MP3

Digital music file

MP3 is a digital audio compression format that revolutionized how music is stored and distributed.

Standing for MPEG Audio Layer 3, the format dramatically reduces file size by discarding sounds the human ear barely perceives.

MP3 enabled portable music players and file sharing that transformed the music industry: The iPod held thousands of MP3s.

Now used generically for digital audio files regardless of actual format.

compression

lossy

Sacrificing fidelity for size

artifacts · psychoacoustics · quantization · transcoding · aliasing · kbps · compression ratio · kilobits · sampling · decoder

culture

Napster

Pioneering file-sharing service

  • piracySeaborne theft or bootlegging
  • file sharingDistributing digital content online
  • P2PDirect participant-to-participant networking

LimeWire · Kazaa · iTunes · digital revolution · music industry · copyright · torrent · Winamp · 90s · 2000s

format

audio

Transmitted sound content

metadata · sample rate · decoding · tagging · album art · file size · duration · waveform · spectrogram · header

devices

iPod

Cupertino's music device

  • WalkmanPortable personal cassette player
  • ZuneDefunct Microsoft media player
  • earbudsTiny insertable audio devices

headphones · smartphone · SanDisk · flash memory · storage · gigabyte · portable · sync · transfer · dock

Categories
Opposites
audio compression quality

MP3FLAC

Lossless audio compression format

WAV · lossless · CD quality

physical vs. digital medium

MP3vinyl

Synthetic resin plastic

LP · vinyl record · CD · cassette tape · analog recording

audio format era/technology generation

MP3vinyl

Synthetic resin plastic

78 RPM · streaming · live performance · acoustic recording

Phrases
Family

MP3 players

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Everyday, not technical · Rated G