Goertzel DFT implementation in C#. This is Goertzel s style of calculating Discrete Fourier Transform, is a windowed transform similar to STFT. This implementation will need some small modification for your use, but I post because it is rare in

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DTMF信号的检测程序，使用GOERTZEL算法实现，可以解码DTMF信号。-DTMF signal detection procedures, using the Goertzel algorithm to achieve, you can decode the DTMF signals.