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As per my other comment - Audacity can do this. The representation is called a spectrogram. Edit: Oh and here's a JavaScript one. Haven't tried it as I don't h
by bjackman 12y ago
As per my other comment - Audacity can do this. The representation is called a spectrogram.
Edit: Oh and here's a JavaScript one. Haven't tried it as I don't have a microphone. https://github.com/sebleier/spectrogram.js/tree/master https://github.com/sebleier/spectrogram.js/tree/master