function pitchwatch(x,Ts) Plot the pitch keys. pitchwatch(x,[Ts]) :: Syntax The array x is the input signal and Ts is the (optional) sampling period. Example on use: [x,Fs] = wavread( Hum.wav ) pitchwatch(x,1/Fs) :: Information Make your own wav-files with the Windows Sound Recorder. Choose the attributes PCM 8000Hz, 16bit, Mono when saving the wav-file

Hum.wav
pitchwatch.m

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