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The following standards and information documents are published by the Audio Engineering Society. The latest printing will include all amendments and corrections and will be available within a week of its date.

PLEASE NOTE: These are copyrighted documents and are for the use of the original purchaser only. They must not be printed or circulated without the written permission of the AES Standards Committee. Any other use of AES standards information obtained from this website, including republishing or selling, is expressly forbidden.

PREVIEW extracts are provided without charge as a guide to the content of each standard.

For links to other standards organizations relevant to audio engineering, click here. For questions, please contact the AES Standards Secretary.

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AES49-2005 (s2012): AES standard for audio preservation and restoration - Magnetic tape - Care and handling practices for extended usage
Printing Date:
2010-10-28
Publication History:
Pub. 2005, Reaffirmed 2010; Stabilized 2012.
Abstract:
This standard provides recommendations for the care and handling of magnetic tape in order to optimise the life of the medium and its recorded content. It covers analog and digital tape and includes tape made for audio, video, instrumentation and computer use.
File type and size:
Downloadable PDF (721.9 KB)
Cost:
$0 AES Member   $100 Non-Member
Preview (226.82 KB)

AES-R6-2011 (s2018): AES project report - Guidelines for AES standard for digital audio engineering - High-resolution multi-channel audio interconnection (HRMAI)
Printing Date:
2011-08-24
Publication History:
Ed.1 2005; Rev. 2011; Stabilized 2018
Abstract:
This edition revises AES-R6-2005 to complement the latest revision of AES50.
This report is intended to accompany AES50-2005 High-resolution multi-channel audio interconnection (HRMAI). It provides additional background, rationale and implementation advice. It should be read in conjunction with AES50-2005. In particular, the first section of this document provides an overview of the technology, which may aid understanding of the context of the standard.
File type and size:
Downloadable PDF (561.98 KB)
Cost:
$0 AES Member   $50 Non-Member
Preview (171.78 KB)

AES50-2011 (r.2017): AES standard for digital audio engineering - High-resolution multi-channel audio interconnection
Printing Date:
2011-09-21
Publication History:
Ed.1 2005; Rev. 2011; Stabilized 2017
Abstract:
This new edition revises AES50-2005 and contains amendments resulting from a real-world implementation of the standard.
HRMAI provides a professional multi-channel audio interconnection with a number of distinctive characteristics:
\95 Support for a wide range of commonly-used digital audio coding formats
\95 Low and deterministic latency
\95 Use of ubiquitous ?Category-5? data cable
\95 Interconnect span up to 100 m
\95 High-quality full-duplex clocks transmitted in parallel with audio data
\95 Full-duplex audio interconnection
\95 5 Mbit/sec full-duplex
auxiliary data connection, compatible with Ethernet networks.

HRMAI is a high-performance point-to-point audio interconnection rather than a network, although the auxiliary data
may operate as a true network, independently of the audio.

Companion document AES-R6-2005 provides additional background information and implementation guidelines.
File type and size:
Downloadable PDF (487.49 KB)
Cost:
$0 AES Member   $100 Non-Member
Preview (318.06 KB)

AES48-2019: AES standard on interconnections - Grounding and EMC practices - Shields of connectors in audio equipment containing active circuitry
Printing Date:
2019-03-06
Publication History:
Pub. 2005; Reaffirmed 2010; Stabilized 2015; Revised 2019
Abstract:
This standard 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.
The shielding (or screening) of audio equipment, cables, and microphones can be critical for EMC. The improper connection of these shields can cause common-impedance coupling in equipment. From XL connector usage, where Pin 1 is standardised as the designated shield contact, this has been identified as the Pin 1 problem
File type and size:
Downloadable PDF (608.59 KB)
Cost:
$0 AES Member   $50 Non-Member
Preview (299.85 KB)

AES-10id-2020: AES information document for digital audio engineering - Engineering guidelines for the multichannel audio digital interface, AES10 (MADI)
Printing Date:
2020-11-27
Publication History:
Pub. 1995; Reaffirmed 2000; Revised 2005; Reaffirmed 2011; Reaffirmed 2017; Revised 2020
Abstract:
This document provides guidance for areas of application of the MADI standard (AES10) that might be unclear. It is not intended to replace AES10, but to supplement it in those areas that are not suitable for definition in a standards document. This revision has been substantially re-organised and updated (12 pages)
File type and size:
Downloadable PDF (338.66 KB)
Cost:
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Preview (278.2 KB)

AES47-2006 (s2017): AES standard for digital audio - Digital input-output interfacing - Transmission of digital audio over asynchronous transfer mode (ATM) networks
Printing Date:
2011-10-17
Publication History:
Pub. 2002; Rev. 2006; Addenda 2010-02-19; Reaffirmed 2011; Stabilized 2017
Abstract:
This document specifies the method of carrying multiple channels of audio in linear PCM or AES3 format in calls across an asynchronous transfer mode (ATM) network to ensure interoperability. The specification includes the method of conveying information concerning the format and sampling frequency of the digital audio signal when setting up the calls.
The 2006 revision specifies an Organisationally Unique Identifier, and simplifies the minimum requirements to ensure interworking. (26 pages)
Report AES R4-2002, also available from this site, is a useful explanatory supplement
File type and size:
Downloadable PDF (432.26 KB)
Cost:
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Preview (277.12 KB)

AES46-2002 (s2008): AES standard for network and file transfer of audio Audio-file transfer and exchange Radio traffic audio delivery extension to the broadcast-WAVE-file format
Printing Date:
2007-10-16
Publication History:
Pub. 2002; reaffirmed 2007; Stabilized 2008-09-22
Abstract:
This document provides a convention for communicating basic radio traffic and continuity data via a dedicated chunk embedded in Broadcast Wave format compliant WAVE files. (16 pages)
File type and size:
Downloadable PDF (414.63 KB)
Cost:
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Preview (213.4 KB)

AES45-2001 (s2017): AES standard for single programme connectors -- Connectors for loudspeaker-level patch panels
Printing Date:
2011-10-05
Publication History:
Pub. 2001; Reaffirmed 2006; Reaffirmed 2011; Stabilized 2017
Abstract:
This standard complements IEC 60268-12 including amendments 1 and 2, extending the standardization of application of AES45-series connectors to their use for loudspeaker-level patch panels. (8 pages)
File type and size:
Downloadable PDF (527.5 KB)
Cost:
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Preview (173.32 KB)

AES43-2000 (s2012): AES standard for forensic purposes -- Criteria for the authentication of analog audio tape recordings
Printing Date:
2010-12-02
Publication History:
Pub. 2000; Reaffirmed 2005; Reaffirmed 2010; Stabilized 2012.
Abstract:
The purpose of this standard is to formulate a standard scientific procedure for the authentication of audio tape recordings intended to be offered as evidence or otherwise utilized in civil, criminal, or other fact finding proceedings. (11 pages)
File type and size:
Downloadable PDF (400.47 KB)
Cost:
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Preview (166.33 KB)

AES42-2019: AES standard for acoustics -- Digital interface for microphones
Printing Date:
2019-10-13
Publication History:
Published 2001; Revised 2006; Reprinted 2008-07-22; Addenda 2010-02-19; Revised 2010; Reaffirmed 2015. Revised 2019
Abstract:
This standard describes an extension of the existing digital audio interface AES3 to provide a digital interface for microphones and revises AES42-2010. The principal changes in this document define additional operating features in the command structure so that processing internal to the microphone may be controlled from a mixing console, for example. The 2019 revision fixes minor errors in the tables and allows the use of digitally controlled clocks as an alternative to the traditional analog PLL based approach. (42 pages)
File type and size:
Downloadable PDF (795.7 KB)
Cost:
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Preview (343.64 KB)

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