AES Standards News Blog

October 2012

New project - Open Control Architecture (OCA)

 Project AES-X210, Open Control Architecture (OCA), has been initiated.

The project was proposed by the OCA Alliance and is scoped to specify a scalable control-protocol architecture for professional media networks. The initial version will address audio aspects only, but it is intended ultimately to expand the scope to video through collaboration with a video-oriented standards body. The output intent is a standard.

OCA is an architecture for control of media network devices in all kinds of professional media networks, from very small to very large, and possibly with critical functions, including life safety. If OCA is widely adopted, the entire professional media systems industry will enjoy the well-known benefits of multi-vendor interoperability for all scales and types of media network applications.

AES-X210 has been assigned to AES SC-02-12 Working Group on Audio Networking.

http://www.aes.org/standards/meetings/init-projects/aes-x210-init.cfm


Posted: Tuesday, October 16, 2012

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AES-2id-2012, revised Guidelines for the AES3 interface

AES-2id-2012, AES information document for digital audio engineering - Guidelines for the use of the AES3 interface, has been revised.

This document provides guidelines for the use of AES3, AES recommended practice for digital audio engineering — Serial transmission format for two-channel linearly represented digital audio data, together with AES5, AES recommended practice for professional digital audio applications employing pulse-code modulation — Preferred sampling frequencies, and AES11, AES recommended practice for digital audio Engineering — Synchronization of digital audio equipment in studio operations.

 

This revision was made to harmonize with the multi-part revision of AES3 published in 2009. It contains updated references plus previous corrigenda and addenda. Operational modes no longer supported in AES3, such as "Minimum" implementation of channel status” have been identified. References to new operational features, such as those specified in AES41, AES52, AES55, and AES62, have been added. 

http://www.aes.org/publications/standards/

 


Posted: Tuesday, October 16, 2012

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AES-11id-2006, storage environment for multiple media archives, has been reaffirmed

AES-11id-2006 AES information document for preservation of audio recordings - Extended term storage environment for multiple media archives, has been reaffirmed. 

This information document provides guidelines for archivists faced with storing a variety of audio, still image and moving image media in a single storage environment.  This circumstance is faced by many archivists in small and medium size archives that must preserve and make available the wide variety of media from nitrate film to optical discs.  These guidelines provide recommendations to harmonize storage recommendations contained in standards and recommended practices published by the AES and the International Standards Organization (ISO).

http://www.aes.org/publications/standards/


Posted: Tuesday, October 16, 2012

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AES6-2008, weighted peak flutter of analogue sound recording equipment, has been reaffirmed

 AES6-2008 (r2012), AES Standard - Method for Measurement of Weighted Peak Flutter of Analogue Sound Recording and Reproducing Equipment has been reaffirmed.

Weighted peak flutter is measured using a 3150-Hz tone transmitted through the equipment. The tone is frequency demodulated, frequency-response weighted, peak-to-peak detected, time-response weighted, and read out on a two-sigma statistical voltmeter over a period of at least 5 s.  

A toleranced graph and table give the frequency-response weighting. The preferred statistical voltmeter is described; it replaces the earlier quasi-peak meter.

This standard has technical requirements identical to IEC 60386 Ed.1 1972 as amended by IEC 60386-am1, 1988. Measurement results according to this standard are identical to those made according to the older standards originally published as IEEE Std-193, IEC 60386 Ed.1 1972, CCIR 409-2, and DIN 45 507.

http://www.aes.org/publications/standards/


Posted: Tuesday, October 16, 2012

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