Estoy intentando que el TTS de Android se ejecute dentro de un servicio, pero no tengo idea de por qué no funciona, se compila, no se bloquea, pero simplemente no funciona.

La notificación Toast sí funciona.

package alarm.test;

import android.app.Service;
import com.google.tts.TextToSpeechBeta;
import android.content.Intent;
import android.os.IBinder;
import android.widget.Toast;

public class MyAlarmService extends Service {

    private TextToSpeechBeta myTts;
    private TextToSpeechBeta.OnInitListener ttsInitListener = new TextToSpeechBeta.OnInitListener() {
        public void onInit( int arg0, int arg1 ) {
            myTts.speak("", 0, null);
        }
    };

@Override
public void onCreate() {
 // TODO Auto-generated method stub
    myTts = new TextToSpeechBeta( this,
            ttsInitListener );

 Toast.makeText(this, "MyAlarmService.onCreate()", Toast.LENGTH_LONG).show();
}

@Override
public IBinder onBind(Intent intent) {
 // TODO Auto-generated method stub
    myTts.speak("something is working", TextToSpeechBeta.QUEUE_FLUSH, null);
 Toast.makeText(this, "MyAlarmService.onBind()", Toast.LENGTH_LONG).show();
 return null;
}

@Override
public void onDestroy() {
 // TODO Auto-generated method stub
 super.onDestroy();
 Toast.makeText(this, "MyAlarmService.onDestroy()", Toast.LENGTH_LONG).show();
}

@Override
public void onStart(Intent intent, int startId) {
 // TODO Auto-generated method stub
 super.onStart(intent, startId);
 Toast.makeText(this, "MyAlarmService.onStart()", Toast.LENGTH_LONG).show();
}

@Override
public boolean onUnbind(Intent intent) {
 // TODO Auto-generated method stub
 Toast.makeText(this, "MyAlarmService.onUnbind()", Toast.LENGTH_LONG).show();
 return super.onUnbind(intent);
}

}