiser has introduced a prototype microphone that employs Audio Video Bridging (AVB) technology, which allows time-synchronized low latency streaming services through IEEE 802 networks.

Though still a prototype and not available for sale in its current form, Sennheiser said the AVB model was the successful outcome of a product study. The company said the study proved that a professional microphone can be transmitted into a digital Ethernet network without problems and demonstrates that AVB technology already functions as a network technology.

Audio and video equipment connections historically have been analog one-way, single-purpose and point-to-point. Even digital A/V standards often were point-to-point and one-way such as S/PDIF for audio and the serial digital interface (SDI) for video. This resulted in large confusing masses of cables, especially in professional and high-end consumer applications.

In July 2004, the IEEE (Institute of Electrical and Electronics Engineers) started a resident Ethernet study group for A/V streaming. In November 2005, work shifted to the IEEE 802.1 working group, which was responsible for cross-network bridging standards. A goal of the working group was to have the technology be scalable from inexpensive consumer applications to professional standards.

sennheiser_logo

An AVB network implements a set of protocols developed by the IEEE 802.1 Audio/Video Bridging Task Group. The standard allows precise synchronization, traffic shaping for all media streams, admission controls and identification for non-participating devices

Though devices can co-exist, only AVB devices are able to reserve a portion of network resources through the use of admission control and traffic shaping and send and receive the new timing-based frames.

See a video describing AVB.

Sennheiser is one of the first companies to use this technology in a product, proving that the AVB networking standard is no longer a distant dream.

“We are convinced that AVB will play a major role in the future,” said Sennheiser product manager Kai Tossing.

Sennheiser is a member of the AVnu Alliance, an industry forum dedicated to the advancement of professional-quality audio video. Its key objective is to establish Audio Video Bridging (AVB) as a standard technology for A/V applications such as microphones, loudspeakers, laptops, beamers and many other devices.

Tags:
Categories:
Location: Blogs Parent Separator BE Blogs

Your name:
Gravatar Preview
Your email:
(Optional) Email used only to show Gravatar.
Your website:
Title:
Comment:
Add Comment   Cancel 




Tuesday 03:07 PM
WMUR-TV Says FAA Drone Rules Preclude ENG
The FAA’s current rules and proposed ban on flight over people, requirement of visual line of sight and restriction on nighttime flying, effectively prohibit broadcasters from using UAS for newsgathering. ~ WMUR-TV General Manager Jeff Bartlett

Sue Sillitoe, White Noise PR /   Monday 05:38 AM
DPA Microphones Takes On A Downpour at the 2015 BRIT Awards
Manor Marketing /   Monday 06:52 AM
Cinegy to clarify the Cloud at NAB seminars

 
Featured Articles
Discover TV Technology