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Why checksum uncompressed audio?
_mē_
post Oct 25 2009, 08:06
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FLAC and Wavpack (likely others too) use error detection codes for uncompressed audio data.
Why not for compressed?

I could find only 2 differences:
-you have to decompress the data to verify correctness, which (sometimes greatly) reduces verification performance
-you have more data to be checksumed, which slightly reduces compression / verification performance

What am I missing?
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odyssey
post Oct 25 2009, 22:28
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What is your goal? You don't need to decode and verify your files every now and then. If you ask me both a checksum of encoded and decoded audio is somewhat useless if you have no reference. AccurateRip is a large database that provides the ability to verify CD-rips using checksums. With CUEtools you can even store verification results to tags.


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Can't wait for a HD-AAC encoder :P
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