无法在Android语音识别中使用长输入,初始化时出错?

时间:2018-09-03 08:25:37

标签: android xamarin.android speech-recognition google-speech-api

我正在尝试在应用程序(启动器)中使用Google语音识别。当我尝试将其用于诸如 Call to X 之类的简短命令或说诸如 123456789 之类的简短数字时,一切正常,但只要我尝试提供更长的输入(这需要更多时间才能说出)语音识别活动在屏幕上挂起,并且没有任何作用。

我在日志中找不到有用的东西,也不知道初始化语音识别时是否做错了什么。

这是我初始化它的时间:

var intent = new Intent(RecognizerIntent.ActionRecognizeSpeech);

intent.PutExtra(RecognizerIntent.ExtraLanguageModel, RecognizerIntent.LanguageModelFreeForm);
StartActivityForResult(intent, SpeechResult);

这是我使用结果的地方

protected override void OnActivityResult(int requestCode, Result resultCode, Intent data)
        {
            base.OnActivityResult(requestCode, resultCode, data);


            if (requestCode == SpeechResult && data != null)
            {

                var text = data.GetStringArrayListExtra(RecognizerIntent.ExtraResults);


                getterForNumber = text[0];
                getterForNumber = getterForNumber.Replace(" ", String.Empty);

                bool inInt = getterForNumber.All(char.IsDigit);

                if (!inInt)
                {
                    var activity2 = new Intent(this, typeof(fittizioAct));
                    activity2.PutExtra("fittizioData", "Cannot Recognise the Number");
                    activity2.PutExtra("direzione", "vocale");
                    StartActivity(activity2);
                    Finish();
                }
                else
                {
                    var passNameAndNumberRubr = new Intent(this, typeof(VocalSavedAct));
                    passNameAndNumberRubr.PutExtra("saveNumberRubr", getterForNumber);
                    passNameAndNumberRubr.PutExtra("saveNameRubr", getterForName);

                    //sqldbRubrica.AddRecord(getterForName, getterForNumber);

                    StartActivity(passNameAndNumberRubr);
                    Finish();
                }




            }
            else if (requestCode == SpeechResult && data == null)
            {
                AudioManager vol = (AudioManager)this.GetSystemService(Context.AudioService);
                int volume = vol.GetStreamVolume(Android.Media.Stream.Music);
                CrossTextToSpeech.Current.Speak("Voice Command Canceled",
                pitch: 1,
                speakRate: speed,
                volume: (float)volume,
                crossLocale: locale);
            }
}

P.S。该代码在C#中,因为我正在使用Xamarin。

1 个答案:

答案 0 :(得分:0)

尝试像这样修改initent

var voiceIntent = new Intent(RecognizerIntent.ActionRecognizeSpeech);
            voiceIntent.PutExtra(RecognizerIntent.ExtraLanguageModel, RecognizerIntent.LanguageModelFreeForm);


            voiceIntent.PutExtra(RecognizerIntent.ExtraPrompt, "Speak now");

            voiceIntent.PutExtra(RecognizerIntent.ExtraSpeechInputCompleteSilenceLengthMillis, 1500);
            voiceIntent.PutExtra(RecognizerIntent.ExtraSpeechInputPossiblyCompleteSilenceLengthMillis, 1500);
            voiceIntent.PutExtra(RecognizerIntent.ExtraSpeechInputMinimumLengthMillis, 15000);
            voiceIntent.PutExtra(RecognizerIntent.ExtraMaxResults, 1);
            voiceIntent.PutExtra(RecognizerIntent.ExtraLanguage, Java.Util.Locale.Default);