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Call for Comment on DRAFT REVISED AES5-xxxx - AES recommended practice for professional digital audio — Preferred sampling frequencies for applications employing pulse-code modulation

The Call for Comment on DRAFT REVISED AES5-xxxx - "AES recommended practice for professional digital audio — Preferred sampling frequencies for applications employing pulse-code modulation" was published 2018-09-19.

This standard covers the use of certain preferred sampling frequencies in applications employing pulse-code modulation where there is a need for interchange of high-fidelity digital audio programs with a minimum of transcoding complexity. Examples of applications where such interchange may occur include, but are not limited to, master tape recordings (audio alone, and audio with video), submaster tape recordings prepared for transfer to a consumer product format, studio signal processing, and the point-to-point transmission of broadcast signals over satellite or terrestrial networks.

This standard is not concerned with sampling frequencies for narrow-band audio applications, such as voice-quality transmission links, or with processing devices in which both the input and the output signals are in an analog format, even if such signals are ultimately used for interchange of program.

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Posted on September 18, 2018 at 5:00:00 AM EDT



AES71-2018: Recommended Practice Loudness Guidelines for Over the Top Television and Online Video Distribution Published

This AES Recommended Practice (RP) describes the many issues related to online audio Loudness variations.  It provides comprehensive recommendations documenting effective guidelines for managing audio Loudness of soundtracks of television and video content available to consumers by Over-The-Top (OTT) and by Online Video Distributors (OVD).

When followed, these guidelines will provide consistent Loudness, appropriate playback loudness range, reduce audio quality degradation from excessive limiting, preserve the original artistic intent, and improve the listening experience. This document does not provide specific recommendations about target playback loudness or dynamic range.

The standard is available for sale now on in the AES Standards Store.

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Posted on August 1, 2018 at 5:00:00 AM EDT



Call for Comment on DRAFT REVISED AES53-xxxx - AES standard for digital audio - Digital input-output interfacing - Sample-accurate timing in AES47

The Call for Comment on DRAFT REVISED AES53-xxxx - "AES standard for digital audio - Digital input-output interfacing - Sample-accurate timing in AES47" was published 2018-06-22.

This document specifies how the timing markers specified in AES47 may be used to associate an absolute timestamp with individual audio samples. AES47 specifies a format for the transmission of digital audio over asynchronous transfer mode (ATM) networks. A recommendation is made to refer these timestamps to the SMPTE epoch which in turn provides a reference to UTC and GPS time.

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Posted on June 22, 2018 at 5:00:00 AM EDT



Calls for Comment on Reaffirmation of AES-1id, AES2, AES59, AES63, AES65, AES66

Calls for comment on reaffirmation of the following AES standards have been published on 2018-06-22:

AES-1id-2012: AES Information Document for Acoustics - Plane-Wave Tubes - Design and Practice

AES2-2012: AES standard for acoustics - Methods of measuring and specifying the performance of loudspeakers for professional applications - Drive units

AES59-2012: AES standard for professional audio - Audio application of 25-way D-type connectors in balanced circuits

AES63-2012: AES standard for interconnections - Data connector in an XLR connector shell

AES65-2012: AES standard for interconnections - Connector for surround microphones

AES66-2012: AES standard for professional audio equipment - Application of connectors - Miniature XLR-type polarity and gender

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Posted on June 22, 2018 at 5:00:00 AM EDT



Call for Comment on Withdrawl of AES64-2012: AES standard for audio applications of networks - Command, control, and connection management for integrated media

Call for Comment on WITHDRAWAL of AES64-2012, AES standard for audio applications of networks - Command, control, and connection management for integrated media has been published in accordance with our 5-year review policy on 2018-06-22.

The reason for withdrawal is that the standard has become out of date and the original proponents do not think the effort required to update it is worthwhile.

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Posted on June 22, 2018 at 5:00:00 AM EDT


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