android 使用AudioRecord 录音，使用AudioTrack 播放，发现好多杂音，有没有大神能帮忙看看的！

[密秘的说能不]

android 使用AudioRecord 录音，使用AudioTrack 播放，发现好多杂音，有没有大神能帮忙看看的！
代码如下：
package cn.aiseminar.aisinterphone;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.media.AudioFormat;
import android.media.AudioManager;
import android.media.AudioRecord;
import android.media.AudioTrack;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ImageButton;
import android.widget.Toast;

public class VoiceActivity extends Activity {
private BluetoothPhoneService mPhoneService = null;
// for audio recording in local
private AudioRecord mRecorder = null;
private boolean mInRecording = false;
private int mRecordBufferSize = 0;
private static final int mSampleRate = 8000; //44100;
private static final int mRecordChannel = AudioFormat.CHANNEL_IN_MONO;
private static final int mTrackChannel = AudioFormat.CHANNEL_OUT_MONO;
private static final int mAudioFormat = AudioFormat.ENCODING_PCM_16BIT;
// for play audio data from remote
private AudioTrack mPlayer = null;

@SuppressLint("HandlerLeak")
private final Handler mMessageHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what)
{
case BluetoothPhoneService.MSG_DEVICE_CONNECT_FAILED:
String errorMsg = (String) msg.obj;
Toast.makeText(VoiceActivity.this, errorMsg, Toast.LENGTH_LONG).show();
VoiceActivity.this.finish();
break;
case BluetoothPhoneService.MSG_CONTENT_READED:
byte[] readBuf = (byte[]) msg.obj;
int readBytes = msg.arg1;
if (null != mPlayer)
{
mPlayer.write(readBuf, 0, readBytes);
}
break;
case BluetoothPhoneService.MSG_CONTENT_WRITED:
break;
case BluetoothPhoneService.MSG_DEVICE_DISCONNECTED:
Toast.makeText(VoiceActivity.this, R.string.msg_device_disconnected, Toast.LENGTH_LONG).show();
VoiceActivity.this.finish();
break;
}
super.handleMessage(msg);
}
};

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.setContentView(R.layout.voice_activity);

mPhoneService = BluetoothPhoneService.getBluetoothPhoneService();
mPhoneService.setMsgHandler(mMessageHandler);

int trackBufferSize = AudioTrack.getMinBufferSize(mSampleRate, mTrackChannel, mAudioFormat);
mPlayer = new AudioTrack(AudioManager.STREAM_MUSIC, mSampleRate, mTrackChannel, mAudioFormat, trackBufferSize, AudioTrack.MODE_STREAM);

mRecordBufferSize = AudioRecord.getMinBufferSize(mSampleRate, mRecordChannel, mAudioFormat);
mRecorder = new AudioRecord(MediaRecorder.AudioSource.MIC, mSampleRate, mRecordChannel, mAudioFormat, mRecordBufferSize);

ImageButton recordBtn = (ImageButton)this.findViewById(R.id.btnSpeaking);
recordBtn.setOnTouchListener(new View.OnTouchListener() {

@Override
public boolean onTouch(View v, MotionEvent event) {
int action = event.getActionMasked();
switch (action)
{
case MotionEvent.ACTION_DOWN:
onBtnRecord(true);
break;
case MotionEvent.ACTION_UP:
onBtnRecord(false);
break;
}
return false;
}
});
}

@Override
protected void onPause() {
super.onPause();

if (null != mPlayer)
{
mPlayer.pause();
}
}

@Override
protected void onStop() {
mPhoneService.stopTransferData();
mPlayer.stop();
mPlayer.release();
mRecorder.release();

super.onStop();
}

@Override
protected void onStart() {
super.onStart();
if (null != mPlayer)
{
mPlayer.play();
}
}

private void onBtnRecord(boolean start)
{
if (start)
{
mInRecording = true;
AudioRecordThread recordThread = new AudioRecordThread();
recordThread.start();
}
else
{
mInRecording = false;
}
}

class AudioRecordThread extends Thread
{
@Override
public void run() {
try
{
byte[] buffer = new byte[mRecordBufferSize];
mRecorder.startRecording();
while (mInRecording)
{
int readSize = mRecorder.read(buffer, 0, mRecordBufferSize);
byte[] sendBuffer = new byte[readSize];
System.arraycopy(buffer, 0, sendBuffer, 0, readSize);
mPhoneService.sendDataToRemote(sendBuffer, 0, readSize);
}
mRecorder.stop();
}
catch (Throwable t)
{
t.printStackTrace();
}
}
}
}

[密秘的说能不]

大神些帮忙看看，，，，

[muximuxi525]

lz解决了吗？