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Unformatted text preview: computer CD Audio 44.1 KHz 16-bit 2-channel Converting a CD to mp3 saves space A 5 minute song would take up about half of a gig Frequency analysis Psychoacoustics o The study of how humans hear sound o Humans can only hear at certain frequencies Huffman encoding MP3 o Lousy compression because we lose information Compression techniques AAC o Used by apple WMA o Used by microsoft 28/09/2007 15:06:00 28/09/2007 15:06:00...
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- Fall '07