我目前正在尝试为 Android 构建一个放大器。目标是同时录制和回放正在录制的内容。我创建了一个线程来处理这个问题。然而，声音发出断断续续的声音。这是我尝试过的。
private class RecordAndPlay extends Thread{
int bufferSize;
AudioRecord aRecord;
short[] buffer;
public RecordAndPlay() {
bufferSize = AudioRecord.getMinBufferSize(22050, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
buffer = new short[bufferSize];
}
@Override
public void run() {
aRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, 22050, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, bufferSize);
try {
aRecord.startRecording();
} catch (Exception e) {
}
int bufferedResult = aRecord.read(buffer,0,bufferSize);
final AudioTrack aTrack = new AudioTrack(AudioManager.STREAM_MUSIC, samplingRate, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT, bufferedResult, AudioTrack.MODE_STREAM);
aTrack.setNotificationMarkerPosition(bufferedResult);
aTrack.setPlaybackPositionUpdateListener(new OnPlaybackPositionUpdateListener() {
@Override
public void onPeriodicNotification(AudioTrack track) {
// TODO Auto-generated method stub
}
@Override
public void onMarkerReached(AudioTrack track) {
Log.d("Marker reached", "...");
aTrack.release();
aRecord.release();
run();
}
});
aTrack.play();
aTrack.write(buffer, 0, buffer.length);
}
public void cancel(){
aRecord.stop();
aRecord.release();
}
}