private synchronized void doRecognize(
final Recognizer.Listener callback,
int endOfSpeechRecognitionMode,
boolean isNoStartPrompt,
boolean isNoStopPrompt) {
// "singleton" recognition: only one recognition process at a time is allowed
// --> ensure all previous processes are stopped.
if (_currentRecognitionHandler != null && _currentRecognizer != null) {
_currentRecognizer.cancel();
}
_currentRecognitionHandler = callback;
_currentRecognizer =
_speechKit.createRecognizer(
Recognizer.RecognizerType.Dictation,
endOfSpeechRecognitionMode,
_currentLanguage,
_recognitionListener,
_handler);
if (isNoStartPrompt) {
_currentRecognizer.setPrompt(Recognizer.PromptType.RECORDING_START, null);
}
if (isNoStopPrompt) {
_currentRecognizer.setPrompt(Recognizer.PromptType.RECORDING_STOP, null);
}
_currentRecognizer.start();
}
public void releaseResources() {
if (_speechKit != null) {
if (_currentRecognitionHandler != null) {
// if there is currently a callback-handler set: "simulate" a cancel event, notifying the
// callback that it
// the speech engine is about to release its resources
_currentRecognitionHandler.onError(
_currentRecognizer,
new SpeechError() {
@Override
public String getSuggestion() {
return "Re-initialize the engine and its resources";
}
@Override
public String getErrorDetail() {
return "Resources are getting released";
}
@Override
public int getErrorCode() {
// simulate canceled
return 5;
}
});
}
_speechKit.release();
_currentRecognizer = null;
_currentRecognitionHandler = null;
_recognitionListener = null;
_vocalizer = null;
_speechKit = null;
_handler = null;
}
if (this._defaultStartPrompt != null) {
this._defaultStartPrompt.release();
this._defaultStartPrompt = null;
}
if (this._defaultStopPrompt != null) {
this._defaultStopPrompt.release();
this._defaultStopPrompt = null;
}
}
private Prompt createDefaultStartPrompt() {
if (this._speechKit != null) {
int beepResId =
_context
.getResources()
.getIdentifier("rawbeep", "raw", _context.getApplicationInfo().packageName);
return _speechKit.defineAudioPrompt(beepResId);
} else {
Log.e(
PLUGIN_NAME,
"Cannot create Start Prompt: SpeechKit not initialized, returning default prompt [NONE]...");
}
return null;
}
public void initializeResources() {
if (_speechKit != null) {
return;
}
_speechKit =
SpeechKit.initialize(
_context,
Credentials.getSpeechKitAppId(),
Credentials.getSpeechKitServer(),
Credentials.getSpeechKitPort(), // the port number, e.g. 443,
Credentials.getSpeechKitSsl(), // true if SSL should be used,
Credentials
.getSpeechKitCertSummary(), // the summary String (must match the Common Name (CN)
// of the used certificate-data; as provided by Nuance)
Credentials.getSpeechKitCertData(), // the certificate data,
Credentials.getSpeechKitAppKey());
_speechKit.connect();
int beepResId =
_context
.getResources()
.getIdentifier("rawbeep", "raw", _context.getApplicationInfo().packageName);
// TODO: Keep an eye out for audio prompts not-working on the Android 2 or other 2.2 devices.
this._defaultStartPrompt = _speechKit.defineAudioPrompt(beepResId);
this._defaultStopPrompt = Prompt.vibration(100);
_speechKit.setDefaultRecognizerPrompts(
this._defaultStartPrompt, this._defaultStopPrompt, null, null);
// Create Vocalizer listener
Vocalizer.Listener vocalizerListener =
new Vocalizer.Listener() {
@Override
public void onSpeakingBegin(Vocalizer vocalizer, String text, Object context) {
Log.d(PLUGIN_TTS_NAME, String.format("start speaking: '%s'", text));
if (context instanceof Vocalizer.Listener) {
((Vocalizer.Listener) context).onSpeakingBegin(vocalizer, text, null);
}
}
@Override
public void onSpeakingDone(
Vocalizer vocalizer, String text, SpeechError error, Object context) {
// Use the context to determine if this was the final TTS phrase
Log.d(PLUGIN_TTS_NAME, String.format("speaking done: '%s'", text));
if (context instanceof Vocalizer.Listener) {
((Vocalizer.Listener) context).onSpeakingDone(vocalizer, text, error, null);
}
}
};
// Create a single Vocalizer here.
_vocalizer =
_speechKit.createVocalizerWithLanguage(_currentLanguage, vocalizerListener, new Handler());
_recognitionListener = createRecognitionListener();
_handler = new Handler();
}