I'm assuming you are tackling the slightly trickier problem of finding individual sound frequencies within the .wav file.

To do this you will have to unpack the time domain data in the .wav (which you can do using Audio::Wav::Read or unpack) and then perform a Fourier transform to get this data into the frequency domain (Math::FFT). I recommend reading up on DSP a bit to learn the theory.

You might also try Audio::Analyzer =)

In reply to Re^3: Compare wav files by temporal
in thread Compare wav files by asha_mail

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