MPEG-1 Audio Layer III

E723429

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.

All labels observed (9)

How this entity was disambiguated

Statements (50)

Predicate Object
instanceOf audio coding format
digital audio format
lossy compression format
alsoKnownAs MP3
associatedWith peer-to-peer file sharing
portable MP3 players
backwardCompatibleWith MPEG-1 audio decoders (for MPEG-2 Layer III)
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
linked to: ISO/IEC 11172

ISO/IEC 13818-3
designedFor perceptual audio coding
eraOfWidespreadAdoption early 2000s
late 1990s
fileExtension .mp3
hasFrameStructure yes
influenced Advanced Audio Coding
Ogg Vorbis
linked to: Vorbis

Windows Media Audio
linked to: WMA
mediaType audio/mpeg
partOf MPEG-1
linked to: MPEG

MPEG-2
samplingRateRange 16–48 kHz (MPEG-1/2)
standardizedBy IEC
ISO
Moving Picture Experts Group
linked to: MPEG
supports up to 2 audio channels
supportsBitrateMode average bitrate
constant bitrate
variable bitrate
supportsMetadataFormat ID3v1
ID3v2
typicalBitrateRange 32–320 kbit/s
usedIn online music stores (early generations)
podcasts
ringtones
usesHuffmanCoding yes
usesPsychoacousticModel yes
usesTransform modified discrete cosine transform

How these facts were elicited

Referenced by (21)

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

MPEG hasStandard MPEG-1 Audio Layer III
MPEG-1 notableCodec MPEG-1 Audio Layer III
subject linked to: MPEG
Advanced Audio Coding predecessor MP3
linked to: MPEG-1 Audio Layer III
Advanced Audio Coding successorTo MPEG-1 Layer III
linked to: MPEG-1 Audio Layer III
Advanced Audio Coding competesWith MP3
linked to: MPEG-1 Audio Layer III
MDCT usedInStandard MP3
linked to: MPEG-1 Audio Layer III
MPEG-1 Layer II audio successorFormat MPEG-1 Layer III audio
linked to: MPEG-1 Audio Layer III
MPEG-1 Layer II audio lessCommonTodayThan MPEG-1 Layer III audio (MP3)
linked to: MPEG-1 Audio Layer III
MPEG-4 container format supportsCodec MP3
linked to: MPEG-1 Audio Layer III
WMA competesWith MP3
linked to: MPEG-1 Audio Layer III
WAV comparedTo MP3
linked to: MPEG-1 Audio Layer III
MPEG-1 Audio Layer III backwardCompatibleWith MPEG-1 audio decoders (for MPEG-2 Layer III)
linked to: MPEG-1 Audio Layer III
ISO/IEC 11172-3 defines MPEG-1 audio compression
subject linked to: ISO/IEC 11172
linked to: MPEG-1 Audio Layer III
MP3 fullName MPEG-1 Audio Layer III
VLC media player supportsFormat MP3
linked to: MPEG-1 Audio Layer III
ATRAC replacedBy MP3
linked to: MPEG-1 Audio Layer III
Audio and Media Technologies division contributedToStandard MP3
linked to: MPEG-1 Audio Layer III
ISO/IEC 13818-3 specifies MPEG-2 Audio Layer III
linked to: MPEG-1 Audio Layer III
ISO/IEC 13818-3 backwardCompatibleWith MPEG-1 Audio
linked to: MPEG-1 Audio Layer III
Vorbis competesWith MP3
linked to: MPEG-1 Audio Layer III