AES Standards News Blog

 AES64-2012, AES standard for audio applications of networks - Command, control, and connection management for integrated media, has been published.

This standard for networked command, control, and connection management for integrated media is an IP-based peer-to-peer network protocol, in which any device on the network may initiate or accept control, monitoring, and connection management commands. The AES64 protocol has been developed around three important concepts: structuring, joining, and indexing. Every parameter is part of a structure, and control is possible at any of the levels of the structure, allowing for control over sets of parameters. Parameters can be joined into groups, thereby enabling control over many disparate parameters from a single control source. Every parameter has an index associated with it and, once discovered, this index provides a low bandwidth alternative to parameter control. 

http://www.aes.org/publications/standards/search.cfm?docID=93

  A Call for Comment on DRAFT REVISED AES2-xxxx, AES standard for acoustics - Methods of measuring and specifying the performance of loudspeakers for professional applications - Drive units, was published 2012-12-22

http://www.aes.org/standards/comments/cfc-draft-rev-aes2-xxxx-121222.cfm

A Call for Comment on DRAFT REVISED AES-1id-xxxx,  AES Information Document for Acoustics - Plane-Wave Tubes - Design and Practice, was published 2012-12-22.

http://www.aes.org/standards/comments/cfc-draft-rev-aes-1id-xxxx-121222.cfm

  A Call for Comment on DRAFT AES65-xxxx, AES standard for interconnections - Connector for surround microphones, was published 2012-12-18.

http://www.aes.org/standards/comments/cfc-draft-aes65-xxxx-121218.cfm

A Call for Comment on DRAFT AES66-xxxx, AES standard for professional audio equipment - Application of connectors - Miniature XLR-type polarity and gender, was published 2012-12-18.

http://www.aes.org/standards/comments/cfc-draft-aes66-xxxx-121218.cfm

 A Call for Comment on DRAFT REVISED AES55-xxxx, AES standard for digital audio engineering - Carriage of MPEG Surround in an AES3 bitstream, was published 2012-12-03

http://www.aes.org/standards/comments/cfc-aes55-xxxx-rev-121203.cfm

 A Call for Comment on DRAFT REVISED AES31-2-xxxx, AES standard on network and file transfer of audio – Audio-file transfer and exchange – File format for transferring digital audio data between systems of different type and manufacture, was published 2012-12-03

http://www.aes.org/standards/comments/cfc-aes31-2-xxxx-rev-121203.cfm

A Call for Comment on DRAFT AES64-xxxx, AES standard for audio applications of networks - Command, control, and connection management for integrated media, was published on 2012-11-21. 

http://www.aes.org/standards/comments/cfc-draft-aes64-xxxx-121121.cfm

Project AES-X213,  MADI over twisted-pair cabling, has been initiated.

This project seeks to add twisted pair connectivity to AES10 in addition to the current connectivity options.

A twisted-pair interconnection should lead to further simplification of multichannel audio connectivity and significant cost reductions. 1. Interface cost reduction allowing for use in low and high channel capacity applications. 2. Allows use of commonly available Category 5 (or better) cabling infrastructures. 3. Smaller footprint for device connectors, allowing for high density connectivity. 4. Easier implementation, as the most of the coding is done by a cost effective and readily available Ethernet PHY. 5. Galvanic isolation for copper based AES10 interfaces. 6. Guarantees immunity from obsolete, boutique and expensive components 7. Optionally allows for standardized control using 10/100MB Ethernet on the same cable/connector as MADI. 8. Optionally allows for devices to be remote power over the interface using PoE phantom power.

http://www.aes.org/standards/meetings/init-projects/aes-x213-init.cfm

 Project AES-X212, HRTF file format, has been initiated.

This project seeks to standardize a file format to exchange binaural listening parameters in the form of head related transfer functions (HRTF). The format will be scalable to match the available rendering process. The format will be designed to include source materials from different HRTF databases. 

Binaural listening is growing fast, because of growing sales in smartphones, tablets and other individual entertainment systems. The lack of a standard for HRTF exchange means each company's data is unreadable by others.

Interest in 3D audio is rising, and binaural listening could be the very first 3D audio vector with sufficient fidelity of HRTF.

With a standardized HRTF file format, each company could contribute its best algorithms, providing good personalized capture and/or rendering, allowing the consumer to choose its best combination of technologies for the best quality of experience.

http://www.aes.org/standards/meetings/init-projects/aes-x212-init.cfm