Question

My Android application uses MediaRecorder on a SurfaceHolder to show a live preview of what the camera is capturing. Every time the user presses the REC button on the app, the app starts to record.
Every time the state of the MediaRecorder switches to/from ‘start’, Android automatically (?) fires off a beep. This beep sounds different from phone to phone, which makes me think that this beep is natively attached to the state change of MediaRecorder.
The beep is not played if the volume of the phone is set to silent.

I google it and did some research but I couldn’t find a way to turn this beep off. Is it possible? If so, how?

The app was tested on: Nexus One 2.3.4, Desire HD 2.3.3

Answer 1

try

((AudioManager)context.getSystemService(Context.AUDIO_SERVICE)).setStreamMute(AudioManager.STREAM_SYSTEM,true);

That mute all sounds.