NOTE: These entries represent summary project status as reported by Working Group chairs and reviewed at the AESSC plenary during the AES 127th Convention in New York, NY., US, 2009-10. Their confirmation requires the publication of the chairman's report from each Working Group meeting at that convention.
Reports will be posted to this web site as soon as available.
Project status may be updated to reflect current status at any time.
The following designated study or writing projects are currently active and assigned to working groups of the AES Standards Committee. Working groups and their chairs are listed at http://www.aes. org/standards/about/aessc-structure.cfm.
The groups are open to participation by any individuals directly and materially affected by these projects or wishing to open other projects. Please click on "Participation" at http://www.aes.org/standards.
Each of the following project descriptions contains a header with up to ten items:
The header may be followed by descriptive information about the project. Project development steps are described in "Progressing of AES standards".
Project scope: This Recommended Practice establishes a set of primary specifications to be followed by manufacturers in describing loudspeaker components used in professional audio and sound-reinforcement system design.
Assigned to: SC-04-03, Status: Reaffirmed
Intent: Review, Initiated: 2012, Target: 2024
Current goal: Draft revised standard, Goal date: Continuing
Project scope: These four documents specify a recommended interface for the serial digital transmission of two channels of periodically sampled and linearly represented digital audio data from one transmitter to one receiver. This part one defines the format for coding audio used for the audio content.
Assigned to: SC-02-02, Status: Reaffirmed
Intent: Review, Initiated: 2014, Target: 2024
Current goal: none, Goal date: Continuing
Project scope: These four documents specify a recommended interface for the serial digital transmission of two channels of periodically sampled and linearly represented digital audio data from one transmitter to one receiver. This part two defines the format for coding metadata, or subcode, relating to the audio content and carried with it.
Assigned to: SC-02-02, Status: Reaffirmed
Intent: Review, Initiated: 2014, Target: 2024
Current goal: Reaffirmation, Goal date: Continuing
Project scope: These four documents specify a recommended interface for the serial digital transmission of two channels of periodically sampled and linearly represented digital audio data from one transmitter to one receiver. This part three defines the format for transport of an AES3 digital audio interface.
Assigned to: SC-02-02, Status: Reaffirmed
Intent: Review, Initiated: 2014, Target: 2024
Current goal: none, Goal date: Continuing
Project scope: These four documents specify a recommended interface for the serial digital transmission of two channels of periodically sampled and linearly represented digital audio data from one transmitter to one receiver. This Part 4 document specifies the physical and electrical parameters for different media. The transport format defined in part 3 is intended for use with shielded twisted-pair cable of conventional design over distances of up to 100 m without transmission equalization or any special equalization at the receiver and at frame rates of up to 50 kHz. Longer cable lengths and higher frame rates may be used, but with a rapidly increasing requirement for care in cable selection and possible receiver equalization or the use of active repeaters, or both. Provision is made in this standard for adapting the balanced terminals to use 75 Ohm coaxial cable, and transmission by fibre-optic cable is under consideration. The document does not cover connection to any common carrier equipment. In this interface specification, mention is made of an interface for consumer use. The two interfaces are not identical.
Assigned to: SC-02-02, Status: Reaffirmed
Intent: Review, Initiated: 2014, Target: 2024
Current goal: none, Goal date: Ongoing
Project scope: 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. This standard is not concerned with sampling frequencies for narrow-band audio applications, such as voicequality 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.
Assigned to: SC-02-02, Status: Reaffirmed
Intent: Review, Initiated: 2018, Target: 2028
Current goal: None, Goal date: continuing
Project scope: This standard specifies the "weighted peak" method of measuring flutter of sound recorders and reproducers for normal audio usage. For special purposes--high speed duplicators, different speeds in recording and reproducing, etc.--special procedures not described here should, if required, be used.
Assigned to: SC-00, Status: AES6-2008 stabilized
Intent: Stabilized, Initiated: 2013, Target: None
Current goal: None, Goal date: None
Project scope: This standard specifies a method of measuring the recorded flux per unit track width, called fluxivity, of a magnetically recorded sinusoidal test signal at medium wavelengths for all magnetic sound record formats, by using a high-efficiency magnetic reproducing head. It also specifies the equipment needed to implement this method.
Assigned to: SC-00, Status: AES7-2000 stabilized
Intent: Stabilized, Initiated: 2005, Target: none
Current goal: none, Goal date: none
Project scope: This standard describes the data organization and electrical characteristics for a multichannel audio digital interface (MADI). It includes a bit-level description, features in common with the two-channel format of the AES3, AES Recommended Practice for Digital Audio Engineering - Serial Transmission Format for Linearly Represented Digital Audio Data, and the data rates required for its utilization. The specification provides for the serial digital transmission over coaxial or fibre-optic lines of 28, 56, or 64 channels of linearly represented digital data at a common sampling frequency within the range of 32 kHz to 96 kHz having a resolution of up to 24 bits per channel. Only single-point to single-point interconnections from one transmitter to one receiver are supported.
Assigned to: SC-02-02, Status: Examine inclusion of twisted pair format
Intent: Review, Initiated: 2020, Target: 2025
Current goal: Revision, Goal date: Revision
Project scope: This document provides a recommended practice for manufacturers and users of digital audio equipment aimed at promoting economical and efficient methods for synchronizing interconnected digital audio equipment. The provisions make use of the two-channel digital audio interface standard for professional use, AES3. It is expected that the recommendations will be adopted for synchronizing all other digital audio interfaces. The document addresses two groups of parameters. The first concerns the performance requirements for the successful interchange of digital audio data between equipment (5). The second concerns the performance requirements for the regeneration of clocks used for analog-to-digital and digital-to-analog, conversion (6).
Assigned to: SC-02-02, Status: Revised to eliminate insensitive terms
Intent: Review, Initiated: 2020, Target: 2025
Current goal: Revision, Goal date: Revision
Project scope: This standard shall apply to three- and five-pin circular connectors, commonly and generically known as XLRtype, used for the interconnection of all categories of sound system components for professional audio, commercial, recording, broadcast, and similar applications, regardless of function, type, or level of the signal. It specifies the application and polarity of analog signals for these connectors. This standard does not pertain to the dimensions of the connectors.
Assigned to: SC-00, Status: LB14111102 closed, stabilization approved
Intent: Stabilization, Initiated: 2019, Target: Continuing
Current goal: Status report, Goal date: Continuing
Project scope: to provide methods for specifying and verifying the performance of digital audio equipment, and specifically to describe the testing of medium- and high-performance digital audio equipment.
Assigned to: SC-02-01, Status: Ian Dennis created a draft list of changes
Intent: Review, Initiated: 2020, Target: 2025
Current goal: Solicit changes, Goal date: Continuing
Project scope:
Assigned to: SC-00, Status: AES18-1996 stabilized
Intent: Stabilized, Initiated: 2002-04, Target: none
Current goal: none, Goal date: none
Project scope: The recommendations of this document apply to the subjective evaluation of sound reproduction of loudspeakers in domestic listening environments and in professional environments of similar acoustics. The recommendations apply most directly to user-installed free-standing and in-wall loudspeakers.
Assigned to: SC-00, Status: AES20-1996 stabilized
Intent: Stabilized, Initiated: 2007, Target: none
Current goal: none, Goal date: continuing
Project scope: This standard provides recommendations concerning the storage conditions, storage facilities, enclosures, and inspection for recorded polyester-base magnetic tapes in roll form. It covers analog and digital tape and includes tape made for audio, video, instrumentation, and computer use.
Assigned to: SC-00, Status: AES22-1997 stabilized
Intent: Stabilize, Initiated: 2008, Target: none
Current goal: none, Goal date: none
Project scope: This standard provides a means to ensure that correct polarity is maintained throughout an audio production chain by determining the polarity of the signals at the various interface points between different items of equipment, in particular at the acoustical, electrical, mechanical, digital, and magnetic ports. The standard intends that each item of equipment comply separately with the polarity requirements for the input and output signals.
Assigned to: SC-00, Status: Ballot to stabilize AES26-2001 approved
Intent: Review, Initiated: 2017, Target: Continuing
Current goal: Stabilized, Goal date: Continuing
Project scope: This standard specifies recommended practices for safekeeping, conveyance, inspection, description, and labeling of audio recordings offered as evidence in criminal investigations, in criminal or civil proceedings, or in other forensic applications. For the purposes of this document, magnetic tapes include audio recordings and video recordings based upon magnetic transcription principles, regardless of the physical size, packaging, recording format, recording type (such as analog, digital, frequency-modulation), or recording speed of the tapes. Special practices for nonaudio portions of such recordings are beyond the scope of this standard. This document does not cover analysis of magnetic tapes or other recording media for the purposes of authenticity determination, talker identification, copyright violation, enhancement of oral conversations or other signals, or otherwise characterizing signals recorded on such tapes.
Assigned to: SC-00, Status: AES27-1996 stabilized
Intent: Stabilization, Initiated: 2008, Target: none
Current goal: none, Goal date: none
Project scope: This standard specifies test methods for estimating the storage life expectancy of information stored on compact disc (CD-ROM ) media, including CD audio, but excluding recordable media. Only the effects of temperature and relative humidity (RH) are considered.
Assigned to: SC-00, Status: AES28-1997 stabilized. Also published as ISO 18921:2008
Intent: Stabilize, Initiated: 2008, Target: none
Current goal: none, Goal date: nonr
Project scope: This document defines a disk format specification to maintain compatibility with as wide a user base as possible to facilitate audio-file transfer and exchange between differing systems. The document does not describe a complete disk format but provides enough information to choose a proprietary system that will maintain compatibility.
Assigned to: SC-00, Status: AES31-1-2001 stabilized
Intent: Stabilized, Initiated: 2012, Target: None
Current goal: None, Goal date: None
Project scope: This standard defines a file format for interchanging audio data between compliant equipment. It is primarily intended for audio applications in professional recording, production, post production, and archiving.
Assigned to: SC-02-08, Status: Add support for 32-bit floating point audio data
Intent: Revision, Initiated: 2012, Target: 2024
Current goal: Reaffirm, Goal date: 2024
Project scope: This standard provides a convention for expressing edit data in text form in a manner that enables simple and accurate computer parsing while retaining human readability. It also describes a method for expressing time-code information in character notation. It supports common professional audio sampling frequencies, video frame rates, and film framing. This document addresses the core need of the AES31 series of standards in providing a simple but extensible system for passing audio material between systems.
Assigned to: SC-02-08, Status: Revised to include SMPTE Label for ADL ID
Intent: Maintenance, Initiated: 2019, Target: 2026
Current goal: none, Goal date: none
Project scope: This document specifies the mapping between EDML elements, described in AES31-3, and their XML counterparts described in the included schema. The complete schema is included along with an XSLT document which provides a reference transform back to EDML for backwards compatibility.
Assigned to: SC-03-07, Status: New version published
Intent: Review, Initiated: 2015, Target: 2029
Current goal: Revision, Goal date: Continuing
Project scope: This standard specifies test methods for estimating the life expectancy of information stored in recordable compact disc systems. Only the effects of temperature and relative humidity on the media are considered. The standardized life expectancy estimated using this model is defined for discs maintained at 25 °C and 50 % RH. Discs exposed to more severe conditions of temperature and humidity are expected to experience a shorter life. The test plan documented in this standard does not attempt to model degradation due to exposure to light, corrosive gases, contaminants, or mishandling, and variations in the playback subsystem.
Assigned to: SC-00, Status: AES38-2000 stabilized. Also published as ISO 18927:2008
Intent: Stabilize, Initiated: 2010, Target: none
Current goal: none, Goal date: none
Project scope: This document describes a mechanism for embedding a set of data in an audio signal. The syntax and semantics of a number of sets of data are defined in other parts of this standard. Provision is also made for the transmission of additional ancillary information. The data is embedded in the audio so that it is transported with the audio so that the data may be recovered and used to control subsequent processing of the audio, for example by low bit-rate coders or dynamics processors.
Assigned to: SC-02-02, Status: Reaffirmed in 2022
Intent: Review, Initiated: 2012, Target: 2027
Current goal: Status Report, Goal date: Ongoing
Project scope: This document describes a format for the data to be transmitted to identify MPEG-1 Layer II and MPEG-2 LSF Layer II audio bit-rate reduction. This part assumes that the transmission mechanism according to part 1 of this Standard is used.
Assigned to: SC-02-02, Status: Reaffirmed in 2022
Intent: Review, Initiated: 2012, Target: 2027
Current goal: Status Report, Goal date: Ongoing
Project scope: This document describes a format for the data to be transmitted to convey a subset of the data in ISO/IEC 14496-3, which included downmix and loudness metadata. This Part assumes that the transmission mechanism according to Part 1 of this Standard is used.
Assigned to: SC-02-02, Status: Reaffirmed in 2022
Intent: Review, Initiated: 2012, Target: 2027
Current goal: Status Report, Goal date: Ongoing
Project scope: This document describes a format for the data to be transmitted to convey a subset of the data in Dolby E (as described in SMPTE RDD6-2008). This Part assumes that the transmission mechanism according to Part 1 of this Standard is used.
Assigned to: SC-02-02, Status: Reaffirmed in 2022
Intent: Review, Initiated: 2012, Target: 2027
Current goal: Status Report, Goal date: Ongoing
Project scope: This document describes a format for the data to be transmitted to convey loudness and true peak metadata as defined by the EBU following the work of the "PLOUD" group. This Part assumes that the transmission mechanism according to Part 1 of this Standard is used.
Assigned to: SC-02-02, Status: Reaffirmed in 2022
Intent: Review, Initiated: 2012, Target: 2027
Current goal: Status Report, Goal date: Ongoing
Project scope: This standard describes an extension of the existing digital audio interface AES3 to provide a digital interface for microphones.
Assigned to: SC-04-04, Status: Due for reaffirmation in 2024
Intent: Review, Initiated: 2020, Target: 2020
Current goal: Review, Goal date: None
Project scope: This standard specifies the minimum procedure for the authentication of analog audio tape recordings intended to be offered as evidence or otherwise utilized in civil, criminal, or other fact finding proceedings. It does not specify or restrict additional testing procedures that can be used.
Assigned to: SC-00, Status: AES43-2000 stabilized
Intent: Stabilization, Initiated: 2010, Target: none
Current goal: none, Goal date: none
Project scope: This AES 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.
Assigned to: SC-00, Status: Ballot to stabilize AES45-2001 approved
Intent: Review, Initiated: 2017, Target: Continuing
Current goal: Stabilized, Goal date: Continuing
Project scope: This document provides a means for communicating basic radio traffic and continuity data via a dedicated chunk embedded in broadcast-wave-compliant WAVE files. The new RIFF chunk supports most common data used in radio traffic and continuity systems, while the WAVE format itself supports most sampling frequencies, sample widths, and audio formats.
Assigned to: SC-00, Status: AES46-2002 stabilized
Intent: Stabilized , Initiated: 2007, Target: none
Current goal: none, Goal date: none
Project scope: to set a standard practice for mapping multiple channels of audio in linear PCM or AES3 format into an ATM transport system, for the purposes of interconnecting large numbers of sources and destinations, with best performance for latency, jitter and other relevant factors.
Assigned to: SC-00, Status: Ballot to stabilize AES47-2006 approved
Intent: Review, Initiated: 2017, Target: Continuing
Current goal: Stabilized, Goal date: Continuing
Project scope: 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.
Assigned to: SC-05-05, Status: AES48-2019 published
Intent: Standard, Initiated: 2018, Target: 2024
Current goal: ongoing review, Goal date: 2024
Project scope: This standard concerns the care and handling of magnetic recording tape during use. It addresses the issues of physical integrity of the medium necessary to preserve access to the audio or other data (information) recorded on the tape. This standard recommends handling procedures to maximize the effective life of magnetic tape.
Assigned to: SC-00, Status: AES49-2005 stabilized. Also published as ISO 18933:2006
Intent: Stabilize, Initiated: 2012, Target: none
Current goal: none, Goal date: none
Project scope: To specify a bi-directional, point-to-point connection for up to 48 channels of digital audio in a variety of formats. The link uses a single Category 5 (or better) structured-wiring data cable, and is designed for use in a studio environment. The system uses the 100Base-TX physical layer of Fast Ethernet (IEEE 802.3) to transfer framed audio data. Audio synchronisation is maintained by transmitting an audio clock signal in parallel with the audio data utilising available signal pairs on the cable.
Assigned to: SC-02-02, Status: Revised to eliminate insensitive terms
Intent: Review, Initiated: 2020, Target: 2025
Current goal: UnStabilize, Goal date: Revision
Project scope: Specifies an encapsulation of ATM cells in Ethernet packets, so that ATM equipment may be connected using hardware specified for Ethernet networks.
Assigned to: SC-02-02, Status: Revised to eliminate insensitive terms
Intent: Review, Initiated: 2020, Target: Continuing
Current goal: Review, Goal date: Revision
Project scope: This standard specifies the method for inserting unique identifiers into the user data area of an AES3 stream. This specifically covers the use of UUID as well as a basic or extended SMPTE UMID.
Assigned to: SC-02-02, Status: Reaffirmed in 2022
Intent: Review, Initiated: 2017, Target: 2027
Current goal: Status report, Goal date: Continuing
Project scope: This standard specifies how the timing markers specified in 4.1.4.1.1 and 4.5 of AES47 may be used to associate an absolute timestamp with individual audio samples. It does not specify how the recipient of a call is informed whether the timing markers will conform to this standard or merely meet the minimum specifications laid down in AES47.
Assigned to: SC-02-02, Status: Reaffirmed
Intent: Review, Initiated: 2018, Target: 2028
Current goal: Review, Goal date: 2028
Project scope: This standard specifies requirements for, and summarizes general considerations relative to, the connection of cable shields within connectors attached to portable balanced cables for the transmission of audio, taking into account measures commonly necessary for the preservation of electromagnetic compatibility (EMC) at both audio and radio frequencies. This standard shall apply to all portable cables not integral to equipment. This standard does not apply to fixed connector panels, portable connector panels, jack fields (patch bays), nor to microphone splitters. This standard does not address issues of safety.
Assigned to: SC-05-05, Status: Due for reaffirmation in 2024
Intent: Review, Initiated: 2013, Target: 2024
Current goal: none, Goal date: Continuing
Project scope: This standard specifies requirements for, and summarizes general considerations relative to, the shielding of balanced audio interconnections within fixed and portable connector panels, jack fields (patch bays) and within passive microphone splitters, taking into account measures commonly necessary for the preservation of electromagnetic compatibility (EMC) at both audio and radio frequencies. Active splitters are not covered by this standard. This standard does not address issues of safety.
Assigned to: SC-05-05, Status: Due for reaffirmation in 2024
Intent: Review, Initiated: 2013, Target: 2024
Current goal: none, Goal date: Continuing
Project scope: This standard specifies requirements for, and summarizes general considerations relative to, the shielding of balanced microphone-level outputs of audio equipment, taking into account measures commonly necessary for the preservation of electromagnetic compatibility (EMC) at both audio and radio frequencies. Wired microphones, including capacitor microphones, are not covered by this standard, and shall conform to AES48. This standard does not address issues of safety.
Assigned to: SC-05-05, Status: Due for reaffirmation in 2024
Intent: Review, Initiated: 2013, Target: 2024
Current goal: none, Goal date: Continuing
Project scope: To specify transport of an MPEG-D bitstream over an AES3 compliant transport. The transport method shall be compatible with an IEC 60958 compliant transport. The standard will not discuss compression algorithms associated with MPEG-D.
Assigned to: SC-02-02, Status: Reaffirmed in 2022
Intent: Review, Initiated: 2012, Target: 2027
Current goal: Review Decision, Goal date: Ongoing
Project scope: to specify unified loudspeaker far-field polar radiation measurement practice to provide data suitable for room acoustic modeling programs
Assigned to: SC-04-03, Status: Due for reaffirmation in 2024
Intent: Review, Initiated: 2014, Target: 2024
Current goal: none, Goal date: Continuing
Project scope: To collect information on all metadata issues pertaining to digital audio objects and all aspects of the digital documentation of digital audio objects. This scope includes field structures to describe and provide access to the audio content contained in digital files. It includes transfer, preservation and restoration information.
Assigned to: SC-03-06, Status: Reaffirmed in 2022
Intent: Review, Initiated: 2022, Target: 2027
Current goal: Continuing, Goal date: Continuing
Project scope: to describe unique requirements for professional audio carried over 1394.
Assigned to: SC-02-12, Status: Stabilized
Intent: Maintenance, Initiated: 2019, Target: None
Current goal: None, Goal date: None
Project scope: To recommended a contact assignment and gender for 25-way D-type connectors used to connect multiple audio signals in balanced analogue or AES3 digital form. Excludes consideration of connector and cable types for specific applications.
Assigned to: SC-05-02, Status: Decide whether to reference AES48 (SC-05-05) for grounding and EMI and clarify screw, terminal and wire definitions
Intent: Review, Initiated: 2012-08, Target: 2028
Current goal: Review, Goal date: 2028
Project scope: The core set of metadata presented in this specification is based on the EBUCore, itself an extension to the Dublin Core. It is a minimum list of attributes characterizing audio and / or video media resources. The set of metadata defined in this specification has been identified as being the minimum information needed to describe radio and television content.
Assigned to: SC-03-07, Status: AES60id published
Intent: Review, Initiated: 2011, Target: 2025
Current goal: Harmonize with current EBU T3293, Goal date: 2024-5
Project scope: to specify a ruggedized data connector that is compatible with 8-way modular connectors, also called RJ-45 connectors. Basic physical properties and mechanical dimensions are specified in order to enable proper mating and locking and to ensure reliable electrical contact in the locked position. No further requirements are specified with respect to electrical and other mechanical properties.
Assigned to: SC-05-02, Status: Comment period closed
Intent: Review, Initiated: 2012-08-03, Target: 2029
Current goal: Review, Goal date: Ongoing
Project scope: to establish a standard for the connector type and contact assignment for microphones having four or more balanced analog output channels, as used in surround sound applications. It will include specifications for marking and identification for the audio channels. It will include recommendations for cable type and detailed wiring.
Assigned to: SC-05-02, Status: Reaffirmed
Intent: Review, Initiated: 2012, Target: 2028
Current goal: Review, Goal date: 2028
Project scope: This standard shall apply to three-pin and five-pin circular connectors, generically known as miniature XLR-type, used for the connection of balanced audio signals between sound system components for professional audio and similar applications, regardless of function, type, or level of the signal. It specifies the application and polarity of signals for these connectors. This standard does not pertain to the dimensions of the connectors and does not consider safety issues arising from usage.
Assigned to: SC-05-02, Status: Reaffirmed
Intent: Review, Initiated: 2012, Target: 2028
Current goal: Review, Goal date: 2028
Project scope: This standard defines an interoperability mode for transport of high-performance audio over networks based on the Internet Protocol. For the purposes of the standard, high-performance audio refers to audio with full bandwidth and low noise. These requirements imply linear PCM coding with a sampling frequency of 44,1 kHz and higher and resolution of 16 bits and higher. High performance also implies a low-latency capability compatible with live sound applications. The standard considers latency performance of 10 milliseconds or less.
Assigned to: SC-02-12, Status: Editorial changes are needed
Intent: Review, Initiated: 2023, Target: 2028
Current goal: Review, Goal date: Continuing
Project scope: This document specifies an improved shell-to-shell connection with regard to EMC by means of a circumferential contact established by the female XLR type connector.
Assigned to: SC-05-02, Status: Due for reaffirmation in 2024
Intent: Review, Initiated: 2014-11-17, Target: 2024
Current goal: Status report, Goal date: Continuing
Project scope: This document standardizes a file format to exchange space-related acoustic data in various forms. The format is designed to be scalable to match the available rendering process. The format is designed to be sufficiently flexible to include source materials from different databases.
Assigned to: SC-02-08, Status: Review published document for corrections
Intent: Revision, Initiated: 2022, Target: 2027
Current goal: Review, Goal date: Continuing
Project scope: AES70 defines a scalable control-protocol architecture for the control and monitoring of professional media networks. AES70 addresses device control and monitoring only; it does not define standards for transporting streaming media or for describing media content. This Part 1 describes the models and mechanisms of the AES70 Open Control Architecture. These models and mechanisms together form the AES70 Framework. This document should be read in conjunction with Part 2, Class Structure and Part 3, TCP/IP communications protocol.
Assigned to: SC-02-12, Status: Published
Intent: Review, Initiated: 2023, Target: 2024
Current goal: Revised standard, Goal date: Continuing
Project scope: AES70 defines a scalable control-protocol architecture for professional media networks. X210 addresses device control and monitoring only; it does not define standards for streaming media transport. AES70 is divided into a number of separate parts. This Part 2 specifies the control class structure for X210 that defines the control and monitoring functional capabilities of the standard and should be read in conjunction with Part 1, Framework.
Assigned to: SC-02-12, Status: Published
Intent: Review, Initiated: 2023, Target: 2024
Current goal: Revised standard, Goal date: Continuing
Project scope: AES70 defines a scalable control-protocol architecture for professional media networks. AES70 addresses device control and monitoring only; it does not define standards for streaming media transport. AES70 is divided into a number of separate parts. This Part 3 specifies a protocol implementation for TCP/IP networks. It should be read in conjunction with Part 1, Framework, and Part 2, Class Tree.
Assigned to: SC-02-12, Status: Published
Intent: Review, Initiated: 2023, Target: 2024
Current goal: Revised standard, Goal date: Continuing
Project scope: This AES document addresses OTT and OVD Loudness challenges by leveraging already established Over-the-Air Television practices, providing guidelines focused on the Loudness and Content Dynamic Range for connected set-top and mobile devices. When followed, these guidelines will: • Provide consistent Loudness across different Programs, service providers and advertising Content • Provide appropriate playback Loudness Range for different devices and listening conditions • Prevent excessive Peak Limiting or other processing from degrading the audio quality • Preserve the artistic intent of wide Dynamic Range content (movies, drama, live music) • Improve the listening experience
Assigned to: SC-02-12, Status: Reaffirmed
Intent: Review, Initiated: 2017-10, Target: 2028
Current goal: None, Goal date: continuing
Project scope: This standard documents 8P8C (RJ45) pin-outs commonly used in analog and digital professional audio applications, including channel/link order, signal polarity and phantom power compatibility. Conformance with this standard will identify mutually compatible devices, enabling users to avoid problems when employing equipment from multiple manufacturers.
Assigned to: SC-05-02, Status: Due for reaffirmation in 2024
Intent: Standard, Initiated: 2019, Target: 2024
Current goal: Maintenance, Goal date: 2023
Project scope: This document considers factors affecting the interchangeability of measurement data from simple loudspeaker comparison chambers and discusses some performance capabilities.
Assigned to: SC-04-03, Status: Due for reaffirmation in 2024
Intent: Review, Initiated: 2019-08-23, Target: 2024
Current goal: none, Goal date: Ongoing
Project scope: This document sets forth technical recommendations for media network directories and directory-related services and mechanisms such as network discovery. It is hoped that this document will inform future industry directory and directory services standards.
Assigned to: SC-02-12, Status: Review for reaffirmation or revision
Intent: Review, Initiated: 2019, Target: 2024
Current goal: Idle, Goal date: 2024
Project scope: This standard specifies a method for measuring the maximum linear sound levels of a loudspeaker driver or system. It uses a mathematically derived test signal that effectively emulates the dynamic characteristics of music as a function of frequency as well as its spectral content.
Assigned to: SC-04-03, Status: 2023 version published
Intent: Review, Initiated: 2022-02-20, Target: 2028
Current goal: Maintenance, Goal date: Continuing
Project scope: These guidelines are intended to be one of a series and covers only one scenario - the collection of speech samples for speaker recognition at a temporary, non-laboratory location. One example of this would be the collection of speech samples from subjects during some type of field activity. The field activity could be associated with a range of purposes, such as law enforcement, intelligence, military or sociological. These guidelines presume portable resources and somewhat limited time to perform the collection. It also assumes that the interviewer is fluent in the subject’s language, or that an interpreter is present who is both fluent in the interviewer’s and subject’s languages and cognizant of the goals of the interview. These guidelines do not deal with details related to the handling, transmission, storage, or preservation of collected data. Specifically: • It does not deal with any issues related to collection, storage, or protection of personal information. • It does not recommend how to protect speaker recognition analysts from seeing or hearing subject identifying information which could result in biased analysis results. These guidelines also do not deal with possibly important concerns such as personnel and equipment security, power sources for equipment, etc. The alleviation of such highly situation specific concerns is the responsibility of the guideline’s user or their agency.
Assigned to: SC-03-12, Status:
Intent: Review, Initiated: 2022-02-20, Target: 2027
Current goal: Revised Standard, Goal date: Continuing
Project scope: This document recommends appropriate loudness for streaming and On-Demand File Playback content to: * Optimize distribution and the listener experience * Recognize the evolutionary process by recommending a Distribution Loudness that is well-suited for current fixed and mobile listening, while creating awareness for Loudness Management using metadata encoded in streams and in future ANSI/CTA-2075 devices * Recommend a consistent real-time Distribution Loudness for streams * Ensure loudness consistency of on-demand files and online streams from different sources * Provide loudness consistency within a specific online stream composed of different Long-form Content and Interstitials, which will alleviate loudness jumps when Interstitial Content (ads, promos, PSA’s) is inserted * Prevent excessive peak limiting or other processing from degrading perceived audio quality * Avoid loudness wars * Encourage the use of audio metadata Note that this document does not recommend Loudness Range (LRA), device target playback loudness or device dynamic range.
Assigned to: SC-02-12, Status: Review for reaffirmation or revision
Intent: Review, Initiated: 2021–9–24, Target: 2028
Current goal: , Goal date:
Project scope: to establish, expand, and improve the practice for the design and use of plane-wave tube measurement techniques, as recommended in section 2.2.1 of AES2-1984, "Recommended Practice Specification of Loudspeaker Components Used in Professional Audio and Sound Reinforcement."
Assigned to: SC-04-03, Status: Reaffirmed
Intent: Review, Initiated: 2012, Target: 2027
Current goal: Status Report, Goal date: Ongoing
Project scope: to present information intended to assist a user to understand and use the AES3 digital audio interface. The document covers four basic topics: general, operational, electrical, and troubleshooting.
Assigned to: SC-02-02, Status: Revised to eliminate insensitive terms
Intent: Review, Initiated: 2020, Target: Continuing
Current goal: Revision, Goal date: Revision
Project scope: This document provides guidelines for characterizing the uniformity of scattering produced by surfaces from measurements or predictions of scattered polar responses. In this context, the surface scattering is quantified in terms of a single diffusion coefficient.
Assigned to: SC-00, Status: Stabilized document
Intent: Stabilise, Initiated: 2007, Target: none
Current goal: none, Goal date: none
Project scope: to specify measurements of audio quality in a personal computer (PC) environment.
Assigned to: SC-00, Status: Ballot to stabilize AES-6id approved
Intent: Review, Initiated: 2017, Target: Continuing
Current goal: Stabilized, Goal date: Continuing
Project scope: to provide guidance for areas of application of the MADI standard (AES10) that might be unclear. The information presented in these guidelines is not part of the AES10 standard. It is intended to assist a user to understand and use the MADI interface. The AESSC hopes these guidelines will further the design of mutually compatible interfaces and encourage consistent operational practices.
Assigned to: SC-02-02, Status: Revised to eliminate insensitive terms
Intent: Review, Initiated: 2020, Target: 2025
Current goal: Revision, Goal date: Revision
Project scope: This information document provides suggested guidelines for four extended-term storage environments for archives that contain a variety of recording media, based on the corresponding ISO storage standards for those media. Whenever possible, the storage environments in the ISO storage standards should be followed. This technical report does not replace these ISO storage standards. In addition to environment recommendations, those standards also include other vital information pertinent for the long-term keeping of recording materials such as inspection, housing, and handling guidelines.
Assigned to: SC-00, Status: AESSC ballot proposition approved; AES-11id stabilized
Intent: Stabilized, Initiated: 2013, Target: None
Current goal: None, Goal date: None
Project scope: This information document reviews various ways of characterizing and quantifying jitter, and refines several of them for audio purposes. It also attempts to present a common, unambiguous terminology. Its focus includes wideband jitter, baseband jitter, jitter spectra, period jitter, long-term jitter and jitter signatures. Comments are made on jitter transfer through phase-locked loops and on the jitter susceptibility of audio converters.
Assigned to: SC-02-01, Status: Revised to eliminate insensitive terms and standardize use of dBc/Hz throughout
Intent: Review, Initiated: 2020, Target: 2025
Current goal: Revised document, Goal date: 2025-05
Project scope: This AES Information document discusses mechanical compatibility issues between 6,35 mm (quarter-inch) jack connectors with various profiles, including those defined given in IEC60603-11 and 'B-gauge' plugs. It recommends key jack dimensions for optimum compatibility with a range of "quarter-inch", or 6.35 mm, TRS plug types.
Assigned to: SC-00, Status: Ballot to stabilize AES-14id-2010 approved
Intent: Review, Initiated: 2017, Target: Continuing
Current goal: Stabilized, Goal date: Continuing
Project scope: Abstract: This information document is aimed at the archivist, librarian or technician who needs to make transfers from mechanical sound records made during the past 100 years or more. Each period had its own technological style and there was little effective standardisation until the late 1940s. Making satisfactory and efficient transfers from these records means choosing an appropriate stylus to suit both the style of manufacture and also the physical condition of the particular specimen. This brief document sets out some guidance on stylus choice for vertical recordings on cylinders and discs, coarse-groove lateral recordings on disc, and comparatively modern microgroove records in both mono and stereo.
Assigned to: SC-00, Status: LB14111101 closed, stabilization approved
Intent: Stabilization, Initiated: 2014, Target: Continuing
Current goal: Status report, Goal date: Continuing
Project scope: This information document recommends a method for authoring a BD ROM to enable playback in consumer systems without a video screen, and to provide simple track selection from the remote control.
Assigned to: SC-00, Status: Stabilized
Intent: Review, Initiated: 2017, Target: 2023
Current goal: Stabilization, Goal date: Continuing
Project scope:
Assigned to: SC-00, Status: Stabilized document
Intent: Stabilized , Initiated: 1997, Target: 2008
Current goal: Status report, Goal date: continuing
Project scope: This document describes the style for levels standardized in IEC 60027-3, Letter symbols to be used in electrical technology — Part 3: Logarithmic quantities and units, and the power and voltage level clauses of IEC 60268-2, Sound system equipment — Part 2: Explanation of general terms and calculation methods, and summarizes and reviews the presently used notations for expressing levels in condensed or abbreviated form, what expressions are used, and what quantities and reference quantities are implied.
Assigned to: SC-00, Status: Project stabilized following ballot LB12060101
Intent: Stabilization, Initiated: 2004, Target: none
Current goal: Stabilization, Goal date: none
Project scope: to review the informative report intended to to accompany AES47, transmission of digital audio over asynchronous transfer mode (ATM) networks.
Assigned to: SC-00, Status: Stabilized document
Intent: Stabilized, Initiated: 2007, Target: 2017
Current goal: Status report, Goal date: none
Project scope: Guidelines for AES50, High-resolution multi-channel audio interconnection (HRMAI)
Assigned to: SC-02-02, Status: Revised to eliminate insensitive terms
Intent: Report, Initiated: 2020, Target: 2025
Current goal: Review, Goal date: Revision
Project scope: This document is intended to provide guidance on synchronisation issues to implementers of systems in which an audio signal originated in digital form in one location is transmitted over a digital network to another location.
Assigned to: SC-02-02, Status: Revised to eliminate insensitive terms
Intent: Review, Initiated: 2020, Target: none
Current goal: none, Goal date: none
Project scope: This document discusses primary issues and outlines some elementary considerations concerned with the standardisation of multiple metadata sets for audio and their relationship with externally-standardised sets.
Assigned to: SC-03-07, Status: No action requested or required
Intent: Review, Initiated: 2007, Target: Continuing
Current goal: Status report, Goal date: continuing
Project scope: to identify and clarify use cases for networks in professional audio applications for Recording , Live sound, and Installations
Assigned to: SC-02-12, Status: Revision halted until effort available to re-start
Intent: Revision, Initiated: 2008-08-25, Target: 2013
Current goal: PTD, Goal date: 2013-05
Project scope: to specify methods for the measurement of audio-video synchronisation ("lip sync") error. Consideration to be given to test signals suitable for use either with, or without, specialised measurement equipment. In its simplest form, an electronically generated clapper-board signal may be all that is required. The implications of different camera and display types on the definition of synchronisation will be taken into account.
Assigned to: SC-00, Status: Stabilized document
Intent: Stabilized, Initiated: 2009-12-03, Target: 2018
Current goal: Status Report, Goal date: Continuing
Project scope:
Assigned to: SC-00, Status: Stabilized document
Intent: Stabilized, Initiated: 2014-11-24, Target: 2014
Current goal: Status report, Goal date: continuing
Project scope: Report the output of the AES67 plugfest at NPR Washington, 2015-11.
Assigned to: SC-00, Status: Stabilized document
Intent: Stabilized, Initiated: 2015, Target: Continuing
Current goal: Status report, Goal date: Continuing
Project scope: Three profiles for Precision Time Protocol (PTP) might potentially be used in the professional media environment: the Peer-to-Peer Default PTP Profile of IEEE Std 1588-2008, the Media Profile of AES67 and the SMPTE Profile of SMPTE ST 2059-2. This report compares the profiles and identifies features and parameter ranges that should enable interoperability among equipment conforming to the different profiles.
Assigned to: SC-02-12, Status: Revised version published
Intent: Report, Initiated: 2016-04-23, Target: none
Current goal: none, Goal date: none
Project scope: This report summarizes the AES67 interoperability test event ("plugfest") held at the headquarters of British Broadcasting Corporation (BBC), London on 13 to 16 February 2017. Twenty four companies tested 36 products against each other to confirm interoperability. The results are presented, together with the results of a range of tests of optional operational modes described in the standard.
Assigned to: SC-02-12, Status: Report will be left unchanged
Intent: Report, Initiated: 2017-01-16, Target: none
Current goal: none, Goal date: none
Project scope: To report considerations relating to the indication of peak audio signal levels in order to avoid overloading digital media, and to propose a recommended practice. The project does not address issues of subjective loudness; nor does it consider measurements of volume or peak programme level as defined in IEC 60268-17 and 60268-10
Assigned to: SC-02-01, Status: Revised with editorial changes
Intent: Review, Initiated: 2013, Target: Continuing
Current goal: Status Report, Goal date: 2023
Project scope: to develop consensus among manufacturers and users for format and content of microphone specifications more detailed than those in IEC 60268-4, as a supplement to the specifications issued to that standard.
Assigned to: SC-04-04, Status: This work has shifted to supporting the IEC 60268-4.
Intent: Generate input for liaison, Initiated: 1998, Target: 2021
Current goal: ongoing, Goal date: ongoing
Project scope: To collect information on all metadata issues pertaining to digital audio objects and all aspects of the digital documentation of digital audio objects. This scope includes field structures to describe and provide access to the audio content contained in digital files. It includes transfer, preservation and restoration information.
Assigned to: SC-03-07, Status: Examples need to be updated, and the chair will go through the original document to make sure that all properties is covered either by EBU Corepluss or the X-098-C extension
Intent: Standard, Initiated: 1999-12, Target: 2024
Current goal: Draft for comment, Goal date: None
Project scope: Liaison with ITU-R Working Party 6C, Measurement aspects
Assigned to: SC-02-01, Status: No action requested or required
Intent: Liaison, Initiated: 2001-03, Target: Continuing
Current goal: Status report, Goal date: Continuing
Project scope: Informal liaison relationship
Assigned to: SC-03-06, Status: Reporting of IASA activities to working group
Intent: Ongoing, Initiated: 2003-01, Target: Ongoing
Current goal: Status report, Goal date: Ongoing
Project scope: To develop a standard for signal levels and circuit impedances of audio system components and for the specification of these quantities in product data sheets [balanced, unbalanced]
Assigned to: SC-05-05, Status: Draft available for group review
Intent: Standard, Initiated: 2005, Target: 2025
Current goal: Working draft, Goal date: 2024
Project scope: This document specifies a format for communicating file- and project-based production metadata between various stages of production and post production workflow. It may also have utility in other areas. The format, iXML, uses the XML standard for communication of tagged metadata. The XML-formatted metadata may be written to a data chunk inside a Broadcast Wave file, such as AES31-2, or some other suitable file type. iXML standardises the interchange of production information, and provides an extensible framework to add new private or public data as needs develop, while permitting the specification to be expanded in a consistent and compatible manner.
Assigned to: SC-03-07, Status: This task waits for input reference files.
Intent: Standard, Initiated: 2006-01, Target: 2024
Current goal: PTD, Goal date: 2024
Project scope: This document defines a set of characteristics of loudspeaker systems for inclusion in manufacturers’ specification documents, and identifies the relevant methods of measurement. It considers loudspeaker *systems* for professional applications. They may be combinations of active and passive sub-systems. It is intended for users and designers of loudspeaker system installations.
Assigned to: SC-04-03, Status: Need personel to lead the development effort. If not, it will be abandoned
Intent: Standard, Initiated: 2017, Target: 2025
Current goal: Draft, Goal date: 2024
Project scope: To consider the revision of IEC 60268-3, "Sound-system equipment, Part 3: Amplifiers", Edition 4.
Assigned to: AESSC-Amplifiers, Status: Comments in response to 100/1846/CD to M Furukawa
Intent: Review, Initiated: 2011-05-01, Target: 2011-06-30
Current goal: Status report, Goal date: 2011-07-14
Project scope: To specify sets of measurement methods and performance criteria to characterize the performance of audio analog-to-digital converters (ADCs) used in archiving and preservation workflows. This standard considers the production of files using the highest-quality ADC devices.
Assigned to: SC-02-01, Status: Waiting for SC-03-06 feedback
Intent: Standard, Initiated: 2013-08-20, Target: 2022
Current goal: Draft information document, Goal date: 2022-12
Project scope: to document relevant parameters affecting the audience experience of a sound system in a generalized room, and identify appropriate objective methods of measurements to quantify them. The intent is to identify tools and procedures for a technician to measure the performance of a loudspeaker system in a room, and then support accurate and reliable calibration of this system to a specified performance.
Assigned to: SC-04-08, Status: Now meeting every other week to get more active participation and drive a direction
Intent: Information Document, Initiated: 2013-03-04, Target: 2025
Current goal: New Draft, Goal date: 2024
Project scope: to specify a method of measurement for frequency and impulse response of sound systems in auditoria.
Assigned to: SC-04-08, Status: Project remains postponed until there is some output of X218
Intent: Standard, Initiated: 2013-03-04, Target: 2025
Current goal: First draft, Goal date: 2024
Project scope: to create a guide for manufacturers of audio hardware, software and computer platforms describing best practices for the management of metadata embedded in audio files.
Assigned to: SC-03-07, Status: Currently idle, contact C Lacinak to revive
Intent: Information Document, Initiated: 2013-11-04, Target: 2020
Current goal: PTD, Goal date: tba
Project scope: Control data sets in OCA (AES 70) for wired and wireless microphones
Assigned to: SC-04-04, Status: Put on hold for lack of interest in AES42
Intent: Information Document, Initiated: 2016-03-24, Target: 2020
Current goal: PTD, Goal date: 2016-09
Project scope: To define a standardized method for transporting metadata associated with audio in an AES67 stream. The audio metadata shall be transported in a separate stream that is sent in parallel to AES67 streams rather than part of the AES67 stream. The standard shall define synchronization between the audio metadata transport and the associated AES67 transport. The transmission method shall be low latency and have a level of network performance equivalent to AES67. Within the scope is formatting of the streaming audio metadata for transport. Suggested is an open standards based framework that supports both static and dynamic, time synchronous metadata that is optimized for live workflow applications. The standard shall consider all use cases for metadata associated with AES67, support existing AES audio metadata standards, and be extensible for future metadata requirements. The standard will consider binding between the audio metadata transport and the associated AES67 transport.
Assigned to: SC-02-12, Status: Task Group is restarting activity
Intent: Standard, Initiated: 2017-05-18, Target: 2023
Current goal: Committee draft, Goal date: 2023-10
Project scope: Define a new standard in the AES70 family for using the AES70-CM4 connection management mechanism to set up, manage, and tear down AES67 and SMPTE ST 2110-30 media stream connections.
Assigned to: SC-02-12, Status: Draft Call for Comment published
Intent: Standard, Initiated: 2017/10/21, Target: 2024
Current goal: Standard, Goal date: 2024
Project scope: This effort identifies practices for estimation of annoyance of man-made sounds in the presence of background sounds, for automotive/aircraft, consumer, professional and land use planning applications. It includes intentionally generated sounds such as music and sporting events, and unintentional sound such as transportation system noise. It is to include auditory masking, not only integrated sound pressure. It considers relative disturbance but does not set thresholds for acceptability. It does not consider health impacts of sound.
Assigned to: SC-04-09, Status: start work on an information document surveying the existing standards and tools available
Intent: Report, Initiated: 2018, Target: 2025
Current goal: Draft, Goal date: 2024
Project scope: This standard specifies requirements for, and summarizes general considerations relative to, the shielding of 25-way D-type connectors in balanced audio applications, taking into account measures commonly necessary for the preservation of electromagnetic compatibility (EMC) at both audio and radio frequencies. This standard does not address issues of safety.
Assigned to: SC-05-05, Status: Still in discussion
Intent: Standard, Initiated: 2019, Target: 2025
Current goal: Draft, Goal date: 2024
Project scope: The document will specify a common way to control routing of AVDECC/Milan audio streams using an adaptation of the AES70 CM4 feature set. The document will also define a programmatic interface between AES70 and AVDECC software drivers that is suitable for implementing the defined adaptation.
Assigned to: SC-02-12, Status: Draft Call for Comment published
Intent: Standard, Initiated: 2020-03-17, Target: 2024
Current goal: Standard, Goal date: 2024
Project scope: Implementation of a recommended workflow for the creation and archiving of digital archival materials from (analogue but also digital) professional audio production formats, such as: • Multichannel - multitrack • Quadraphonic formats (tape and disc) • Noise reduction systems • Surround sound
Assigned to: SC-03-06, Status: Initial development
Intent: Information Document, Initiated: 2022-01-09, Target: 2023
Current goal: Draft, Goal date: 2023
Project scope: This standard specifies the use of AES70 to manage Audinate Dante® media stream connections between devices, where AES70 is used to control at least one of the devices, while other devices may be controlled using Audinate mechanisms or other out-of-scope means.
Assigned to: SC-02-12, Status: Regular meetings to generate text
Intent: Standard, Initiated: 4/14/2023, Target: 2024
Current goal: Draft, Goal date: 2024
Project scope: The purpose of this standard is to formulate a standard operating procedure (SOP) in the authentication of digital audio recordings intended to be offered as evidence or otherwise utilized in civil, criminal, or other fact-finding proceedings. We hope to include a Best Practices within this guideline to stay current by focusing on the digital medium.
Assigned to: SC-03-12, Status: Work ongoing
Intent: Standard, Initiated: 2023-09-12, Target: 2025
Current goal: Draft, Goal date: 2024-09-01
Project scope: Describe the preferred way to implement connection management, assure consistent audio quality, and provide for interoperable audio and feature control sets for the MAC convergence and application layers of UWB devices intended for high-quality audio use. Provide extensions to IEEE 802.15.4ab standard which defines connection, operating features and command structure in order to provide an interoperable interface between UWB audio capture and playback devices.
Assigned to: SC-02-02, Status: Regular meetings continue, material is shared outside AES Standards file repository
Intent: Standard, Initiated: 2023-09-18, Target: 2024-12-31
Current goal: Draft, Goal date: 2024-09-08
Project scope: Define the number of pins used for each channel and the pin configuration for connecting +, -, signal conductors and cable shield for linear PCB (aka euroblock) connectors.
Assigned to: SC-05-02, Status:
Intent: Standard, Initiated: 2024-02-09, Target: 2024-06-30
Current goal: Draft, Goal date: 2024-03-30
