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How to detect dialed signals dtmf

Asked by kyin gab on 30 Nov 2012


If given Fs(sampling frequency) and t(period for each signal), How can I detect the dialed numbers in a dtmf signal using fft.



kyin gab


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1 Answer

Answer by Wayne King on 30 Nov 2012


kyin gab on 30 Nov 2012

seen it many times. I am a beginner and honestly, MatLab did not help matters there.

Thank you.

Walter Roberson on 10 Mar 2013

It appears the above moved. One Simulink based example is now at

Wayne King

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