C#通过添加System.Speech库引用实现Winform窗体报警语音播报
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admin
2025年6月23日 23:39
本文热度 1474
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我们在开发C#程序时，有时候会需要将报警信息通过语音进行播报，今天跟大家分享一下具体的实现过程。
首先我们创建好一个Windows窗体项目，然后添加System.Speech库引用。
点击引用，右击添加引用，在程序集中，找到System.Speech，这个库是Windows系统自带的，所以直接点击确定即可。
接下来我们对System.Speech这个库进行封装，核心围绕SpeechSynthesizer这个类。1、创建一个SpeechHelper类，初始化SpeechSynthesizer对象。 private SpeechSynthesizer synthesizer; public int Rate; public int Volume; public SpeechHelper() { synthesizer = new SpeechSynthesizer(); synthesizer.SpeakStarted += Synthesizer_SpeakStarted; synthesizer.SpeakCompleted += Synthesizer_SpeakCompleted; synthesizer.Volume = 100; synthesizer.Rate = 0; }
public bool IsSpeeking { get; set; } = false; private void Synthesizer_SpeakStarted(object sender, SpeakStartedEventArgs e) { IsSpeeking = true; } private void Synthesizer_SpeakCompleted(object sender, SpeakCompletedEventArgs e) { IsSpeeking = false; }
3、开始播报和停止播报方法，这里建议使用异步SpeekAsync。public void Speak(string text){ if (!string.IsNullOrWhiteSpace(text)) { synthesizer.SpeakAsync(text); }}public void Stop(){ synthesizer.SpeakAsyncCancelAll();}
public void SetVolume(int volume) { if (volume >= 0 && volume <= 100) { synthesizer.Volume = volume; Volume = volume; } } public void SetRate(int rate) { if (rate >= -10 && rate <= 10) { synthesizer.Rate = rate; Rate = rate; } }
public void SelectVoice(string voiceName) { try { synthesizer.SelectVoice(voiceName); } catch (Exception ex) { throw new Exception("无法选择语音 " + voiceName + ": " + ex.Message); } } public string[] GetInstalledVoices() { List<string> list = new List<string>(); foreach (InstalledVoice installedVoice in synthesizer.GetInstalledVoices()) { list.Add(installedVoice.VoiceInfo.Name); } return list.ToArray(); }
1、我们先创建一个简单的窗体：
2、核心代码就是创建SpeechHelper对象，调用Speek进行播报，调用Stop停止播报：
private SpeechHelper speechHelper = new SpeechHelper(); private void btn_Start_Click(object sender, EventArgs e) { if (!this.speechHelper.IsSpeeking) { this.speechHelper.Speak(this.txt_Content.Text); } } private void btn_Stop_Click(object sender, EventArgs e) { this.speechHelper.Stop(); }
3、然后可以选择朗读者或者调节音量和语速：
private void FrmMain_Load(object sender, EventArgs e){ this.cmb_Voice.Items.AddRange(speechHelper.GetInstalledVoices());}private void cmb_Voice_SelectedIndexChanged(object sender, EventArgs e){ this.speechHelper.SelectVoice(this.cmb_Voice.Text);}private void track_Volumn_Scroll(object sender, EventArgs e){ this.speechHelper.SetVolume(this.track_Volumn.Value);}private void track_Rate_Scroll(object sender, EventArgs e){ this.speechHelper.SetRate(this.track_Rate.Value);}
4、运行程序，结果如下所示：
选择朗读者，输入播报内容，点击开始播报即可。
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该文章在 2025/6/24 10:47:21 编辑过
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