Voice detection (not recognition)

peacemaker

Expert
Licensed User
Longtime User
Hi, All

How to detect a voice reply in a .WAV file, recorded by AudioRecorder from VOICE_DOWNLINK audiosource ?

The record has a 450 Hz calling tone before voice of replier.

I had an experience with the audio visualization from UltimateAudio lib: getWaveForm or GetFFT of the sound, that is got from "0" audio session - general system mixer. But it's not a phone voice channel.

Any solytion way to detect the voice answer after calling tone ?
 
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