我正在做一个文本到语音的演示，其中我正在使用语音合成器。我的问题是当我单击播放按钮时，页面正在连续加载。即使演讲结束，它也不会停止。同样在我的演示中，暂停和恢复不起作用。
我也尝试使用 spVoice 界面进行文本到语音，但在这个演示中，暂停和恢复也不起作用。
使用语音合成器的演示 -
SpeechSynthesizer spRead;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
// Creating new object of SpeechSynthesizer.
spRead = new SpeechSynthesizer();
}
} // Page_Load
protected void btnPlay_Click(object sender, EventArgs e)
{
// Get the content data as per the content id
_contentData = new ContentFormData(ContentManager.GetContentData(Page.Database, ContentId, Page.IsLive));
// Get the text after trim
_speechText = WebUtility.HtmlDecode(_contentData.Content.Text1.Trim());
// If Speech Text is not null
// then check the button class, if cssclass is play change it to pause
and call speak method.
if (_speechText != null && !string.IsNullOrEmpty(_speechText))
{
// if button is play buttton
// then call play method and speech the text
if (btnPlay.CssClass == "button-play")
{
btnPlay.CssClass = btnPlay.CssClass.Replace("button-play",
"button-pause");
// creating the object of SpeechSynthesizer class
spRead = new SpeechSynthesizer();
spRead.SpeakAsync(_speechText);
spRead.SpeakCompleted += new
EventHandler<SpeakCompletedEventArgs>(spRead_SpeakCompleted);
}
// If button class is pause
// then change it to continue and call pause method.
else if (btnPlay.CssClass == "button-pause")
{
btnPlay.CssClass = btnPlay.CssClass.Replace("button-pause",
"button-continue");
if (spRead != null)
{
// Check the state of spRead, and call pause method.
if (spRead.State == SynthesizerState.Speaking)
{
spRead.Pause();
}
}
btnPlayFromStart.Enabled = true;
}
// If button class is continue
// then change it to pause and call resume method.
else if (btnPlay.CssClass == "button-continue")
{
btnPlay.CssClass = btnPlay.CssClass.Replace("button-continue",
"button-pause");
if (spRead != null)
{
// Check the state of spRead, and call resume method.
if (spRead.State == SynthesizerState.Paused)
{
spRead.Resume();
}
}
btnPlayFromStart.Enabled = false;
}
}
}
private void spRead_SpeakCompleted(object sender, SpeakCompletedEventArgs e)
{
// If Spread is not null
// then dispose the spread after the speak is completed
// else do nothing
if (spRead != null)
{
spRead.Dispose();
}
else
{
// do nothing
}
} // spRead_SpeakCompleted
使用 SpVoice 演示 -
SpVoice voice;
protected void Page_Load(object sender, EventArgs e)
{
_contentData = new
ContentFormData(ContentManager.GetContentData(Page.Database, ContentId,
Page.IsLive));
_speechText = WebUtility.HtmlDecode(_contentData.Content.Text1.Trim());
} // Page_Load
protected void btnPlay_Click(object sender, EventArgs e)
{
voice = new SpVoice();
if (btnPlay.CssClass == "button-play")
{
voice.Speak(_speechText, SpeechVoiceSpeakFlags.SVSFlagsAsync);
btnPlay.CssClass = btnPlay.CssClass.Replace("button-play", "button-
pause");
}
else if (btnPlay.CssClass == "button-pause")
{
voice.Pause();
btnPlay.CssClass = btnPlay.CssClass.Replace("button-pause", "button-
continue");
}
else if (btnPlay.CssClass == "button-continue")
{
voice.Resume();
btnPlay.CssClass = btnPlay.CssClass.Replace("button-continue",
"button-play");
}
}