Broadcast News

Bookmark and Share
20/03/2014

Paving The Way For AVB...

News Image
The emergence of the Audio/Video Bridging (AVB) standard - a combination of new and augmented IEEE standards - brings media facilities a new opportunity to improve the way in which audio and video are transmitted. By John Terrey, Vice President of Sales, Wohler.

Supporting bandwidth allocation and priority rules based on timing, AVB enables the delivery of time-synchronised, low-latency audio and video over Ethernet networks with perfect quality of service (QoS) and full compatibility with ‘legacy’ Ethernet networks. In short, the AVB standard makes it possible to leverage the unmatched data-networking capabilities of Ethernet in assuring reliable real-time audio/video networking.
For network designers and administrators, AVB simplifies end-to-end digital networks and makes them much easier to manage. In addition to reducing interoperability issues, and in turn improving the selection, pricing, and support options open to engineers designing a system, AVB enables better sharing, monitoring, and management of network resources throughout a facility. Ongoing standards work will assure that AVB remains a future-proof approach.
The first step that facility engineers need to take in preparing for AVB adoption is to ensure that the IP network has been designed and implemented properly and that network switches and routers are AVB-compatible. With this backbone in place, media facilities can begin working with the increasing number of AVB-enabled products now coming to market.
To allow media facilities to take advantage of the AVB standard in the monitoring realm, whether now or in the future, Wohler has developed a new AVB Monitoring Option card for the company’s flagship AMP2 Series modular audio/video monitoring solution. The Wohler AMP2-E16V offers a complete suite of tools for analysing and managing audio quality, level, and loudness; metadata; Dolby D, E, and DD+ decoding; and more. The 2-RU workstation provides 16 channels of simultaneous mixed-format audio metering and management and allows users to customise its two large high-resolution LCD screens, which auto-detect 3G/HD/SD-SDI video, to display application-specific audio/video data. With this Wohler system, users also can mix, sum and route program audio live, without the need for a separate audio console.
The open architecture and ease of use that have made the AMP2-E16V a popular choice for demanding applications also allow for a seamless upgrade of the system to support AVB. Users can simply download the appropriate software update from Wohler and insert the AVB Monitoring Option card into the monitoring unit, and they’ve made their unit AVB-compliant.
Two factors in the development of monitoring solutions are making this type of upgrade an easy choice for broadcasters.
The first is that some monitoring units already deployed in the field may be upgraded easily to support AVB; no new external systems are necessary. The modular design of units such as the AMP2-16V enables users to add AVB support when and as needed. The second key factor is the way in which such audio/video monitors incorporate AVB inputs. When users have the ability to add AVB inputs without losing any of their other inputs, they retain the full power and flexibility of their monitoring systems.
The Wohler AMP2-E16V AVB implementation employs a 100 BaseT Ethernet port and familiar RJ-45 connection. Each AVB Monitoring Option card decodes two AVB streams of eight channels each (IEC 61883-6 format), and these two streams must be locked to the same media clock. Just like any other module for the AMP2-E16V, the AVB card occupies a single card slot.
AVB channels can be mixed, level-adjusted and monitored just like - and along with - AES, SDI, analog and other input types (even loudness monitoring can be applied to AVB channels). If users need to increase AVB channel count, they can install as many as five AVB cards in the monitoring unit.
The AMP2-E16V performs automatic sample rate conversion on inputs to the unit’s internal sample clock. AVB channels can be output via AES and analog outputs or re-embedded within an SDI stream.
Going forward, those customers that employ the AVB card will be able to update its firmware just as they would the firmware for any other I/O module.
Given the significant benefits promised by AVB such as a simpler network infrastructure, lower implementation costs, unified management and the ability to deliver current and next-generation video and audio applications with high QoS, it’s no wonder it has been steadily gaining support from broadcast manufacturers.
By making AVB support available within the widely used AMP2-E16V audio/video monitor, Wohler is reducing the cost and complexity of adopting this important standard.

The article is available in the online edition of RFV here.
(IT/MH)
VMI.TV Ltd

Top Related Stories
Click here for the latest broadcast news stories.

06/06/2024
DirectOut Appoints Commercial Audio Its Exclusive Distributor In Poland
DirectOut has announced that Commercial Audio is now its exclusive distributor in Poland, providing the company's audio solutions with a new home in P
28/03/2012
Intercom Goes Real-Time Ethernet With Riedel
Riedel Communications, one of the leading manufacturers of real-time networks for video, audio and communications, has premiered a suite of AVB produc
16/04/2014
TSL Debuts PAM1/2 AVB At NAB 2014
TSL Products debuted its PAM1 and PAM2 AVB Audio Monitoring Units at this year's NAB Show. "Designed for a major U.S. broadcaster moving into an Audio
11/12/2013
Riedel Reveals ISE Lineup
Riedel has announced its product lineup for ISE 2014: MediorNet MN-C-OPT-HDMI and MN-HDO-4IO Universal Video Cards Riedel Communications has released
18/02/2022
Sonnet Announces Avid-Qualified Thunderbolt AVB Adapter
Sonnet Technologies today announced the Sonnet Thunderbolt™ AVB Adapter for Mac® computers, a compact, bus-powered Gigabit Ethernet adapter with AVB (
11/08/2014
Riedel Sets Off For BIRTV2014
Riedel has announced its lineup for this year's BIRTV show, August 27-30 at the China International Exhibition Center in Beijing. MediorNet 2.0 and Me
31/10/2013
Riedel To Showcase Artist Expansion At NATEXPO
At NATEXPO 2013, Riedel Communications is to showcase its new CPX-AVB expansion card for Riedel Artist 1100 series control panels. The CPX-AVB provide
29/09/2014
Axon Demonstrates 4K Over Ethernet-AVB
Axon Digital Design, manufacturer of conversion and interfacing products, used this year's IBC to showcase 4K over Ethernet using AVB (audio video bri
19/06/2024
ProRent Elevates Audio-Visual Excellence
Earlier this year, ProRent reaffirmed its position as Bosnia and Herzegovina's leading professional audio-visual and truss rental company by enhancing
17/06/2024
Martin Audio WPM Specified For Belgium's Silt Architectural Project
The newly-completed, multifunctional Silt complex—an architecturally sophisticated 'landscaper' completed earlier this year—forms a dominant, wood-lat
17/06/2024
Leftfield Upgrades From A Prism Sound Orpheus To A Titan Audio Interface
Neil Barnes, a founder member of British electronic music group Leftfield, has installed a Prism Sound Titan audio interface in Leftfield’s London stu
14/06/2024
NUGEN Audio Unveils New NUtility Toolkit
NUGEN Audio unveils its new NUtility Toolkit, which comprises its SigMod, AB Assist, Jotter and Aligner plug-ins. Ideal for entry-level and profession
05/06/2024
Marshall To Display Range Of Audio And Video Monitors
Marshall Electronics is to display a range of its audio and video monitors, cameras and accessories at Cine Gear 2024 (Booth 950). Marshall products a
06/11/2008
Australia's Global Television Installs Wohler Audio And Video Monitoring Equipment
PANORAMAdtv, the video products division of Wohler Technologies, has announced that Australia's Global Television is installing Wohler audio and video
12/05/2016
Wohler Unveils BroadcastAsia 2016 Solutions
Wohler Technologies will showcase two new products at BroadcastAsia 2016, it has been announced. The products are part of the company's iAM Series of