Speech SDK - LoadGrammar() raising UnauthorizedAccessExcepti

奇怪的是，我似乎记得Speech SDK也有类似的问题，但找不到解决方案。我认为这涉及到更改计算机上某个文件或文件夹的所有者或访问权限。也许更多的谷歌搜索可以帮助你找到我当时找到的解决方案，或者你可以使用ProcessMonitor来查看流程试图做什么，但失败了。也许eventvwr会展示一些东西。

我尝试安装Speech Platform SDK 11和Speech Platform Runtime，但我认为这可能是在.NET包装中使用Microsoft.Speech命名空间的技术的服务器版本。我也安装了Speech SDK 5.3，但我认为那不是最新版本。最终，我安装了Windows8.1SDK，我认为这对我来说很好。这在我的WPF应用程序中运行良好：

XAML:

<Window x:Class="SpeechTestApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <TextBlock
            x:Name="tb"/>
    </Grid>
</Window>

C#

using System.Diagnostics;
using System.Globalization;
using System.Speech.Recognition;
using System.Windows;
namespace SpeechTestApp
{
    public partial class MainWindow : Window
    {
        private SpeechRecognitionEngine recognizer;
        public MainWindow()
        {
            InitializeComponent();
            // Create a SpeechRecognitionEngine object for the default recognizer in the en-US locale.
            this.recognizer = new SpeechRecognitionEngine(new CultureInfo("en-US"));
            {
                // Create a grammar for finding services in different cities.
                Choices services = new Choices(new string[] { "restaurants", "hotels", "gas stations" });
                Choices cities = new Choices(new string[] { "Seattle", "Boston", "Dallas" });
                GrammarBuilder findServices = new GrammarBuilder("Find");
                findServices.Append(services);
                findServices.Append("near");
                findServices.Append(cities);
                // Create a Grammar object from the GrammarBuilder and load it to the recognizer.
                Grammar servicesGrammar = new Grammar(findServices);
                recognizer.LoadGrammarAsync(servicesGrammar);
                // Add a handler for the speech recognized event.
                recognizer.SpeechRecognized += recognizer_SpeechRecognized;
                recognizer.SpeechDetected += RecognizerOnSpeechDetected;
                recognizer.SpeechHypothesized += RecognizerOnSpeechHypothesized;
                recognizer.SpeechRecognitionRejected += RecognizerOnSpeechRecognitionRejected;
                recognizer.AudioStateChanged += RecognizerOnAudioStateChanged;
                recognizer.AudioSignalProblemOccurred += RecognizerOnAudioSignalProblemOccurred;
                // Configure the input to the speech recognizer.
                recognizer.SetInputToDefaultAudioDevice();
                // Start asynchronous, continuous speech recognition.
                recognizer.RecognizeAsync(RecognizeMode.Multiple);
            }
        }
        private void RecognizerOnAudioSignalProblemOccurred(object sender, AudioSignalProblemOccurredEventArgs audioSignalProblemOccurredEventArgs)
        {
            Debug.WriteLine(audioSignalProblemOccurredEventArgs.AudioSignalProblem.ToString());
        }
        private void RecognizerOnAudioStateChanged(object sender, AudioStateChangedEventArgs audioStateChangedEventArgs)
        {
            Debug.WriteLine(audioStateChangedEventArgs.AudioState.ToString());
        }
        private void RecognizerOnSpeechRecognitionRejected(object sender, SpeechRecognitionRejectedEventArgs speechRecognitionRejectedEventArgs)
        {
            Debug.WriteLine("RecognizerOnSpeechRecognitionRejected: " + speechRecognitionRejectedEventArgs.Result.Text);
        }
        private void RecognizerOnSpeechHypothesized(object sender, SpeechHypothesizedEventArgs speechHypothesizedEventArgs)
        {
            Debug.WriteLine("Hypothesized: " + speechHypothesizedEventArgs.Result.Text);
            tb.Text = speechHypothesizedEventArgs.Result.Text;
        }
        private void RecognizerOnSpeechDetected(object sender, SpeechDetectedEventArgs e)
        {
            Debug.WriteLine("Detected position: " + e.AudioPosition);
        }
        private void recognizer_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
        {
            Debug.WriteLine("Recognized text: " + e.Result.Text);
            tb.Text = e.Result.Text;
        }
    }
}