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Why checksum uncompressed audio?
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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post Oct 25 2009, 09:12
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The checksum is meant to proof that the decoded data is the same as the source (e.g. wav file). A checksum of the encoded data will only proof that the file hasn't changed. Off course you could have booth.
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