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MPEG-2 ISO/IEC 13818-3

Description

MPEG-2 ISO/IEC 13818-3

Version date: 
2008
Detailed name: 
Information technology -- Generic coding of moving pictures and associated audio information -- Part 3: Audio
Status: 
Published
Description: 

ISO/IEC 11172-3 (MPEG-1 Part 3) then 13818-3 (MPEG-2 Part 3), commonly known as MP3, is a widely adopted audio format that takes advantage of a lossy compression algorithm in order to reduce the size of audio files. The compression is obtained by reducing the quality (accuracy) of those sound frequencies considered to be beyond the auditory resolution of the average listener. Since no encoding specification is provided by the standard, there are several encoders available for the user who can choose the proper one according to its quality issue (as examples: Constant Bit Rate, Average Bit Rate or Variable Bit Rate). As regards decoding, the specification is included in the ISO/IEC 11172-3 document. Due to the small size of MP3 files, this format became widely diffused over the internet and made peer-to-peer file sharing come possible. ISO/IEC 13818-3 1998 was reviewed and confirmed without revision in 2008. [Citation: http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=26797]

Reference: 
Tags: 
Lossy Compression; MP3; Audio Encoding

Issued by / Owner

NormIdentifier: 
ISO/IEC
Body(ies): 
  • International Electrotechnical Commission
  • International Organisation for Standardisation

Classification

Class: 
Formal
Type: 
File Format Standard
Geographic scope: 
World
Audiovisual lifecycle: 
Access
Archival Storage
Ingest

Sustainability Factors

Licence and Adoption

Licence model: 
AFL-3.0
Licence fee: 
Yes
Community adoption: 
0

Documentation

Available: 
Yes
Text: 

The full detailed document describing the standard is available online through the official ISO site at the adress http://www.iso.org/iso/home/standards.htm or the official IEC site at http://www.iec.ch/

 

Fee: 
Yes
Resources: 
This record was last updated: 
March 1, 2017