iTunes 5 now has VBR AAC

Discussion in 'Mac Apps and Mac App Store' started by madmaxmedia, Sep 8, 2005.

  1. madmaxmedia macrumors 68030

    Joined:
    Dec 17, 2003
    Location:
    Los Angeles, CA
    #1
  2. the_freddinator macrumors regular

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    Aug 13, 2005
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    SE PA
    #3
    Sorry- but what exactly is a 'variable bit rate'?
     
  3. WildCowboy Administrator/Editor

    WildCowboy

    Staff Member

    Joined:
    Jan 20, 2005
    #5
    A very basic description...the information content of recorded music is not constant. For instance, periods of silence contain very little information, while loud, thunderous orchestral crescendos contain a lot of information. If you encode your MP3s at something like 128 or 192 kbps, the data rate is constant, and the file uses up more space than it needs to in encoding simple portions of the music. But with VBR encoding, the software looks ahead to see how complex the upcoming section of the song is and encodes it at the appropriate data rate. So you can cut down file sizes, or alternatively keep a similar size but have better quality, because the bits are used where they're needed.

    Edit...Argghh, why type when you can just link... :D
     
  4. the_freddinator macrumors regular

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    Aug 13, 2005
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    SE PA
    #6
    Awesome!! thanks!
     

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