Goertzel algorithm algorithm is DTMF signal detection at the core, It uses two poles of the IIR filter calculating the discrete Fourier transform value rapid and effective extraction of the input signal spectrum of information.

Packet : 43680547dtmf_gen_dec.zip filelist
cal_k.m
decoder.m
generator.m
goertzel_algo.m
GUI.fig
gui.m
ReadME.txt
StringNum.m

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