I have been refering to Android Speech Recognition as a service on Android 4.1 & 4.2 post to try and implement speech recognition in a service.
I guess I have got it right. On running in my device I am getting "Ready for Speech" toast message which I have declared inside onReadyForSpeech() function.
According to Hoan Nguyen the person who gave the ans for the above post, we can start speaking as soon as onReadyForSpeech() function is called.
My problem is I don't know how to get the speech which we are speaking and convert it to text and where to do it.
Does any one know how to do it? I know its a very lame question to ask but its my first time working with speech recognition. So please bear with me.
Any help on this is very much appreciated. Thanks in advance :)
public class MyService extends Service
{
protected AudioManager mAudioManager;
protected SpeechRecognizer mSpeechRecognizer;
protected Intent mSpeechRecognizerIntent;
protected final Messenger mServerMessenger = new Messenger(new IncomingHandler(this));
protected boolean mIsListening;
protected volatile boolean mIsCountDownOn;
static final int MSG_RECOGNIZER_START_LISTENING = 1;
static final int MSG_RECOGNIZER_CANCEL = 2;
@Override
public void onCreate()
{
super.onCreate();
mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
mSpeechRecognizer.setRecognitionListener(new SpeechRecognitionListener());
mSpeechRecognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE,
this.getPackageName());
mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
//Toast.makeText(this, "onCreate", Toast.LENGTH_SHORT).show();
Log.d("onCreate","Entered");
}
protected static class IncomingHandler extends Handler
{
private WeakReference<MyService> mtarget;
IncomingHandler(MyService target)
{
mtarget = new WeakReference<MyService>(target);
Log.d("IncomingHandler","Entered");
}
@Override
public void handleMessage(Message msg)
{
Log.d("handleMessage","Entered");
final MyService target = mtarget.get();
switch (msg.what)
{
case MSG_RECOGNIZER_START_LISTENING:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN)
{
// turn off beep sound
target.mAudioManager.setStreamMute(AudioManager.STREAM_SYSTEM, true);
}
if (!target.mIsListening)
{
target.mSpeechRecognizer.startListening(target.mSpeechRecognizerIntent);
target.mIsListening = true;
Log.d("TAG", "message start listening");
//$NON-NLS-1$
}
break;
case MSG_RECOGNIZER_CANCEL:
target.mSpeechRecognizer.cancel();
target.mIsListening = false;
Log.d("TAG", "message canceled recognizer"); //$NON-NLS-1$
break;
}
}
}
// Count down timer for Jelly Bean work around
protected CountDownTimer mNoSpeechCountDown = new CountDownTimer(5000, 5000)
{
@Override
public void onTick(long millisUntilFinished)
{
// TODO Auto-generated method stub
Log.d("onTick","Entered");
}
@Override
public void onFinish()
{
Log.d("onFinish","Entered");
mIsCountDownOn = false;
Message message = Message.obtain(null, MSG_RECOGNIZER_CANCEL);
try
{
mServerMessenger.send(message);
message = Message.obtain(null, MSG_RECOGNIZER_START_LISTENING);
mServerMessenger.send(message);
}
catch (RemoteException e)
{
}
}
};
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
//mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
try
{
Message msg = new Message();
msg.what = MSG_RECOGNIZER_START_LISTENING;
mServerMessenger.send(msg);
}
catch (RemoteException e)
{
Log.d("msg",""+e);
}
return START_NOT_STICKY;
//return super.onStartCommand(intent, flags, startId);
}
@Override
public void onDestroy()
{
super.onDestroy();
if (mIsCountDownOn)
{
mNoSpeechCountDown.cancel();
}
if (mSpeechRecognizer != null)
{
mSpeechRecognizer.destroy();
}
Log.d("onDestroy","Entered");
}
protected class SpeechRecognitionListener implements RecognitionListener
{
private static final String TAG = "Sppech---->";
@Override
public void onBeginningOfSpeech()
{
// speech input will be processed, so there is no need for count down anymore
if (mIsCountDownOn)
{
mIsCountDownOn = false;
mNoSpeechCountDown.cancel();
}
//Log.d(TAG, "onBeginingOfSpeech"); //$NON-NLS-1$
Log.d("onBeginningOfSpeech","Entered");
}
@Override
public void onBufferReceived(byte[] buffer)
{
String sTest = "";
Log.d("onBufferReceived","Entered");
}
@Override
public void onEndOfSpeech()
{
//Log.d(TAG, "onEndOfSpeech"); //$NON-NLS-1$
Log.d("onEndOfSpeech","Entered");
}
@Override
public void onError(int error)
{
if (mIsCountDownOn)
{
mIsCountDownOn = false;
mNoSpeechCountDown.cancel();
}
mIsListening = false;
Message message = Message.obtain(null, MSG_RECOGNIZER_START_LISTENING);
try
{
mServerMessenger.send(message);
}
catch (RemoteException e)
{
}
//Log.d(TAG, "error = " + error); //$NON-NLS-1$
Log.d("onError","Entered");
}
@Override
public void onEvent(int eventType, Bundle params)
{
}
@Override
public void onPartialResults(Bundle partialResults)
{
}
@Override
public void onReadyForSpeech(Bundle params)
{
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN)
{
mIsCountDownOn = true;
mNoSpeechCountDown.start();
mAudioManager.setStreamMute(AudioManager.STREAM_SYSTEM, false);
}
//Log.d("TAG", "onReadyForSpeech");
Toast.makeText(getApplicationContext(), "Ready for Speech", Toast.LENGTH_SHORT).show();
Log.d("onReadyForSpeech","Entered");//$NON-NLS-1$
}
@Override
public void onResults(Bundle results)
{
//Log.d(TAG, "onResults"); //$NON-NLS-1$
}
@Override
public void onRmsChanged(float rmsdB)
{
}
}
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
}
You get it in onResult(Bundle result), which you can then get what the user speak into an ArrayList
ArrayList<String> matches = result.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);