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Распознавание голоса прекращает прослушивание через несколько секунд

Я много пробовал, но не могу найти его, поэтому надеюсь, что вы сможете мне помочь.

Я пытаюсь создать собственное приложение распознавания голоса, которое не отображает диалог.

Я уже написал код, и он работает очень хорошо, но моя проблема в том, что распознаватель, кажется, останавливается без каких-либо ошибок или других помех в LogCat.

Странным фактом является то, что "onRmsChanged" из интерфейса "RecognitionListener" все еще называется все время, но "onBeginningOfSpeech" больше не вызывается.

Если я говорю сразу после начала распознавания речи, это работает. Но это не так, если я подожду несколько секунд.

Используемый API 4.0.3, и я установил его на свой Nexus 7 с версией 4.2.1

Я бы очень признателен, если у вас есть хорошие идеи.

Некоторые фрагменты кода:

Мой класс:

class SpeechListener implements RecognitionListener
{

    public void onBeginningOfSpeech() 
    {
        Log.d(TAG, "onBeginningOfSpeech()");            
    }

    public void onBufferReceived(byte[] buffer) 
    {
        Log.d(TAG, "onBufferReceived()");
    }

    public void onEndOfSpeech() 
    {
        Log.d(TAG, "onEndOfSpeech()");

    }

    public void onError(int error) 
    {
        Log.d(TAG, "onError(): " + error);

        if(error == SpeechRecognizer.ERROR_NO_MATCH)
        {

        }
        else if(error == SpeechRecognizer.ERROR_SPEECH_TIMEOUT)
        {

        }
        else
        {
            tvOutput.setText("Error: " + error);    
        }

    }

    public void onEvent(int eventType, Bundle params) 
    {
        Log.d(TAG, "onEvent()");
    }

    public void onPartialResults(Bundle partialResults) 
    {
        Log.d(TAG, "onPartialResults()");
    }

    public void onReadyForSpeech(Bundle params) 
    {
        Log.d(TAG, "onReadyForSpeech()");
    }

    public void onResults(Bundle results) 
    {
        Log.d(TAG, "onResults(): " + results);

        String str = new String();

        ArrayList<String> data = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);

        for(int i = 0; i < data.size(); i++)
        {
            str += data.get(i) + "\n";

        }           
        tvOutput.setText(tvOutput.getText().toString() + "\n\n" + "Results: " + str);           

    }
    public void onRmsChanged(float rmsdB) 
    {
        Log.d(TAG, "onRmsChanged()");
    }

}

И моя реализация в MainActivity:

    this.srSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
    this.srSpeechRecognizer.setRecognitionListener(new SpeechListener());

    this.iSpeechIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    this.iSpeechIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    this.iSpeechIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, "voice.recognition.test");      
    this.iSpeechIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 10);

И так оно и началось:

srSpeechRecognizer.startListening(iSpeechIntent);

Журналы с языком:

    12-16 13:50:53.576: D/DreamManagerService(485): Dream finished:   [email protected]
    12-16 13:50:53.576: I/DreamManagerService(485): Leaving dreamland.
    12-16 13:50:53.576: I/DreamController(485): Stopping dream: name=ComponentInfo{com.google.android.deskclock/com.android.deskclock.Screensaver}, isTest=false, userId=0
    12-16 13:50:53.586: I/PowerManagerService(485): Waking up from dream...
    12-16 13:50:53.616: I/ActivityManager(485): No longer want com.google.android.gsf.login (pid 13171): empty #17
    12-16 13:50:56.796: I/GoogleRecognitionServiceImpl(1461): #startListening [de-DE]
    12-16 13:50:56.806: I/ActivityManager(485): Start proc com.google.android.gsf.login for service com.google.android.gsf.login/com.google.android.gsf.loginservice.GoogleLoginService: pid=13343 uid=10019 gids={50019, 3003, 1007, 1028, 1015, 2001, 3006}
    12-16 13:50:56.866: D/MainActivity/SpeechListener(13268): onRmsChanged()
    12-16 13:50:56.886: D/dalvikvm(1461): GC_FOR_ALLOC freed 516K, 12% free 8706K/9892K, paused 18ms, total 18ms
    12-16 13:50:56.906: D/dalvikvm(1461): GC_CONCURRENT freed 160K, 9% free 9015K/9892K, paused 3ms+2ms, total 21ms
    12-16 13:50:56.906: I/AudioService(485):  AudioFocus  requestAudioFocus() from [email protected][email protected]
    12-16 13:50:56.916: I/VS.G3EngineManager(1461): create_rm: m=ENDPOINTER_VOICESEARCH,l=en-US
    12-16 13:50:56.916: D/MainActivity/SpeechListener(13268): onRmsChanged()
    12-16 13:50:56.916: I/VS.G3EngineManager(1461): Brought up new g3 instance :/system/usr/srec/en-US/endpointer_voicesearch.config for: en-USin: 3 ms
    12-16 13:50:56.926: I/ConnectionFactoryImpl(1461): Opening SSL connection: vs.google.com:14259
    12-16 13:50:56.966: D/MainActivity/SpeechListener(13268): onRmsChanged()
    12-16 13:50:57.016: D/MainActivity/SpeechListener(13268): onRmsChanged()
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    12-16 13:50:58.116: I/MainActivity/SpeechListener(13268): onBeginningOfSpeech()
    12-16 13:50:58.126: D/MainActivity/SpeechListener(13268): onRmsChanged()
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    12-16 13:50:59.636: D/MainActivity/SpeechListener(13268): onRmsChanged()
    12-16 13:50:59.646: I/MicrophoneInputStream(1461): mic_close
    12-16 13:50:59.666: I/AudioService(485):  AudioFocus  abandonAudioFocus() from         [email protected][email protected]
    12-16 13:50:59.666: D/dalvikvm(1461): threadid=37: thread exiting, not yet detached (count=0)
    12-16 13:50:59.666: I/MainActivity/SpeechListener(13268): onEndOfSpeech()
    12-16 13:50:59.676: I/decoder(1461): INFO: recognition time wall: 2.732 sec user: 0.54 sec sys: 0.08 sec 
    12-16 13:50:59.686: D/MainActivity/SpeechListener(13268): onRmsChanged()
    12-16 13:50:59.736: D/MainActivity/SpeechListener(13268): onRmsChanged()
    12-16 13:50:59.786: D/MainActivity/SpeechListener(13268): onRmsChanged()
    12-16 13:50:59.826: I/MainActivity/SpeechListener(13268): onResults(): Bundle[mParcelledData.dataSize=292]
    12-16 13:50:59.836: D/MainActivity/SpeechListener(13268): onRmsChanged()
    12-16 13:50:59.886: D/MainActivity/SpeechListener(13268): onRmsChanged()
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    12-16 13:51:00.196: D/MainActivity/SpeechListener(13268): onRmsChanged()

Журналы без разговора:

    12-16 13:53:39.246: I/GoogleRecognitionServiceImpl(1461): #startListening [de-DE]
    12-16 13:53:39.296: D/dalvikvm(1461): GC_FOR_ALLOC freed 567K, 12% free 8708K/9892K, paused 21ms, total 21ms
    12-16 13:53:39.316: D/dalvikvm(1461): GC_CONCURRENT freed 164K, 9% free 9017K/9892K, paused 3ms+2ms, total 21ms
    12-16 13:53:39.316: D/MainActivity/SpeechListener(13441): onRmsChanged()
    12-16 13:53:39.316: I/AudioService(485):  AudioFocus  requestAudioFocus() from         [email protected][email protected]
    12-16 13:53:39.326: I/VS.G3EngineManager(1461): create_rm: m=ENDPOINTER_VOICESEARCH,l=en-US
    12-16 13:53:39.326: I/ConnectionFactoryImpl(1461): Opening SSL connection: vs.google.com:14259
    12-16 13:53:39.326: I/VS.G3EngineManager(1461): Brought up new g3 instance :/system/usr/srec/en-US/endpointer_voicesearch.config for: en-USin: 5 ms
    12-16 13:53:39.366: D/MainActivity/SpeechListener(13441): onRmsChanged()
    12-16 13:53:39.416: D/MainActivity/SpeechListener(13441): onRmsChanged()
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    12-16 13:53:49.816: D/dalvikvm(1461): GC_FOR_ALLOC freed 106K, 9% free 9025K/9892K,         paused 32ms, total 32ms
    12-16 13:53:49.816: I/dalvikvm-heap(1461): Grow heap (frag case) to 9.282MB for 320656-byte allocation
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4b9b3361

ОТВЕТЫ

Ответ 1

Единственное решение, которое наверняка обойдет эту проблему, - использовать стороннюю услугу. 4.1.1 и 4.2 оба полагаются на версию службы распознавания речи, которая не прилипает к документированному поведению в том, что работающая с ней служба умирает молча.

Если вы не хотите использовать сторонний API, и вам необходимо каким-то образом учесть эту смерть службы, это возможно, но это не очень или идеально.

Как только служба погибнет, ни один из следующих методов никогда не будет вызван:

  • onBeginningOfSpeech
  • onError
  • onResults
  • onEndOfSpeech

Но если вызов onBeginningOfSpeech вызывается до того, как служба умирает, вы можете быть уверены, что в конце концов будет вызван либо onError, либо onEndOfSpeech.

Следовательно, , если все, что вы хотите, должно быть уверенным, что вам известно о жизни и смерти службы в Jellybean, обходной путь для этой проблемы во встроенном SpeechRecognizer заключается в следующем:

  • Создайте булевский флаг, например isSpeechRecognizerAlive.
  • При каждом запуске SpeechRecognizer установите флаг выше в значение false.
  • В onBeginningOfSpeech, если он вызывается, установите isSpeechRecognizerAlive в true.
  • Поддерживает обработчик, который на 4-секундной задержке проверяет статус isSpeechRecognizerAlive. Если это ложь, вручную уничтожьте экземпляр SpeechRecognizer. Если is is true, ничего не делайте. Нормальный поток позаботится о вас.

Почему это не идеальное решение для поддержания постоянной настройки распознавания речи

Это не было прямо указано в вашем вопросе, но некоторые люди хотят сделать это, чтобы иметь возможность непрерывного распознавания речи. Это не очень хороший способ сделать это в 4.1.1 и 4.2, потому что служба Google SpeechRecognition теперь запускается с нестандартным звуковым эффектом "bloop". Кажется, нет никакого способа отключить этот звук. Для управления им в API нет ничего. Ваши пользователи НЕ ПОЛУЧАЮТ быть "раздутыми" на 4-секундной повторяющейся петле.

Ответ 2

Вы можете попытаться предоставить следующие RecognizerIntent дополнительные функции:

  • EXTRA_SPEECH_INPUT_COMPLETE_SILENCE_LENGTH_MILLIS
  • EXTRA_SPEECH_INPUT_MINIMUM_LENGTH_MILLIS
  • EXTRA_SPEECH_INPUT_POSSIBLY_COMPLETE_SILENCE_LENGTH_MILLIS

хотя ни один из них действительно не подходит в этом случае. Android просто не предлагает "WAIT_UNTIL_I_START_SPEAKING" дополнительно. Это не ошибка (в желе Bean или где-либо когда-либо), это просто отсутствие функции. И даже если такой дополнительный добавлен в будущую версию Android, не может быть гарантии того, что приложение распознавания речи (например, Google Voice Search) действительно реализует это. Документация RecognizerIntent содержит множество дополнительных функций с неуказанным поведением.

Лучшим вариантом может быть перезапуск распознавателя, как только вы получите onEndOfSpeech или onError.

Ответ 3

Я сделал Сервис, который носит Audio to Speech Recognizer, который имитирует непрерывность, перезагружая себя каждый раз, когда есть ошибка или результат. Как вы можете видеть, мой сервис прослушивает широковещательный приемник, чтобы запустить/остановить непрерывный ASR (это аккумулятор стоит дорого, поэтому я рекомендую вам запускать эту непрерывную услугу ASR только тогда, когда ваш соответствующий пользовательский интерфейс находится на переднем плане). Результаты ASR также передаются в остальную часть приложения. Вы можете игнорировать широковещательную рассылку, услугу и прослушиватель Recognizer - основная идея. DONT забыть разрешение INTERNET и манифест и объявление службы:

<service android:name=".speechRecognitionService" />

SpeechRecognitionService:

    /**
     * Created by Josh on 22/07/15.
     *  This service bears an Audio to Speech recognizer (ASR), once this service is started,
     *  it listens a broadcast called "asrService".
     *  the Service starts ASR when it receives a "START-ASR" value inside the "message" parameter of its broadcast receiver
     *  the Service stopss ASR when it receives a  "STOP-ASR" value inside the "message" parameter of its broadcast receiver
     Example:
     Intent intent = new Intent("asrService");
     intent.putExtra("message", "STOP-ASR");
     LocalBroadcastManager.getInstance(context).sendBroadcast(intent);
     Once the ASR Listener that this service bears is running, it will broadcast the results is gets.
     To catch ASR results, implement a Broadcast receiver that listens to app.asrResult="ASRresult", for example:

     private BroadcastReceiver ASRReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String message = intent.getStringExtra("message");
            if(message!=null) {
                app.logwhite("ASR says: "+message);
            }
        }
    };
     LocalBroadcastManager.getInstance(this).registerReceiver(ASRReceiver, new IntentFilter(app.asrResult));

     Unregister the broadcast receiver likewise:
     LocalBroadcastManager.getInstance(this).unregisterReceiver(ASRReceiver);
     */

    public class speechRecognitionService extends Service {

        private static speechRecognitionListenerJosh speechReconListener;
        private static SpeechRecognizer mSpeechRecognizer=null;
        private static Intent mSpeechRecognizerIntent;
        private static boolean mIslistening=false;


        //======== BROADCAST RECEIVERS
        // handler for received Intents for the "my-event" event
        private BroadcastReceiver startASRReceiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                String message = intent.getStringExtra("message");
                if(message.equals("START-ASR")) {
                    if (mIslistening == false) {


                        if (mSpeechRecognizer != null) {
                            mSpeechRecognizer.destroy();
                            mSpeechRecognizer = null;
                        }
                        app.logy("==BROADCAST Rx: START_ASR");

                        mSpeechRecognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
                        mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE, "en-US");
                        mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
                        //mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_WEB_SEARCH);
                        //mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE ,   this.getPackageName());
                        mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_COMPLETE_SILENCE_LENGTH_MILLIS, 5000);
                        mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_MINIMUM_LENGTH_MILLIS, 5000);
                        //mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_PARTIAL_RESULTS, true);
                        //mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 3);

                        mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(getApplicationContext());
                        speechReconListener = new speechRecognitionListenerJosh();
                        mSpeechRecognizer.setRecognitionListener(speechReconListener);

                        mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
                    } else {
                        app.logy("==BROADCAST Rx: STOP_ASR");
                        mSpeechRecognizer.stopListening();
                        mSpeechRecognizer.destroy();
                        speechReconListener = null;
                    }
                }

                if(message.equals("STOP-ASR")){
                    app.logy("==BROADCAST Rx: STOP_ASR");
                    mSpeechRecognizer.stopListening();
                    mSpeechRecognizer.destroy();
                    speechReconListener = null;
                }
            }
        };


        @Override
        public void onCreate() {
            super.onCreate();

            mSpeechRecognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
            mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE, "en-US");
            mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL  ,   RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
            //mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_WEB_SEARCH);
            mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE ,   this.getPackageName());
            mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_MINIMUM_LENGTH_MILLIS, 4000);
            mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 3);
            mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
            speechReconListener = new speechRecognitionListenerJosh();
            mSpeechRecognizer.setRecognitionListener(speechReconListener);

            LocalBroadcastManager.getInstance(this).registerReceiver(startASRReceiver, new IntentFilter("asrService"));
            app.toastlog("==ASR Service - CREATED");
        }

        @Override
        public void onDestroy() {
            super.onDestroy();
            LocalBroadcastManager.getInstance(this).unregisterReceiver(startASRReceiver);

            if (mSpeechRecognizer != null){
                mSpeechRecognizer.destroy();
                mSpeechRecognizer=null;
            }
            app.toastlog("==ASR Service - DESTROYED");
        }

        @Override
        public IBinder onBind(Intent intent) {
            return null;
        }

        @Override //rather not use, runs before onStart
        public int onStartCommand(Intent intent, int flags, int startId) {
            return super.onStartCommand(intent, flags, startId);
        }

        @Override
        public void onStart(Intent intent, int startId) {
            super.onStart(intent, startId);
            app.toastlog("==ASRservice - onStart");
        }



        private class speechRecognitionListenerJosh  implements RecognitionListener {

            @Override
            public void onBeginningOfSpeech() {
                mIslistening=true;
                app.loge("=ASRListener - onBeginingOfSpeech");
            }

            @Override
            public void onBufferReceived(byte[] buffer){

            }

            @Override
            public void onEndOfSpeech(){
                app.loge("=ASRListener - onEndOfSpeech");
            }

            @Override
            public void onError(int error) {
                mIslistening=false;
                String code= Integer.toString(error);

                if(error==SpeechRecognizer.ERROR_CLIENT){ // 5
                    code="ERROR_CLIENT";
                    mIslistening=false;
                    mSpeechRecognizer.destroy();
                    Intent intent = new Intent("asrService");
                    intent.putExtra("message", "START-ASR");
                    LocalBroadcastManager.getInstance(app.appContext).sendBroadcast(intent);
                }

                if(error==SpeechRecognizer.ERROR_SPEECH_TIMEOUT){ // 6
                    code="SPEECH_TIMEOUT";
                    mSpeechRecognizer.stopListening();
                    mIslistening=false;
                    Intent intent = new Intent("asrService");
                    intent.putExtra("message", "START-ASR");
                    LocalBroadcastManager.getInstance(app.appContext).sendBroadcast(intent);
                    //Usualy bounces back to ERROR_CLIENT.
                }
                if(error==SpeechRecognizer.ERROR_NO_MATCH){ // 7
                    code="ERROR_NO_MATCH";
                    mIslistening=false;
                    Intent intent = new Intent("asrService");
                    intent.putExtra("message", "START-ASR");
                    LocalBroadcastManager.getInstance(app.appContext).sendBroadcast(intent);
                    //Usually bounces back to ERROR_CLIENT.
                }

                app.loge("=ASRListener - ASR Error: "+code);
                /*
                // 1 = NETWORK_TIMEOUT
                // 2 = ERROR_NETWORK
                // 3 = ERROR_AUDIO
                // 4 = ERROR_SERVER
                // 5 = ERROR_CLIENT
                // 8 = ERROR_RECOGNIZER_BUSY
                // 9 = ERROR_INSUFFICIENT_PERMISSIONS
                */

            }

            @Override
            public void onEvent(int eventType, Bundle params){

            }

            @Override //Somehow doesn't trigger upon partial results
            public void onPartialResults(Bundle partialResults){
                ArrayList<String> results=partialResults.getStringArrayList("EXTRA_PARTIAL_RECOGNITION");
                if(results!=null) {
                    if (results.size() > 0) {
                        app.logwhite("=== ASR Partial Results: " + results);
                    }
                }
            }

            @Override
            public void onReadyForSpeech(Bundle params){
                app.loge("=ASRListener - onReadyForSpeech, LISTENING  (((( ");
            }

            @Override
            public void onResults(Bundle resultBundle){
                app.loge("=ASRListener - onResults");
                ArrayList<String> result = resultBundle.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
                if(result!=null) {  //when speaking timeout happen, results is null

                    // matches are the return values of speech recognition engine

                    if (result.size() > 0) {
                        app.logwhite("=== ASR Results:");
                        app.logwhite(result.get(0));
                        //BC name, message
                        app.broadcast(app.asrResult,result.get(0)); //The result is broadcast to the entire app
                    }

                }

                mIslistening=false;
                Intent intent = new Intent("asrService");
                intent.putExtra("message", "START-ASR");
                LocalBroadcastManager.getInstance(app.appContext).sendBroadcast(intent);
            }

            @Override
            public void onRmsChanged(float rmsdB){
                //VOLUME VUmeter!!!!
            }
        }
    }

Ответ 4

Ваш конец речи вызывает, когда вы говорите что-то, и это означает, что он что-то слышал. но странно, что он все еще слушает, я думаю, что он начинает слушать снова, показывая начало прослушивания. Думаю, вам нужно сделать чек в результатах On. если результаты будут вашими желаемыми результатами, то оно одобрено для того чтобы превратить речь и освободить ее еще вы можете остановить и начать распознавание речи снова. он снова начнет прослушиваться даже после того, как будет вызван конец речи.