Unable to mute the microphone in Android

Question

Hi,

I'm working on an app that uses AudioRecord class to get input data from the phone mic. For some reason I'm unable to mute the mic. I have tried with different AudioSources (DEFAULT, MIC and VOICE_UPLINK) when creating the AudioRecord object, but there's no difference in the muting behaviour.

The muting itself, I'm trying to achieve with AudioManager#setMicrophoneMute() method.

Any ideas?

Thanks.

Answer 1

have you checked the android manifest permissions. Have you enabled that ??

Answer 2

Sorry for the late update. No longer an issue. Our app uses a third party lib that was doing some audio stuff that caused trouble.

I marked my own answer as correct just to inform that this is no longer an open issue.

Answer 3

Hello, I am trying to mute the microphone frequently, can you share your knowledge? MY App freezes if I mute unmute in a loop.

for (int i=0;i<30;i++) { audioService.setMicrophoneMute(false); Toast.makeText(getBaseContext(), "Un MUTED", 1).show(); try { Thread.sleep(1000,90); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } audioService.setMicrophoneMute(true); Toast.makeText(getBaseContext(), "MUTED", 1).show(); }

Answer 4

for (int i=0;i<30;i++) { 
   audioService.setMicrophoneMute(false); 
   Toast.makeText(getBaseContext(), "Un MUTED", 1).show(); 
   try { 
      Thread.sleep(1000,90); 
   } 
   catch (InterruptedException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
   } 
   audioService.setMicrophoneMute(true); 
   Toast.makeText(getBaseContext(), "MUTED", 1).show(); 
}

OK. Now a bit more readable.

Seems like you are running this code in the UI thread. You'll probably get an Application Not Responding error, since your code block is executed for more than ~5 seconds. Seeing some logs would be helpful here.

You need to execute the code in a seperate thread, take a look at Handler.