> Why is it that sometimes when I encode a .wav file then decode it
again > the length of the generated file is 2 bytes shorter than the length
of > the source file?
>
> The discrepancy in length occurs in the header and the remainder of
the > data from there on is identical. It seems to me that what appear to
be > length fields in the header is adjusted appropriately.
>
> I suspect that this is not a problem, but it makes using 'cmp' to
prove > that FLAC works for me difficult.
the difference is probably a 18-byte fmt subchunk in the original
vs. a 16-byte in the decoded WAV.
flac isn't a WAV file compressor, it does not store everything
about a WAV file so it can be exactly reproduced, it only stores
the audio, so cmp is not the right way to prove that flac is
working. a better way is to compare the MD5 sum in the .flac
header with the equivalent one from the WAV file, which you can
generate with shntool.
Josh
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