Hello, I am developing an application on an HTC Desire under Android v2.2. I would like to play some audio through the ear piece of the phone and not the speaker. I cannot seem to find a way to do this. I am using the AudioTrack class to play a raw audio file as follows: // Create AudioTrack object using the same parameters as the AudioRecord // object used to create the file. AudioTrack audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, 8000, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT, musicLength, AudioTrack.MODE_STREAM); // Start playback audioTrack.play(); // Write the music buffer to the AudioTrack object audioTrack.write(music, 0, musicLength); The audio plays fine out of the speaker phone, but I cannot find a way to play the audio through the phone's ear piece. Does anyone know how to do this?