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ISO/IEC 14496-26:2010

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Current

The latest, up-to-date edition.

Information technology — Coding of audio-visual objects — Part 26: Audio conformance
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Published date

05-11-2010

ISO/IEC 14496-26:2010 specifies how tests can be designed to verify whether compressed data and decoders meet requirements specified by ISO/IEC 14496-3. In ISO/IEC 14496-26:2010, encoders are not addressed specifically. An encoder may be said to be an ISO/IEC 14496 encoder if it generates compressed data compliant with the syntactic and semantic bitstream payload requirements specified in ISO/IEC 14496-3.

Characteristics of compressed data and decoders are defined for ISO/IEC 14496-3. The compressed data characteristics define the subset of the standard that is exploited in the compressed data. Examples are the applied values or range of the sampling rate and bitrate parameters. Decoder characteristics define the properties and capabilities of the applied decoding process. An example of a property is the applied arithmetic accuracy. The capabilities of a decoder specify which compressed data the decoder can decode and reconstruct, by defining the subset of the standard that may be exploited in the decodable compressed data. Compressed data can be decoded by a decoder if the characteristics of the compressed data are within the subset of the standard specified by the decoder capabilities.

Procedures are described for testing conformance of compressed data and decoders to the requirements defined in ISO/IEC 14496-3. Given the set of characteristics claimed, the requirements that must be met are fully determined by ISO/IEC 14496-3. ISO/IEC 14496-26:2010 summarises the requirements, cross references them to characteristics, and defines how conformance with them can be tested. Guidelines are given on constructing tests to verify decoder conformance. Some examples of compressed data implemented according to these guidelines are provided as an electronic annex to this document usually together with their uncompressed counterparts (reference waveforms).

Standards Relationship
NEN ISO/IEC 14496-26 : 2010 AMD 4 2016 Identical

BS ISO/IEC 23003-3:2012 Information technology. MPEG audio technologies Unified speech and audio coding
ISO/IEC 23003-3:2012 Information technology MPEG audio technologies Part 3: Unified speech and audio coding
17/30346469 DC : 0 BS ISO/IEC 23003-4 AMD 3 - INFORMATION TECHNOLOGY - MPEG AUDIO TECHNOLOGIES - PART 4: DYNAMIC RANGE CONTROL
SCTE 193-1 : 2014 MPEG-4 AAC FAMILY AUDIO SYSTEM - PART 1: CODING CONSTRAINTS FOR CABLE TELEVISION
TS 101 154 : 2.2.1 DIGITAL VIDEO BROADCASTING (DVB); SPECIFICATION FOR THE USE OF VIDEO AND AUDIO CODING IN BROADCAST AND BROADBAND APPLICATIONS

ISO/IEC 14496-1:2010 Information technology — Coding of audio-visual objects — Part 1: Systems
ISO/IEC 11172-4:1995 Information technology Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s Part 4: Compliance testing
ISO/IEC 14496-11:2015 Information technology Coding of audio-visual objects Part 11: Scene description and application engine
ISO/IEC 14496-3:2009 Information technology Coding of audio-visual objects Part 3: Audio
ISO/IEC 13818-7:2006 Information technology Generic coding of moving pictures and associated audio information Part 7: Advanced Audio Coding (AAC)
ISO/IEC 23003-1:2007 Information technology — MPEG audio technologies — Part 1: MPEG Surround
ISO/IEC 13818-3:1998 Information technology Generic coding of moving pictures and associated audio information Part 3: Audio
ISO/IEC 23003-2:2010 Information technology MPEG audio technologies Part 2: Spatial Audio Object Coding (SAOC)
ISO/IEC 13818-4:2004 Information technology Generic coding of moving pictures and associated audio information Part 4: Conformance testing

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