android - 如何在 Google 识别器 Intent (语音识别)Android 中增加语音聆听时间

Question

我确实尝试给下面这些额外的时间以毫秒为单位

Recognizer Intent.EXTRA_SPEECH_INPUT_POSSIBLY_COMPLETE_SILENCE_LENGTH_MILLIS
Recognizer Intent.EXTRA_SPEECH_INPUT_COMPLETE_SILENCE_LENGTH_MILLIS
Recognizer Intent.EXTRA_SPEECH_INPUT_MINIMUM_LENGTH_MILLIS

但不影响语音收听时间!
我现在得到的语音收听时间只有 3 秒!
如何实现 10 秒的聆听时间

Answer 1

它似乎只适用于下面的 ICS:
https://stackoverflow.com/a/17675098/9427932

但是您始终可以通过创建自己的类并继承语音识别器来自定义谷歌语音，我在 Xamarin Android 上编写了这些代码，因此它与 android 非常相似:

public class CustomRecognizer : Java.Lang.Object, IRecognitionListener, TextToSpeech.IOnInitListener
{
private SpeechRecognizer _speech;
private Intent _speechIntent;


public string Words;


public CustomRecognizer(Context _context)
{
    this._context = _context;
    Words = "";
    _speech = SpeechRecognizer.CreateSpeechRecognizer(this._context);
    _speech.SetRecognitionListener(this);
    _speechIntent = new Intent(RecognizerIntent.ActionRecognizeSpeech);
    _speechIntent.PutExtra(RecognizerIntent.ExtraLanguageModel, RecognizerIntent.LanguageModelFreeForm);
    _speechIntent.PutExtra(RecognizerIntent.ActionRecognizeSpeech, RecognizerIntent.ExtraPreferOffline);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputCompleteSilenceLengthMillis, 1000); 
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputPossiblyCompleteSilenceLengthMillis, 1000);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputMinimumLengthMillis, 1500);
}

void startover()
{
    _speech.Destroy();
    _speech = SpeechRecognizer.CreateSpeechRecognizer(this._context);
    _speech.SetRecognitionListener(this);
    _speechIntent = new Intent(RecognizerIntent.ActionRecognizeSpeech);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputCompleteSilenceLengthMillis, 1000);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputPossiblyCompleteSilenceLengthMillis, 1000);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputMinimumLengthMillis, 1500);
StartListening();
}
public void StartListening()
{
    _speech.StartListening(_speechIntent);
}

public void StopListening()
{
    _speech.StopListening();
}

public void OnBeginningOfSpeech()
{

}

public void OnBufferReceived(byte[] buffer)
{
}

public void OnEndOfSpeech()
{

}

public void OnError([GeneratedEnum] SpeechRecognizerError error)
{
    Words = error.ToString();
    startover();
}

public void OnEvent(int eventType, Bundle @params)
{
}

public void OnPartialResults(Bundle partialResults)
{
}

public void OnReadyForSpeech(Bundle @params)
{
}

public void OnResults(Bundle results)
{

    var matches = results.GetStringArrayList(SpeechRecognizer.ResultsRecognition);
    if (matches == null)
        Words = "Null";
    else
        if (matches.Count != 0)
        Words = matches[0];
    else
        Words = "";

    //do anything you want for the result
    }
    startover();
}

public void OnRmsChanged(float rmsdB)
{

}

public void OnInit([GeneratedEnum] OperationResult status)
{
    if (status == OperationResult.Error)
        txtspeech.SetLanguage(Java.Util.Locale.Default);
}}

您可以调用 启动() 结束后立即开始录制，因此它看起来像是“连续语音”(在您的情况下为 10 秒)