适用于C# WinForm应用的免费语音识别

Question

我正在尝试寻找免费的语音识别C#窗体应用程序可执行文件，它可以作为谷歌语音识别，识别和转换绝对新词到文本。

我试着以不同的方式使用System.Speech.Recognition；，但它对预先录制的命令很有效，我无法获得这样的结果，因为它与谷歌语音识别一起使用，例如，它至少有95%的正确结果，这是足够好的，但很明显，如果我没有密钥，它就不能免费使用，也无法在可执行文件中使用它。

所以我想试试Microsoft Cognitive Services的Bing Speech API，但是找不到任何如何编码的例子，一些基本的例子。如果有人用过这个工具，你能帮我弄清楚吗？

Answer 1

嗨，也许这可以帮助你一个简单的冰语音应用程序接口的例子，这不是winform这是WPF应用程序C#

using Microsoft.CognitiveServices.SpeechRecognition;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Microsoft.ProjectOxford.SpeechRecognition;
using System.Threading;
using System.Configuration;

namespace BingSpeech
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        AutoResetEvent _FinalResponceEvent;
        MicrophoneRecognitionClient _microphoneRecognitionClient;
        public MainWindow()
        {
            InitializeComponent();
            RecordButton.Content = "Start\nRecording";
            _FinalResponceEvent = new AutoResetEvent(false);
            OutputTextbox.Background = Brushes.White;
            OutputTextbox.Foreground = Brushes.Black;
        }

        private void RecordButton_Click(object sender, RoutedEventArgs e)
        {
            RecordButton.Content = "Listening ...";
            RecordButton.IsEnabled = false;
            OutputTextbox.Background = Brushes.Green;
            OutputTextbox.Foreground = Brushes.White;
            ConvertSpeechToText();
        }

        private void ConvertSpeechToText()
        {
            var speechRecognitionMode = SpeechRecognitionMode.ShortPhrase;
            string language = "en-us";
            string subscriptionKey = ConfigurationManager.AppSettings["MicrosoftSpeechApiKey"].ToString();
            _microphoneRecognitionClient = SpeechRecognitionServiceFactory.CreateMicrophoneClient(
                speechRecognitionMode,
                language,
                subscriptionKey
                 );
            _microphoneRecognitionClient.OnPartialResponseReceived += OnPartialResponseReceivedHandler;
            _microphoneRecognitionClient.OnResponseReceived += OnMicShortPhraseResponceReceivedHandler;
            _microphoneRecognitionClient.StartMicAndRecognition();
        }

        private void OnPartialResponseReceivedHandler(object sender, PartialSpeechResponseEventArgs e)
        {
            string result = e.PartialResult;
            jarvis.SpeakAsync(e.PartialResult);
            Dispatcher.Invoke(() =>
            {
                OutputTextbox.Text = (e.PartialResult);
                OutputTextbox.Text += ("\n");

            });
        }
        private void OnMicShortPhraseResponceReceivedHandler(object sender, SpeechResponseEventArgs e)
        {
            Dispatcher.Invoke((Action)(() =>
            {
                _FinalResponceEvent.Set();
                _microphoneRecognitionClient.EndMicAndRecognition();
                _microphoneRecognitionClient.Dispose();
                _microphoneRecognitionClient = null;
                RecordButton.Content = "Start\nRecording";
                RecordButton.IsEnabled = true;
                OutputTextbox.Background = Brushes.White;
                OutputTextbox.Foreground = Brushes.Black;
            }));
        }
    }
}