运用FFT技术来综合和分析电话拨号的过程，matlab来分解了这一过程，希望能提供帮助- TOUCHTONE Use FFT to synthesize and analyze telephone dialing The dual tone multi-frequency (DTMF) standard specifies that the tone generated by a button on a telephone key pad is the sum of two sin

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MATLAB,非常有用的程序将fft波形图的数据导出-a procedure to export the data of fft s plot.