MPEG-1 Audio Layer III

E723429
audio coding format digital audio format lossy compression format

MPEG-1 Audio Layer III, commonly known as MP3, is a widely used digital audio encoding format that compresses sound data to significantly reduce file size while maintaining acceptable sound quality.

Jump to: Surface forms Statements Referenced by

Observed surface forms (4)

Surface form Occurrences
MP3 3
MPEG-1 Layer III 1
MPEG-1 Layer III audio 1

Statements (50)

Predicate Object
instanceOf audio coding format ⓘ
digital audio format ⓘ
lossy compression format ⓘ
alsoKnownAs MP3 NERFINISHED ⓘ
associatedWith peer-to-peer file sharing ⓘ
portable MP3 players ⓘ
backwardCompatibleWith MPEG-1 audio decoders (for MPEG-2 Layer III) NERFINISHED ⓘ
channelModes dual channel ⓘ
joint stereo ⓘ
mono ⓘ
stereo ⓘ
commonUse digital audio players ⓘ
internet audio streaming ⓘ
music distribution ⓘ
compressionGoal reduce file size while maintaining acceptable audio quality ⓘ
compressionRatioTypical about 1:10 compared to uncompressed PCM ⓘ
compressionType lossy ⓘ
contains main data ⓘ
scale factors ⓘ
side information ⓘ
definedInStandard ISO/IEC 11172-3 NERFINISHED ⓘ
ISO/IEC 13818-3 NERFINISHED ⓘ
designedFor perceptual audio coding ⓘ
eraOfWidespreadAdoption early 2000s ⓘ
late 1990s ⓘ
fileExtension .mp3 ⓘ
hasFrameStructure yes ⓘ
influenced Advanced Audio Coding NERFINISHED ⓘ
Ogg Vorbis NERFINISHED ⓘ
Windows Media Audio NERFINISHED ⓘ
mediaType audio/mpeg ⓘ
partOf MPEG-1 NERFINISHED ⓘ
MPEG-2 NERFINISHED ⓘ
samplingRateRange 16–48 kHz (MPEG-1/2) ⓘ
standardizedBy IEC NERFINISHED ⓘ
ISO NERFINISHED ⓘ
Moving Picture Experts Group NERFINISHED ⓘ
supports up to 2 audio channels ⓘ
supportsBitrateMode average bitrate ⓘ
constant bitrate ⓘ
variable bitrate ⓘ
supportsMetadataFormat ID3v1 NERFINISHED ⓘ
ID3v2 NERFINISHED ⓘ
typicalBitrateRange 32–320 kbit/s ⓘ
usedIn online music stores (early generations) ⓘ
podcasts ⓘ
ringtones ⓘ
usesHuffmanCoding yes ⓘ
usesPsychoacousticModel yes ⓘ
usesTransform modified discrete cosine transform ⓘ

Referenced by (8)

Full triples — surface form annotated when it differs from this entity's canonical label.

Advanced Audio Coding → competesWith → MPEG-1 Audio Layer III ⓘ
this entity surface form: MP3
MPEG → hasStandard → MPEG-1 Audio Layer III ⓘ
MPEG-1 Layer II audio → lessCommonTodayThan → MPEG-1 Audio Layer III ⓘ
this entity surface form: MPEG-1 Layer III audio (MP3)
MPEG → notableCodec → MPEG-1 Audio Layer III ⓘ
subject surface form: MPEG-1
Advanced Audio Coding → predecessor → MPEG-1 Audio Layer III ⓘ
this entity surface form: MP3
MPEG-1 Layer II audio → successorFormat → MPEG-1 Audio Layer III ⓘ
this entity surface form: MPEG-1 Layer III audio
Advanced Audio Coding → successorTo → MPEG-1 Audio Layer III ⓘ
this entity surface form: MPEG-1 Layer III
MDCT → usedInStandard → MPEG-1 Audio Layer III ⓘ
this entity surface form: MP3