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Does Wavpack (or FLAC) support compression on 10 or 12 bit waveforms?
lkeagle
post May 13 2013, 21:46
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I am investigating compression alternatives (beyond gzip/deflate/etc.) for short clips of 10 or 12 bit audio-frequency waveforms. I can't find any reference in the documentation that wavpack supports anything other than 16/24 bit waveforms.

I haven't attempted any tests yet, but does anyone know if this is possible with wavpack (or other lossless codecs like FLAC)? I could pad to 16bit if necessary for a test, but it would be far less than ideal to add a 33% overhead before compression even begins.
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ktf
post May 14 2013, 07:57
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How would 10 or 12 bit even be packed? (It can't be packed in WAV, right?) Anyway, the FLAC specification has room for any bitdepth between 4 and 32 bit, but I'm not sure whether the reference encoder accepts those, I never tried.

As others already said, padding is very well possible, because both WavPack and FLAC search for wasted bits, thats the method lossyWAV works. Overhead will be almost non-existent.


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Music: sounds arranged such that they construct feelings.
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