AVR mega16单片机上实现FSK和DTMF解码的程序，信号由AD 7.2K采样，是可用的，但具体使用时需要根据硬件条件对参数略作调整。-mega16 achieve FSK and DTMF decoder procedures, AD 7.2K signal from the sample is available, but the specific use of the hardware required under the right conditions parameters sl

电话DTMF编码解码仿真。有线方式编解码：P2口为显示，P3口为编码的输出-Telephone DTMF codec simulation. Wire codec: P2 mouth for the show, P3 mouth for encoding output

dtmf signaling source code using matlab