How to play sound on HTC or Galaxy?

public class AsyncCdnAccess extends AsyncTask<Configuration,boolean[],boolean[]>{
        
        private MediaPlayer player;

        @Override
        protected boolean[] doInBackground(Configuration... args){
                boolean[] result=new boolean[args.length];
                for(int i=0;i<args.length;i++){
                       //...some other code
                       result[i]=feedback&& playRemote(args[].word);
                }
        }

	public void setupPlayer() {

		 this.player = new MediaPlayer();
		this.player.setVolume(1.0F, 1.0F);

		this.player.setOnCompletionListener(new OnCompletionListener() {
 			@Override
			public void onCompletion(MediaPlayer arg0) {
				//removed (project specific codes)

				stop();
			  }
		 });
	}

	 public boolean playRemote(String word) {

		stop();

		synchronized (this) {

			setupPlayer();

			// player.setAudioStreamType(AudioManager.STREAM_MUSIC);

			String path = getRequestRemote(this.currentCdn, word);

			//removed (project specific codes)

			this.player.setDataSource(path);
			this.player.prepare();
			this.player.start();

                        isPlaying = true;

			return true;
		}
	}

	public void stop() {

		if (!isPlaying)
			return;

		synchronized (this) {
			this.player.stop();
			//this.player.reset();
			this.player.release();

			isPlaying = false;
	}
     }
}