public class HotKeyWordDetectionService extends Service
    implements RecognitionListener {
private static final String KWS_SEARCH = "wakeup";
/* Keyword we are looking for to activate menu */
private static final String KEYPHRASE = "hello buddy";
private SpeechRecognizer recognizer;
private ExecutorService service;
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    startForeground(1, createNotification());
    service = Executors.newFixedThreadPool(3);
    // Recognizer initialization is a time-consuming and it involves IO,
    // so we execute it in a separate thread.
    init();
    return START_NOT_STICKY;
public void init() {
    service.submit(() -> {
        try {
            Assets assets = new Assets(HotKeyWordDetectionService5.this);
            File assetDir = assets.syncAssets();
            setupRecognizer(assetDir);
            Log.i("sphinx_test", "setup success: ");
            handler.sendEmptyMessage(0);
        } catch (IOException e) {
            Log.i("sphinx_test", "setup failed: "+"Failed to init recognizer " + e.getMessage());
            e.printStackTrace();
private Handler handler = new Handler(message -> {
    switchSearch(KWS_SEARCH);
    return false;
@Override
public void onResult(Hypothesis hypothesis) {
    if (hypothesis != null) {
        String text = hypothesis.getHypstr();
        if (text.equals(KEYPHRASE)) 
            launchMyApp(); 
private void switchSearch(String searchName) {
    recognizer.stop();
    recognizer.startListening(KWS_SEARCH);
private void setupRecognizer(File assetsDir) throws IOException {
    // The recognizer can be configured to perform multiple searches
    // of different kind and switch between them
    recognizer = SpeechRecognizerSetup.defaultSetup()
            .setAcousticModel(new File(assetsDir, "en-us-ptm"))
            .setDictionary(new File(assetsDir, "cmudict-en-us.dict"))
            .setRawLogDir(assetsDir) 
            .getRecognizer();
    recognizer.addListener(this);
    // Create keyword-activation search.
    recognizer.addKeyphraseSearch(KWS_SEARCH, KEYPHRASE);
    // Create grammar-based search for selection between demos
    File menuGrammar = new File(assetsDir, "menu.gram");
    recognizer.addGrammarSearch(MENU_SEARCH, menuGrammar);
    // Create grammar-based search for digit recognition
    File digitsGrammar = new File(assetsDir, "digits.gram");
    recognizer.addGrammarSearch(DIGITS_SEARCH, digitsGrammar);
    // Create language model search
    File languageModel = new File(assetsDir, "weather.dmp");
    recognizer.addNgramSearch(FORECAST_SEARCH, languageModel);
    // Phonetic search
    File phoneticModel = new File(assetsDir, "en-phone.dmp");
    recognizer.addAllphoneSearch(PHONE_SEARCH, phoneticModel);
}

>com.parts.assitant E/IAudioFlinger: createRecord returned error -1