Sound cards

• Audio formats

  • basic types: aiff, au, wav, qt, ra, wma, mp3
  • audio codec and audio compression: lossy (11:1) and lossless (2:1).
  • Uncompressed sound files size (1 minute)
    • 44kHz 16 bits => 10 MB
    • 44kHz 24 bits => 33 MB
  • Compressed using MP3 : 4 minutes => 4 MB (one song)

• Sound players

  • Microsoft media player
  • Real player
  • QuickTime player

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