Reaffirmed versions of the following AES standards have been published:
Posted: Sunday, July 7, 2019
Call for comment on reaffirmation of the following AES standard has been published on 2019-07-07:
AES56-2008: AES standard for acoustics - Sound source modeling - Loudspeaker polar radiation measurements
This standard describes how the measurements of loudspeaker polar radiation data shall be made and documented. This acquired data is suitable for application in room acoustic, electro-acoustic, and sound system predictions, and loudspeaker data sheets.
Posted: Sunday, July 7, 2019
Left to right: Harold Geller - Ad-id, Ryan Schnizlein - Cutters Studios, Joyce Chen - Facebook, Jim Starzynski - AES SC-02-12-P Chairman, Richard Klosa - Yangaroo
AES member and chair of AES Standards working group SC-02-12-P, Jim Starzynski participated on a panel on audio specifications at the Association of Independent Commercial Producers in NYC. The panel discussed the issues and complications with delivering audio for various platforms and what can be done to bridge the differences with a common deliverable. The goal is for AICP post-production members to deliver a single mix for all platforms. Moderated by Harrold Geller of Ad-Id, the panel also included an independent mix engineer, a rep from content integration at Facebook and a commercial aggregator.
This was the first opportunity to present the new AES71 standard to a forum outside the AES. Jim used the opportunity to review the standard and to talk about LKFS and the value of a universal deliverable. Although the group had no awareness about AES71 and all the good work going on in AES and CTA, there was much support for striving towards a -24 LKFS loudness.
This panel was a good first step in testing the waters and getting the word out!
Posted: Tuesday, June 11, 2019
Reaffirmed versions of the following AES standards have been published:
Posted: Wednesday, May 22, 2019
Claudio Becker-Foss presenting "AES67 and ST2110-30 Interoperability in Real Life"
The IP Showcase at the National Association of Broadcasters convention in Las Vegas opened today. As in previous years the AES is one of the sponsors.
Anyone attending the NAB should stop by booth C12634 to catch the technical presentations. Tuesday will feature presentations about network audio technology including from AES members Claudio Becker-Foss, Andreas Hildebrand, Greg Shay and Leigh Whitcomb. All are experts involved in developing the AES67 standard.
10:00AM to 10:30AM
AES67 and ST2110-30 Interoperability in Real Life, by Claudio Becker-Foss
12:00PM to 12:30PM
ST2110-30 and NMOS IS-08 - Audio Transport and Routing, by Andreas Hildebrand
3:30PM to 4:00PM
Aligning Streams in ST2110 or How to Manage Lip Sync, by Leigh Whitcomb
4:30PM to 5:00PM
Synchronization of ST2110 Streams, by Andreas Hildebrand
5:00PM to 5:30PM
Using PTP / ST2059: A Practical Experience Perspective, by Greg Shay
Posted: Monday, April 8, 2019
At the NAB show in Las Vegas representatives from AES Standards and SMPTE Standards met over dinner and discussed ways to improve their existing liaison relationship. The goai is to improve standards development in areas relevant to both societies. Networked audio and cinema sound systems were specifically discussed at length, though the opportunity for cooperation exists in other areas as well.
Participating in the meeting were (from left to right) Bruce Devlin (SMPTE Standards Vice President), Richard Cabot (AES Standards Manager), Thomas Bause Mason (SMPTE Standrds Manager), Jeff Berryman (AES Standards Vice-Chair), Brian Vessa (SMPTE Cinema Sound Standards Working Group Chair).
Posted: Monday, April 8, 2019
AES48-2019 AES standard on interconnections — Grounding and EMC practices — Shields of connectors in audio equipment containing active circuitry, has been published.
AES48 specifies requirements for the termination, within audio equipment, of the shields of cables supporting interconnections with other equipment, taking into account measures commonly necessary for the preservation of EMC (electromagnetic compatibility) at both audio and radio frequencies.
This standard specifies requirements for the connections of the designated shield contact of connectors built into audio equipment using active circuitry. These requirements are necessary for the preservation of electromagnetic compatibility (EMC) at both audio and radio frequencies.
To obtain copies of this standard, go to http://www.aes.org/publications/standards/ and search using "AES48", or go directly to:
http://www.aes.org/publications/standards/search.cfm?docID=44
Posted: Wednesday, March 6, 2019
The Call for Comment on DRAFT AES73id-xxxx, "AES information document for acoustics – Loudspeaker driver comparison chambers" was published 2019-03-05.
Acoustic performance measurements on loudspeaker drivers that are measured in different sites or with different equipment or methods are subject to variations in accuracy and repeatability. Similarly, end-ofline loudspeaker test systems often utilize small, arbitrarily shaped, driver measurement chambers that do not correlate from line to line, or from site to site. This document is motivated by the need for engineers in different locations to share accurate measurement data on specific or same type loudspeaker drivers and addresses some of the factors affecting repeatability of measurements in different locations. It considers factors affecting the interchangeability of measurement data from simple loudspeaker comparison chambers and discusses some performance capabilities.
Posted: Tuesday, March 5, 2019
The Call for Comment on DRAFT REVISED AES31-2-xxxx, "AES standard on network and file transfer of audio - File format for transferring digital audio data between systems of different type and manufacture" was published 2019-02-23.
Posted: Saturday, February 23, 2019
The Call for Comment on DRAFT AES72-xxxx, "AES standard on interconnections - Application of RJ45-type connectors and quad twisted pair cable for audio interconnections" was published 2019-02-15.
This standard documents 8P8C (RJ45) pin-outs commonly used in analog and digital professional audio applications to carry four links, including channel/link order, signal polarity and phantom power compatibility. Type numbers are assigned to these variations, allowing manufacturers to easily specify which wiring standard is used in a particular piece of equipment. Users may use these type numbers to assess compatibility of disparate equipment in a given application. This standard also documents practical application details of interest to users of this technology. Conformance with this standard will identify mutually compatible devices, enabling users to avoid problems when employing equipment from multiple manufacturers.
Posted: Friday, February 15, 2019
