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Thread: Flac -> Wav -> Flac

  1. #1

    Join Date
    May 2010
    Posts
    1

    Flac -> Wav -> Flac

    G'day
    I have ripped to FLAC, then converted to WAV. When I convert WAV back to FLAC, the files differ slightly from the original. Why is this?
    Thanks.

  2. #2
    Administrator
    Join Date
    Apr 2002
    Posts
    43,857

    Re: Flac -> Wav -> Flac

    You can only compare uncompressed audio, not a compressed FLAC file (ie the size of the flac file).

  3. #3
    dBpoweramp Guru
    Join Date
    Feb 2007
    Posts
    792

    Re: Flac -> Wav -> Flac

    Quote Originally Posted by jtg2041 View Post
    G'day
    I have ripped to FLAC, then converted to WAV. When I convert WAV back to FLAC, the files differ slightly from the original. Why is this?
    Thanks.
    1) You have not necessarily used the same encoding. There are different compression levels (i.e. "how much time should I spend trying to compress even more?")

    2) The metadata block. Even if the metadata themselves are the same, some applications use padding (i.e. reserving a space of a few kilobytes so that if you change metadata slightly, you don't have to rewrite the entire file).

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