Ggtcf

i'm working on an app that uses Nuance tts sdk.

In the main activity my app will play an audio file through calling the synthesize method in another class. When the user leave the main activity i want to stop the session (sound) but i can't figure out how to do this

From my main activity i call the method in the class

 illustrate.startSynthesize();

my class that implement the SDK :

 package com.example.illuminate_me;

 import android.content.Context;

import com.nuance.speechkit.Audio;
import com.nuance.speechkit.AudioPlayer;
import com.nuance.speechkit.Language;
import com.nuance.speechkit.Session;
import com.nuance.speechkit.Transaction;
import com.nuance.speechkit.TransactionException;
import com.nuance.speechkit.Voice;

public class Illustrate implements AudioPlayer.Listener
 private Session speechSession;
 private Transaction ttsTransaction;
 private Illustrate.State state = Illustrate.State.IDLE;
 private String voice ="Tarik";
 private Context context;
 private String text;


 public Illustrate(String tts, Context context) 
 this.context=context;
 this.text=tts;

 //Create a session
 speechSession = Session.Factory.session(context, Configuration.SERVER_URI, Configuration.APP_KEY);
 speechSession.getAudioPlayer().setListener(this);

 setState(Illustrate.State.IDLE);
 // startSynthesize();
 

 public void startSynthesize() 
 toggleTTS();
 


 private void toggleTTS() 
 switch (state) 
 case IDLE:
 if(ttsTransaction == null) 
 synthesize();
 
 //Otherwise lets attempt to cancel that transaction
 else 
 cancel();
 
 break;
 case PLAYING:
 speechSession.getAudioPlayer().pause();
 setState(Illustrate.State.PAUSED);
 break;
 case PAUSED:
 speechSession.getAudioPlayer().play();
 setState(Illustrate.State.PLAYING);
 break;
 
 

 public void synthesize() 
 //Setup our TTS transaction options.
 Transaction.Options options = new Transaction.Options();
 options.setLanguage(new Language(Configuration.LANGUAGE));

 options.setVoice(new Voice(voice)); 
 ttsTransaction = speechSession.speakString(text, options, new Transaction.Listener() 
 @Override
 public void onAudio(Transaction transaction, Audio audio) 

 ttsTransaction = null;
 

 @Override
 public void onSuccess(Transaction transaction, String s) 

 

 @Override
 public void onError(Transaction transaction, String s, TransactionException e) 

 ttsTransaction = null;
 
 );
 


 /**
 * Cancel the TTS transaction.
 * This will only cancel if we have not received the audio from the server yet.
 */
 private void cancel() 
 ttsTransaction.cancel();
 

 @Override
 public void onBeginPlaying(AudioPlayer audioPlayer, Audio audio) 

 setState(Illustrate.State.PLAYING);
 

 @Override
 public void onFinishedPlaying(AudioPlayer audioPlayer, Audio audio) 
 setState(Illustrate.State.IDLE);
 




 private enum State 
 IDLE,
 PLAYING,
 PAUSED
 

 /**
 * Set the state and update the button text.
 */
 private void setState(Illustrate.State newState) 
 state = newState;
 switch (newState) 
 case IDLE:
 // Next possible action is speaking
 break;
 case PLAYING:
 // Next possible action is pausing
 break;
 case PAUSED:
 // Next possible action is resuming the speech
 // toggleTTS.setText(getResources().getString(R.string.speak_string));
 break;
 
 

Any help is very much appreciated.
This is the documentation if any one want to take a look at it
Speech synthesis (TTS)