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You can view it with a spectrogram, audio which has been lossily encoded will have a telltale cutoff in the high frequencies. The lossier the encoding, the lowe
by dmitri_ignat 4y ago
You can view it with a spectrogram, audio which has been lossily encoded will have a telltale cutoff in the high frequencies. The lossier the encoding, the lower the frequency ceiling will be.
- sdenton4 4y agoAnother thing to look for is deleted or very flat energy between harmonics. Reducing bit rate in inter harmonic regions is most of what's meant by 'psychoacoustics.' I imagine low pass filtering depends a bit on which compression you're using. None of these tricks will work for detecting GAN compressed audio, though.