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How to detect dialed signals dtmf

Asked by kyin gab

kyin gab (view profile)

on 30 Nov 2012

Hello,

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

Thanks.

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kyin gab

kyin gab (view profile)

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1 Answer

Answer by Wayne King

Wayne King (view profile)

on 30 Nov 2012

2 Comments

kyin gab

kyin gab (view profile)

on 30 Nov 2012

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

Thank you.

Walter Roberson

Walter Roberson (view profile)

on 10 Mar 2013

It appears the above moved. One Simulink based example is now at https://www.mathworks.com/help/dsp/examples/dtmf-generator-and-receiver.html

Wayne King

Wayne King (view profile)

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