C# 语音开发示例

            PromptBuilder prompt = new PromptBuilder();
            prompt.AppendText("How are you");
            prompt.AppendBreak(TimeSpan.FromSeconds(2));

            prompt.AppendText("How ", PromptEmphasis.Reduced);   

            PromptStyle style = new PromptStyle();
            style.Rate = PromptRate.ExtraSlow;  //语速控制
            style.Emphasis = PromptEmphasis.Strong;  //强调
            prompt.StartStyle(style);
            prompt.AppendText("are ");
            prompt.EndStyle();
            prompt.AppendText("you?");
            SpeechSynthesizer synthesizer = new SpeechSynthesizer();
            synthesizer.Speak(prompt);