MPEG (Motion Picture Experts Group) Audio

ISO/IEC (International Organization for Standardization / International Engineering Consortium)

perceptual audio coders
auditory masking
irrelevant vs. redundant
psychoacoustic model
spectral components
just noticeable noise-level - masking threshold
time/frequency transform
bit allocation

MPEG Audio Web Page - FAQ and technical info on MPEG audio
Background on MPEG Audio coding (Philips)
MPEG Technology (Philips)
MPEG Audio FAQ Version 9 (MPEG/MIT)

The MPEG standards represent the work of committees over time with varying focus.

MPEG-1    1992

The standard for storage and retrieval of moving pictures and audio on storage media
Coding of moving pictures and associated audio for digital storage media at up to about 1.5 Mb/s

MPEG-2    1994

The standard for digital television
Generic coding of moving pictures and associated audio information

MPEG-2 AAC    1997


The standard for multimedia applications


The content representation standard for information search

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