How to detect dialed signals dtmf

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kyin gab 2012-11-30

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https://ww2.mathworks.cn/matlabcentral/answers/55280-how-to-detect-dialed-signals-dtmf

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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Wayne King 2012-11-30

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https://ww2.mathworks.cn/matlabcentral/answers/55280-how-to-detect-dialed-signals-dtmf#answer_67066

Have you seen this example?

https://www.mathworks.com/help/signal/examples/dual-tone-multi-frequency-dtmf-signal-detection.html

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kyin gab 2012-11-30

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

Thank you.

Walter Roberson 2013-3-10

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

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Signal Processing Signal Processing Toolbox Transforms, Correlation, and Modeling Transforms DTMF

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