Riproduzione di un file wav con Android mediante AudioTrack

Ho riprodotto un file WAV con AudioTrack, ottenendo anche qualche informazione in più sul sample rate.

public class MainActivity extends Activity{
 
 AudioTrack audioTrack;
 Button bottone;
 int minBufferSize=AudioTrack.getMinBufferSize(10000, AudioFormat.CHANNEL_IN_STEREO, AudioFormat.ENCODING_PCM_8BIT);
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  
  bottone=(Button)findViewById(R.id.button1);
  audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, 10000, AudioFormat.CHANNEL_IN_STEREO, 
                AudioFormat.ENCODING_PCM_8BIT, minBufferSize, AudioTrack.MODE_STREAM); 
 
  bottone.setOnClickListener(new View.OnClickListener() {
   
   @Override
   public void onClick(View v) {
    playSound();
    
   }
  }); 
 }
 
 public void playSound(){
  
  audioTrack.play(); 
  int i=0;
  int bufferSize=512;
  final byte[] buffer=new byte[bufferSize];
  
  final InputStream inputStream=getResources().openRawResource(R.raw.vaffanculo);
  
  
       try {
        
           while((i = inputStream.read(buffer)) > -1)
               audioTrack.write(buffer, 0, i);
       } catch (IOException e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       }
       try {
           inputStream.close();
       } catch (IOException e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       }
    
   
   
  }
  

 
  
 
}