从android中的调用接收DTMF音

Question

I am developing an android application where I want to make use of DTMF tones over a active call. I want to send and receive DTMF tones when I make a call through my android application. DTMF tone will be send over a call through a button click. Then on a same call session I want to receive DTMF tone sent by another user (not necessary android mobile, it can be regular device also). On receiving DTMF tones I want to decode them and execute required functions in application.

Can anybody know how to do this send DTMF tone over a active call and receive the tone from same call to decode it.

Answer 1

从任何设备录制音调并另存为mp3播放它但是对于解码你应该使用声音比较算法要求用户按1.然后从1开始计算其他声音。