Reproducir sonidos android

import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
 
public class PlaySoundActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
 
        MediaPlayer sound = MediaPlayer.create(this, R.raw.soundFile);
 
        if(false == sound.isPlaying())
            sound.start();
 
        if(true == sound.isPlaying())
            sound.stop();
    }
}