在MATLAB中用Goertzel算法（先用FFT算法，再用goertzel算法，）仿真DTMF的产生与检测的程序。应用于双音多频信号的产生与检测。-in Goertzel algorithm using MATLAB (first using FFT algorithm, reuse goertzel algorithm) simulation DTMF detection with the selection process. Used DTMF signal detection with

GOERTZEL算法,应用于音调检测，能够连续实时的进行FFT处理。,GOERTZEL algorithm, applied to tone detection, continuous real-time be able to deal with the conduct of FFT.

DTMF encoder/decoder using Goertzel algorithm and Biquad filtering

Goertzel algorithm in matlab