SpeechRecognizer 将重复，而不是运行永久

Question

我正在尝试开发类似于 Google 助手的东西。所以当我说“好的应用程序”时，它应该处理。所以我刚刚在后台创建了一个运行的服务：

public class SttService extends Service implements RecognitionListener {
    private static final String TAG = "SstService";
    SpeechRecognizer mSpeech;

    private void speak() {
        mSpeech = SpeechRecognizer.createSpeechRecognizer(SttService.this);
        mSpeech.setRecognitionListener(SttService.this);

        Intent intent1 = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
        intent1.putExtra(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE, "en");

        mSpeech.startListening(intent1);
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.e(TAG, "onStartCommand: I am running");

        speak();

        return START_STICKY;
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        Log.e(TAG, "onBind: ");
        return null;
    }

    @Override
    public void onReadyForSpeech(Bundle params) {
        Log.e(TAG, "onReadyForSpeech: ");
    }

    @Override
    public void onBeginningOfSpeech() {
        Log.e(TAG, "onBeginningOfSpeech: ");
    }

    @Override
    public void onRmsChanged(float rmsdB) {
        // Log.e(TAG, "onRmsChanged: ");
    }

    @Override
    public void onBufferReceived(byte[] buffer) {
        Log.e(TAG, "onBufferReceived: ");
    }

    @Override
    public void onEndOfSpeech() {
        Log.e(TAG, "onEndOfSpeech: ");
    }

    @Override
    public void onError(int error) {
        Log.e(TAG, "onError: " + error);
        if (error == 7) {
            speak();
        }
    }

    @Override
    public void onResults(Bundle results) {
        ArrayList<String> resultsStringArrayList = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
        String mainResult = resultsStringArrayList.get(0);
        Log.e(TAG, "onResults: " + mainResult);

        if (mainResult.equalsIgnoreCase("Okay App")) {
            System.out.println("What's up?");
        }

        mSpeech.destroy();
        mSpeech = null;
        speak();

    }

    @Override
    public void onPartialResults(Bundle partialResults) {
        Log.e(TAG, "onPartialResults: ");
    }

    @Override
    public void onEvent(int eventType, Bundle params) {
        Log.e(TAG, "onEvent: ");
    }
}

我的问题是应用程序没有永久监听。它开始收听然后有一个结果。当我什么都不说时，它会听大约 2 秒，然后 SpeechRecognizer 将被销毁，这样另一个语音就可以开始了。所以在它被销毁的时候，有一个中断，当我在此期间说些什么时，它不会被识别。

我的应用程序没有按照我的要求运行。可能我做的完全错了。所以我想要实现的是一个 SpeechRecognizer 永久运行并且只在我说“Okay App”时处理。我该怎么做？

Answer 1

SpeechRecognizer 就是这样设计的。它不是为了永久的背景聆听，而是为了短期的即时响应。就像有人点击搜索栏中的麦克风按钮一样。如果你想要永久的背景聆听，你将不得不降低水平并自己做。

SpeechRecognizer 将重复，而不是运行永久

SpeechRecognizer will be repeated, instead of running permanently

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SpeechRecognizer 将重复，而不是 运行 永久

SpeechRecognizer will be repeated, instead of running permanently

java

android

speech-to-text

SpeechRecognizer 将重复，而不是运行永久