Question

我想让Windows::Media::SpeechRecognition在Windows10上工作，但我无法让我的Hello World应用程序正常工作。

这是我做的：

我在VS2017中创建了一个新的UWP空白应用程序

在OnLaunched()方法中，我调用Init()方法初始化语音识别：

void App::Init()
{
    speechRecognizer = ref new Windows::Media::SpeechRecognition::SpeechRecognizer(Windows::Media::SpeechRecognition::SpeechRecognizer::SystemSpeechLanguage);

    Platform::Collections::Vector<String^>^ speech_command_list = ref new Platform::Collections::Vector<String^>();
    speech_command_list->Append(StringReference(L"pause"));
    speech_command_list->Append(StringReference(L"play"));
    speech_command_list->Append(StringReference(L"download"));
    speech_command_list->Append(StringReference(L"test"));

    SpeechRecognitionListConstraint^ speech_constraint = ref new SpeechRecognitionListConstraint(speech_command_list);

    speechRecognizer->Constraints->Append(speech_constraint);

    create_task(speechRecognizer->CompileConstraintsAsync()).then([this](SpeechRecognitionCompilationResult^ compilationResult)
    {
        if (compilationResult->Status == SpeechRecognitionResultStatus::Success)
        {

            speechRecognizer->ContinuousRecognitionSession->ResultGenerated += ref new TypedEventHandler<SpeechContinuousRecognitionSession^, SpeechContinuousRecognitionResultGeneratedEventArgs^>(this, &App::OnSpeechRecognized);
            speechRecognizer->HypothesisGenerated += ref new TypedEventHandler<Windows::Media::SpeechRecognition::SpeechRecognizer^, SpeechRecognitionHypothesisGeneratedEventArgs^>(this, &App::OnHypothesisGenerated);
            speechRecognizer->StateChanged += ref new TypedEventHandler<Windows::Media::SpeechRecognition::SpeechRecognizer^, SpeechRecognizerStateChangedEventArgs^>(this, &App::OnStateChanged);
            speechRecognizer->RecognitionQualityDegrading += ref new TypedEventHandler<Windows::Media::SpeechRecognition::SpeechRecognizer^, SpeechRecognitionQualityDegradingEventArgs^>(this, &App::OnQualityIssue);

            TimeSpan endSilenceTime;
            endSilenceTime.Duration = 12000000L;
            speechRecognizer->Timeouts->EndSilenceTimeout = endSilenceTime; // (1.2 seconds in nanoseconds)

            speechRecognizer->ContinuousRecognitionSession->StartAsync();
        }
        else
        {
            // Handle errors here.
        }
    });
}

代码编译并启动，语音约束的编译成功，我在回调OnStateChanged中断了一次，新的状态值为Idle

就是这样。在我的麦克风讲话时，我没有收到任何回调。

为了记录，我的麦克风已正确插入，它是Windows上的默认麦克风，并且功能正常。

Answer 1

我发现我的申请出了什么问题。如果有人遇到同样的问题，我会在这里发布答案。

事实证明，这种类型的UWP应用程序嵌入了一个名为Package.appxmanifest的文件，该文件包含应用程序的一些设置。

此清单文件具有＆＃34;功能＆＃34;部分，我必须打开＆＃34;互联网（客户端）＆＃34;和＃34;麦克风＆＃34;能力。

重新编译后，一切正常。

Windows语音识别Hello World无法正常工作

1 个答案: