mediarecorder - Android Recorder records system noise -


i have app, uploads recorded voice server (by means of socket). starts automatically record , send data socket.

now problem @ beginning on audio file, there bubble system notification sound (like this: https://www.youtube.com/watch?v=dk5snsyn4de)

why? it's appears if press on buttons or app shortcuts. said, recorder starts automatically if app opened , sends data (i.e. don't have interact buttons).

i start way:

      recorder = new audiorecord(mediarecorder.audiosource.mic,samplerate,channelconfig,audioformat,minbufsize);       recorder.startrecording();


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