Question

我知道SpeechRecognizer在android中是如何工作的。我要求我需要在一段时间后调用 SpeechRecognizer.stopListening（）方法。但在那之后，当我再次开始倾听时，它将无法工作。

启动SpeechRecognizer的代码

private void promptSpeechInput() {
    /*
    Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
            RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
    intent.putExtra(RecognizerIntent.EXTRA_PROMPT,
            getString(R.string.speech_prompt));
    try {
        startActivityForResult(intent, REQ_CODE_SPEECH_INPUT);
    } catch (ActivityNotFoundException a) {
        Toast.makeText(getApplicationContext(),
                getString(R.string.speech_not_supported),
                Toast.LENGTH_SHORT).show();
    }
    */

    speechIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    speechIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    speechIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, context.getPackageName());
    // for more: https://stackoverflow.com/questions/7973023/what-is-the-list-of-supported-languages-locales-on-android
    /*intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, "en_IN"); */
    speechIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
    speechIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 1);
    speechIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_MINIMUM_LENGTH_MILLIS, 200);
    speechIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_COMPLETE_SILENCE_LENGTH_MILLIS, new Long(5000));
    speechIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_POSSIBLY_COMPLETE_SILENCE_LENGTH_MILLIS, new Long(5000));
    speechIntent.putExtra("android.speech.extra.DICTATION_MODE", false);
    speechIntent.putExtra(RecognizerIntent.EXTRA_PARTIAL_RESULTS, false);
    /*
    intent.putExtra("android.speech.extra.GET_AUDIO_FORMAT", "audio/AMR");
    intent.putExtra("android.speech.extra.GET_AUDIO", true);
    */

    sr.startListening(speechIntent);
}

说完几秒后，我确实使用了

sr.stopListening();

在 onResults 收到结果后，我试图再次使用

启动它

sr.startListening(speechIntent);

但它不起作用。我该怎么做才能让它发挥作用？

修改

如果我再次调用 promptSpeechInput（）; 方法而不是 sr.startListening（speechIntent）; ，它会重复给我SpeechRecognizer.ERROR_RECOGNIZER_BUSY错误。

Answer 1

您需要再次设置 RecognitionListener 才能使其正常工作。听起来很奇怪，每当你需要听取用户重置并再次设置监听器以使其工作时。

如果您正在寻找快速解决方案，可以尝试DroidSpeech，这可以解决所有繁重的问题。只需几行代码，您就可以立即完成语音识别。

DroidSpeech droidSpeech = new DroidSpeech(this, null);
droidSpeech.setOnDroidSpeechListener(this);

要开始收听用户，请拨打以下代码，

droidSpeech.startDroidSpeechRecognition();

您将在侦听器方法中获得语音结果

@Override
public void onDroidSpeechFinalResult(String finalSpeechResult, boolean droidSpeechWillListen)
{
  // Do whatever you want with the speech result
}

Android SpeechRecognizer无法再次启动

1 个答案: