Android语音用speex编解码边录边放，求大神解决参数问题

我想要实现语音边录边放功能，其中用到speex编解码，但是播放的是噪音，我觉得是speex编解码时的音频数据参数出问题，参考网上跟官方的代码都不统一，求大神搭救

package com.embedsky.audiorecord;



import com.trunkbow.speextest.Speex;



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.util.Log;

import android.view.View;

import android.widget.Button;

import android.widget.SeekBar;



public class MainActivity extends Activity {



	 /** Called when the activity is first created. */  

    Button btnRecord, btnStop, btnExit;  

    SeekBar skbVolume;//调节音量  

    boolean isRecording = false;//是否录放的标记  

    static final int frequency = 44100;  

    static final int channelConfiguration = AudioFormat.CHANNEL_CONFIGURATION_MONO;  

    static final int audioEncoding = AudioFormat.ENCODING_PCM_16BIT;  

    int recBufSize,playBufSize;  

    AudioRecord audioRecord;  

    AudioTrack audioTrack; 

    private Speex speex;

    private int frameSize;

  

    @Override  

    public void onCreate(Bundle savedInstanceState) {  

        super.onCreate(savedInstanceState);  

        setContentView(R.layout.activity_main);  

        setTitle("AudioRecord");  

        recBufSize = AudioRecord.getMinBufferSize(frequency,  

                channelConfiguration, audioEncoding);  

  

        playBufSize=AudioTrack.getMinBufferSize(frequency,  

                channelConfiguration, audioEncoding);  

        // ---------------语音录制和播放--------------------------  

        audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, frequency,  

                channelConfiguration, audioEncoding, recBufSize*10);  

  

        audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, frequency,  

                channelConfiguration, audioEncoding,  

                playBufSize*10, AudioTrack.MODE_STREAM);  

        //---------------控件---------------------------  

        btnRecord = (Button) this.findViewById(R.id.btnRecord);  

        btnRecord.setOnClickListener(new ClickEvent());  

        btnStop = (Button) this.findViewById(R.id.btnStop);  

        btnStop.setOnClickListener(new ClickEvent());  

        btnExit = (Button) this.findViewById(R.id.btnExit);  

        btnExit.setOnClickListener(new ClickEvent());  

        skbVolume=(SeekBar)this.findViewById(R.id.skbVolume);  

        skbVolume.setMax(100);//音量调节的极限  

        skbVolume.setProgress(70);//设置seekbar的位置值  

        audioTrack.setStereoVolume(0.8f, 0.8f);//设置当前音量大小  

        skbVolume.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {  

        	

            @Override  

            public void onStopTrackingTouch(SeekBar seekBar) {  

                float vol=(float)(seekBar.getProgress())/(float)(seekBar.getMax());  

                audioTrack.setStereoVolume(vol, vol);//设置音量  

            }  

              

            @Override  

            public void onStartTrackingTouch(SeekBar seekBar) {  

                // TODO Auto-generated method stub  

            }  

              

            @Override  

            public void onProgressChanged(SeekBar seekBar, int progress,  

                    boolean fromUser) {  

                // TODO Auto-generated method stub  

            }  

        }); 

       

        //speex编解码

        speex = new Speex();

        speex.init();

        frameSize = speex.getFrameSize();

        

    }  

  

    @Override  

    protected void onDestroy() {  

        super.onDestroy();  

        android.os.Process.killProcess(android.os.Process.myPid());  

    }  

  

    class ClickEvent implements View.OnClickListener {  

  

        @Override  

        public void onClick(View v) {  

            if (v == btnRecord) {  

                isRecording = true;  

                new RecordPlayThread().start();// 开一条线程边录边放  

            } else if (v == btnStop) {  

                isRecording = false;  

            } else if (v == btnExit) {  

                isRecording = false;  

                MainActivity.this.finish();  

            }  

        }  

    }  

  

  

    class RecordPlayThread extends Thread {  

        public void run() {  

            try {

                audioRecord.startRecording();//开始录制  

                audioTrack.play();//开始播放  

                while (isRecording) {  

                	int totleByte = 0;

                	short[] bufferRead = new short[160];  

                	byte[] processedData = new byte[1024];

                	short[] rawdata = new short[1024];

                	 

                	/**

                     * 声音采集

                     * pcm数据通过speex编码

                     */

                    int bufferReadResult = audioRecord.read(bufferRead, 0,160); 

                    synchronized (audioRecord) {

                    	System.arraycopy(bufferRead, 0, rawdata, 0, bufferReadResult);

            			totleByte = speex.encode(rawdata, 0, processedData, bufferReadResult);// 编码后的总字节长度

            			

            			if (totleByte != 0) {

            				Log.i("SPEEX", "编码成功 字节数组长度 = " + totleByte

            						+ " ， short[] 长度 = " + bufferReadResult);

            			} else {

            				System.out.println("speex编码失败！");

            			}

            		}

                 

            		

                    /**

                     * 解码

                     */

                    

                    short[] rcvProcessedData = new short[160];

            		byte[]  rawData= new byte[256];



                    System.arraycopy(processedData, 0, rawData, 0, bufferReadResult);

            		int desize;

            		synchronized (audioTrack) {

            			desize = speex.decode(processedData, rcvProcessedData, 160);

            		}

            		if (desize > 0) {

            			audioTrack.write(rcvProcessedData, 0, desize);

            			System.out.println("speex解码成功！");

            		}

                    

                }  

                audioTrack.stop();  

                audioRecord.stop();  

            } catch (Throwable t) {  

            	System.out.println(t.getMessage());

            }  

        }  

    };  

 

}