Hello sir, I have PJSIP working library in my android project. I can make the calls and record calls. Now i want to add a beep sound during call to notify the users that they are being recorded. I have also change audio file format and sample rate 8000 I have tried to play a wav file using following code, AudioMediaPlayer player;AudioMedia& play_dev_med = Endpoint::instance().audDevManager().getPlaybackDevMedia();try { player.createPlayer("file.wav"); player.startTransmit(play_dev_med);} catch(Error& err) {} Please help this above code is not playing wav file.