我正在使用语音识别应用程序。在成功连接到我的Android设备的蓝牙耳机之后,我想在内置的麦克风和耳机麦克风之间自由切换音频输入,该怎么做?
您可以使用以下代码切换蓝牙耳机麦克风。
AudioManager audiomanager= (AudioManager)mContext.getSystemService(Context
.AUDIO_SERVICE);
IntentFilter intentFilter = new IntentFilter(AudioManager.ACTION_SCO_AUDIO_STATE_UPDATED);
mContext.registerReceiver(mBluetoothScoReceiver, intentFilter);
audiomanager.startBluetoothSco();
听广播接收器。
private BroadcastReceiver mBluetoothScoReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
int state = intent.getIntExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, -1);
if (state == AudioManager.SCO_AUDIO_STATE_CONNECTED) {
// Start recording audio
log("audio connected");
startRecording();
} else if(state == AudioManager.SCO_AUDIO_STATE_DISCONNECTED){
log("audio disconnected");
}
}
};
和切换(要断开蓝牙耳机麦克风)可以使用此代码。
mAudioManager.stopBluetoothSco();