我正在尝试实现文本转语音以按顺序读取列表框中的项目。最初,程序会同时读出所有彼此重叠的项目。经过研究,我添加了一个 MediaEnded 处理程序,但我只能在实现此处理程序的情况下读出第一个项目。我将不胜感激任何帮助。
private async void ToSpeechButton_Click(object sender, RoutedEventArgs e)
{
MediaElement mediaElement = new MediaElement();
var tsc = new TaskCompletionSource<bool>();
mediaElement.MediaEnded += (o, f) => { tsc.TrySetResult(true); };
mediaElement.Play();
foreach (var item in ListBox.Items)
{
readText(item.ToString());
await tsc.Task;
}
}
private async void readText(string mytext)
{
MediaElement mediaplayer = new MediaElement();
using (var speech = new SpeechSynthesizer())
{
speech.Voice = SpeechSynthesizer.AllVoices.First(gender => gender.Gender == VoiceGender.Female);
SpeechSynthesisStream stream = await speech.SynthesizeTextToStreamAsync(mytext);
mediaplayer.SetSource(stream, stream.ContentType);
mediaplayer.Play();
}
}
最佳答案
如果您阅读了SpeechSynthesizer class的文档,您会发现有两种将文本转换为语音的方法。一个是你用过的,SynthesizeTextToStreamAsync method ,此方法从字符串异步生成语音输出。
另一个是SynthesizeSsmlToStreamAsync method ,并且此方法从包含 Speech Synthesis Markup Language (SSML) 的字符串异步生成语音输出。 .
在这种情况下,我们可以使用 SynthesizeSsmlToStreamAsync
方法在每个项目之间暂停语音,例如如下所示:
private string allitem;
private void ToSpeechButton_Click(object sender, RoutedEventArgs e)
{
foreach (var item in listBox.Items)
{
var txt = item as ListBoxItem;
allitem += txt.Content.ToString() + "<break time='500ms'/>";
}
readText(allitem);
}
private async void readText(string mytext)
{
MediaElement mediaplayer = new MediaElement();
using (var speech = new SpeechSynthesizer())
{
speech.Voice = SpeechSynthesizer.AllVoices.First(gender => gender.Gender == VoiceGender.Female);
string ssml = @"<speak version='1.0' " + "xmlns='http://www.w3.org/2001/10/synthesis' xml:lang='en-US'>" + allitem + "</speak>";
SpeechSynthesisStream stream = await speech.SynthesizeSsmlToStreamAsync(ssml);
mediaplayer.SetSource(stream, stream.ContentType);
mediaplayer.Play();
}
}
合并此<break time='500ms'/>
每一项后的字符串,每项后语音将暂停 500 毫秒。
关于c# - UWP 列表框中的文本到语音 (c#'),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/35463566/