Uwp 超宽带语音识别

我制作了一个简单的UWP应用程序来测试语音识别功能，但我有一些错误，它显示：System.UnauthorizedAccessException:'访问被拒绝。（来自HRESULT的异常：0x80070005（E_ACCESSDENIED））'

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右键单击解决方案资源管理器面板中的软件包。appxmanifest以启用麦克风功能

您是否已为应用程序提供麦克风功能？

  public sealed partial class MainPage : Page
{

    public MainPage()
    {
        this.InitializeComponent();
    }

    SpeechRecognizer recognizer = new SpeechRecognizer();


    private async void Record_Click(object sender, RoutedEventArgs e)
    {

        var topUserLanguage = GlobalizationPreferences.Languages[0];
        var language = new Language(topUserLanguage);
        recognizer = new SpeechRecognizer(language);
        await recognizer.CompileConstraintsAsync();

        recognizer.Timeouts.InitialSilenceTimeout = TimeSpan.FromDays(1);

        var recordResult = await this.recognizer.RecognizeAsync();

        result.Text = recordResult.Text;


    }



}