Android 手機聽筒Earpiece和揚聲器speaker切換
阿新 • • 發佈:2019-02-13
AudioManager audioManager = (AudioManager)getSystemService(Context.AUDIO_SERVICE); private void setSpeakerphoneOn(boolean on) { if(on) { audioManager.setSpeakerphoneOn(true); } else { audioManager.setSpeakerphoneOn(false);//關閉揚聲器 audioManager.setRouting(AudioManager.MODE_NORMAL, AudioManager.ROUTE_EARPIECE, AudioManager.ROUTE_ALL); setVolumeControlStream(AudioManager.STREAM_VOICE_CALL); //把聲音設定成Earpiece(聽筒)出來,設定為正在通話中 audioManager.setMode(AudioManager.MODE_IN_CALL); } }
static final int bufferSize = 200000; final short[] buffer = new short[bufferSize]; short[] readBuffer = new short[bufferSize]; public void run() { isRecording = true; android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_URGENT_AUDIO); int buffersize = AudioRecord.getMinBufferSize(11025, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT); arec = new AudioRecord(MediaRecorder.AudioSource.MIC, 11025, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT, buffersize); atrack = new AudioTrack(AudioManager.STREAM_VOICE_CALL, 11025, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT, buffersize, AudioTrack.MODE_STREAM); atrack.setPlaybackRate(11025); byte[] buffer = new byte[buffersize]; arec.startRecording(); atrack.play(); while(isRecording) { arec.read(buffer, 0, buffersize); atrack.write(buffer, 0, buffer.length); } }
3. PS
http://mindtherobot.com/blog/624/android-audio-play-an-mp3-file-on-an-audiotrack/