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Android "speak failed: not bound to tts engine"

Asked 2012-08-02T13:36:49.970
21

My android application has text to speak feature and more then one activity uses this feature. So created a static helper class to made this easy.

import java.util.Locale;

import android.content.Context;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import android.util.Log;

public class TextToSpeechController implements OnInitListener {

    private static final String TAG = "TextToSpeechController";
    private TextToSpeech myTTS;
    private String textToSpeak;
    private Context context;

    private static TextToSpeechController singleton;

    public static TextToSpeechController getInstance(Context ctx) {
        if (singleton == null)
            singleton = new TextToSpeechController(ctx);
        return singleton;
    }

    private TextToSpeechController(Context ctx) {
        context = ctx;
    }

    public void speak(String text) {
        textToSpeak = text;

        if (myTTS == null) {
            // currently can't change Locale until speech ends
            try {
                // Initialize text-to-speech. This is an asynchronous operation.
                // The OnInitListener (second argument) is called after
                // initialization completes.
                myTTS = new TextToSpeech(context, this);

            } catch (Exception e) {             
                e.printStackTrace();
            }
        }

        sayText();

    }

    public void onInit(int initStatus) {
        if (initStatus == TextToSpeech.SUCCESS) {
            if (myTTS.isLanguageAvailable(Locale.UK) == TextToSpeech.LANG_AVAILABLE)
                myTTS.setLanguage(Locale.UK);
        }

        // status can be either TextToSpeech.SUCCESS or TextToSpeech.ERROR.
        if (initStatus == TextToSpeech.SUCCESS) {
            int result = myTTS.setLanguage(Locale.UK);
            if (result == TextToSpeech.LANG_MISSING_DATA
                    || result == TextToSpeech.LANG_NOT_SUPPORTED) {
android text-to-speech
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1 Answer

5

Here is the code I use for text to speech. For my code simply type speakWords("say something"); in any activity. 

public class VoiceRecognition extends Activity implements OnClickListener,
        OnInitListener {

    public static final int VOICE_RECOGNITION_REQUEST_CODE = 1234;

    public Button speakButton;
    // TTS object
    public TextToSpeech myTTS;
    // status check code
    public int MY_DATA_CHECK_CODE = 0;

    // setup TTS
    public void onInit(int initStatus) {

        // check for successful instantiation
        if (initStatus == TextToSpeech.SUCCESS) {
            if (myTTS.isLanguageAvailable(Locale.US) == TextToSpeech.LANG_AVAILABLE)
                myTTS.setLanguage(Locale.US);
        } else if (initStatus == TextToSpeech.ERROR) {
            Toast.makeText(this, "Sorry! Text To Speech failed...",
                    Toast.LENGTH_LONG).show();
        }
    }

    /**
     * Called with the activity is first created.
     */
    @Override
    public void onCreate(Bundle voiceinput) {
        super.onCreate(voiceinput);

        // Inflate our UI from its XML layout description.
        setContentView(R.layout.voice_recognition);

        // check for TTS data
        Intent checkTTSIntent = new Intent();
        checkTTSIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
        startActivityForResult(checkTTSIntent, MY_DATA_CHECK_CODE);

    }

    // speak the user text
    public void speakWords(String speech) {

        // speak straight away
        myTTS.speak(speech, TextToSpeech.QUEUE_FLUSH, null);
    }


    public void onClick(View v) {
        speakWords("hello";
    }


    /**
     * Handle the results from the recognition activity.
     */
    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {

        if (requestCode == MY_DATA_CHECK_CODE) {
            if (resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS) {
                // the user has the neces
answered 2012-08-02T17:06:02.333

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