SpeechUI 类

定义

public ref class SpeechUI

public class SpeechUI

type SpeechUI = class

Public Class SpeechUI

继承

Object

SpeechUI

示例

下面的示例是事件的 SpeechRecognized 处理程序。 此事件由设计为以“我的密码为...”格式处理密码输入的项 Grammar 使用。

如果密码不存在或无效， SendTextFeedback 则向语音平台用户界面发送错误信息。

grammar.SpeechRecognized +=
delegate(object sender, SpeechRecognizedEventArgs eventArgs)
{
  SemanticValue semantics = eventArgs.Result.Semantics;
  RecognitionResult result=eventArgs.Result;

  if (!semantics.ContainsKey("Password"))
  {
    SpeechUI.SendTextFeedback(eventArgs.Result, "No Password Provided", false);
  }
  else
  {
    RecognizedAudio pwdAudio = result.GetAudioForWordRange(
                  result.Words[3],
                  result.Words[result.Words.Count - 1]);
    MemoryStream pwdMemoryStream = new MemoryStream();
    pwdAudio.WriteToAudioStream(pwdMemoryStream);
    if (!IsValidPwd(pwdMemoryStream))
    {
      string badPwd = System.IO.Path.GetTempPath() +
              "BadPwd" + (new Random()).Next().ToString() + ".wav";
      FileStream waveStream = new FileStream(badPwd, FileMode.Create);
      pwdAudio.WriteToWaveStream(waveStream);
      waveStream.Flush();
      waveStream.Close();
      SpeechUI.SendTextFeedback(eventArgs.Result, "Invalid Password", false);
    }
  }
};

注解

该类的成员 SpeechUI 可用于通过语音识别用户界面向最终用户指示确切的反馈。 应用程序可以使用此类返回任意文本和成功/失败信息。