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Finding out if a FLAC or WAVPACK audio file is NOT originally encoded from a lossy source

Sometimes I doubt that FLAC files are made from original music, because of deaf-dumb-blind feelings typical to MP3's, or because turning the highest frequencies on equalizer give no effect on sound. I'm searching for a tool for a quick check of FLAC files, to simply throw away wrong files without having a long unpleasant listening. Do you know any tool which may help?

Community
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Yaroslav
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1 Answers1

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Thanks to the fact that mp3 compression has a perceptual element, mp3's exhibit certain characteristics that can exposed through visual frequency and spectral analysis. In particular, there will be a sharp roll above 16 khz. Note that in mp3's of a very high bit rate, such artifacts may not be at all obvious without an original reference file.

There is a nice run down of the wave analysis process here.

Tau Analyzer tries to automate the process but I can't vouch for how accurate it is in it's assessment.

Thom Wiggers
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bitslave
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