gistfile1.java

package ws.graps;

import android.app.Activity;
import android.media.AudioFormat;
import android.media.AudioManager;
import android.media.AudioTrack;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

import java.util.Random;

public class RecordActivity extends Activity
{
    Button playButton = null;
    AudioTrack track = null;
    int playCount = 0;
    TextView text = null;
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.recorder);
        track = new AudioTrack(AudioManager.STREAM_MUSIC, 44100, AudioFormat.CHANNEL_CONFIGURATION_DEFAULT, AudioFormat.ENCODING_DEFAULT, 44100, AudioTrack.MODE_STATIC);
        byte[] whiteNoise = new byte[44100];
        Random rand = new Random();
        rand.nextBytes(whiteNoise);

        track.write(whiteNoise, 0, whiteNoise.length);
        text = (TextView)findViewById(R.id.textview01);
        playButton = (Button)findViewById(R.id.playButton);
        playButton.setOnClickListener(new OnClickListener() {
            public void onClick(View view) {
                text.setText(""+playCount);
                if(playCount > 0) {
                    track.stop();
                    track.reloadStaticData();
                }
                track.play();
                playCount++;
            }
        });
    }
    @Override
    public void onPause()
    {
        super.onPause();
        track.stop();
        track.release();
    }
}