[MP3 ENCODER] MP3 detection

[Mike Oliphant]

Given a .wav file, I want to determine whether the audio data has ever
been encoded as an MP3 and then decoded back to PCM. Does anyone know if
there is an easy signature to look for? If I look at the power spectrum,
will certain frequencies be reliably affected?

Any suggestions would be much appreciated.

Thanks,

Mike

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Mike Oliphant - Encoding Engineer                  [EMAIL PROTECTED]
Mp3.com - The 21st Century Music Company         http://www.mp3.com

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