Android RecognitionListener: onResults étant appelé deux fois

Question

J'ai un projet utilisant RecognitionListener écrit en Kotlin. La fonction parole-texte a toujours été un succès et n'a jamais posé de problèmes.

Depuis la semaine dernière, sa fonction onResult a commencé à être appelée deux fois. Aucune modification n'a été apportée au projet. J'ai testé d'anciennes versions du projet (il y a des mois) et celles-ci avaient le même problème.

Il existe trois cas différents:

1. Petit texte (1 à 8 mots) et SpeechRecognizer arrêtés automatiquement -> onResult () appelé deux fois;
2. Gros texte (9 mots ou plus) et SpeechRecognizer arrêtés automatiquement -> Comportement normal (onResult () appelé une fois);
3. Toute taille de texte et fonction SpeechRecognizer stopListening () appelée manuellement (à partir du code) -> Comportement normal.

Voici le code de la classe VoiceRecognition speech-to-text:

class VoiceRecognition(private val activity: Activity, language: String = "pt_BR") : RecognitionListener {

    private val AudioLogTag = "AudioInput"

    var voiceRecognitionIntentHandler: VoiceRecognitionIntentHandler? = null
    var voiceRecognitionOnResultListener: VoiceRecognitionOnResultListener? = null //Must have this
    var voiceRecognitionLayoutChanger: VoiceRecognitionLayoutChanger? = null

    var isListening = false

    private val intent: Intent
    private var speech: SpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(activity)

    init {
        speech.setRecognitionListener(this)

        intent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH)
        intent.putExtra(
            RecognizerIntent.EXTRA_LANGUAGE_MODEL,
            RecognizerIntent.LANGUAGE_MODEL_FREE_FORM
        )
        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, language)
    }

    //It is important to put this function inside a clickListener
    fun listen(): Boolean {
        if (ContextCompat.checkSelfPermission(activity, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(activity, arrayOf(Manifest.permission.RECORD_AUDIO), 1)
            return false
        }

        speech.startListening(intent)

        Log.i(AudioLogTag, "startListening")

        return true
    }

    //Use this if you want to stop listening but still get recognition results
    fun endListening(){
        Log.i(AudioLogTag, "stopListening")

        speech.stopListening()
        isListening = false
    }

    fun cancelListening(){
        Log.i(AudioLogTag, "cancelListening")

        speech.cancel()
        voiceRecognitionLayoutChanger?.endListeningChangeLayout()
        isListening = false
    }

    override fun onReadyForSpeech(p0: Bundle?) {
        Log.i(AudioLogTag, "onReadyForSpeech")

        voiceRecognitionLayoutChanger?.startListeningChangeLayout()
        isListening = true
    }

    override fun onRmsChanged(p0: Float) {
//        Log.i(AudioLogTag, "onRmsChanged: $p0")
//        progressBar.setProgress((Int) p0)
    }

    override fun onBufferReceived(p0: ByteArray?) {
        Log.i(AudioLogTag, "onBufferReceived: $p0")
    }

    override fun onPartialResults(p0: Bundle?) {
        Log.i(AudioLogTag, "onPartialResults")
    }

    override fun onEvent(p0: Int, p1: Bundle?) {
        Log.i(AudioLogTag, "onEvent")
    }

    override fun onBeginningOfSpeech() {
        Log.i(AudioLogTag, "onBeginningOfSpeech")
    }

    override fun onEndOfSpeech() {
        Log.i(AudioLogTag, "onEndOfSpeech")

        voiceRecognitionLayoutChanger?.endListeningChangeLayout()
        isListening = false
    }

    override fun onError(p0: Int) {
        speech.cancel()
        val errorMessage = getErrorText(p0)
        Log.d(AudioLogTag, "FAILED: $errorMessage")
        voiceRecognitionLayoutChanger?.endListeningChangeLayout()
        isListening = false
    }

    override fun onResults(p0: Bundle?) {

        val results: ArrayList<String> = p0?.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION) as ArrayList<String>

        Log.i(AudioLogTag, "onResults -> ${results.size}")

        val voiceIntent: Int? = voiceRecognitionIntentHandler?.getIntent(results[0])
        if (voiceIntent != null && voiceIntent != 0) {
            voiceRecognitionIntentHandler?.handle(voiceIntent)
            return
        }

        voiceRecognitionOnResultListener!!.onResult(results[0])
    }

    private fun getErrorText(errorCode: Int): String {
        val message: String
        when (errorCode) {
            SpeechRecognizer.ERROR_AUDIO -> message = "Audio recording error"
            SpeechRecognizer.ERROR_CLIENT -> message = "Client side error"
            SpeechRecognizer.ERROR_INSUFFICIENT_PERMISSIONS -> message = "Insufficient permissions"
            SpeechRecognizer.ERROR_NETWORK -> message = "Network error"
            SpeechRecognizer.ERROR_NETWORK_TIMEOUT -> message = "Network timeout"
            SpeechRecognizer.ERROR_NO_MATCH -> message = "No match"
            SpeechRecognizer.ERROR_RECOGNIZER_BUSY -> message = "RecognitionService busy"
            SpeechRecognizer.ERROR_SERVER -> message = "Error from server"
            SpeechRecognizer.ERROR_SPEECH_TIMEOUT -> message = "No speech input"
            else -> message = "Didn't understand, please try again."
        }
        return message
    }

    //Use it in your overriden onPause function.
    fun onPause() {
        voiceRecognitionLayoutChanger?.endListeningChangeLayout()
        isListening = false

        speech.cancel()
        Log.i(AudioLogTag, "pause")
    }

    //Use it in your overriden onDestroy function.
    fun onDestroy() {
        speech.destroy()
    }

listen (), endListening () et cancelListening () sont tous appelés à partir d'un bouton.

Answer 1

J'utilise le code suivant basé sur le décalage horaire, qui devrait continuer à fonctionner si Google parvient à résoudre ce bogue.

long mStartTime = System.currentTimeMillis(); // Global Var


@Override
public void onResults(Bundle results)
{
   long difference = System.currentTimeMillis() - mStartTime;
   if (difference < 100)
   {
       return;
   }
   mStartTime = System.currentTimeMillis();

   ArrayList<String> textMatchList = 
   results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
   
   Event_Handler(VOICE_DATA, textMatchList.get(0));
   // process event
}