speechsynthesizer

I would like to be able to generate speech in my ASP.NET app by calling speak.aspx?text=Hello%20world . This would give a response in .wav format. So far I have a blank page with code behind: protected void Page_PreRender(object sender, EventArgs e) { using (var ss = new SpeechSynthesizer()) { MemoryStream str = new MemoryStream(); ss.SetOutputToWaveStream(str); ss.Speak(Server.UrlDecode(Request.QueryString["text"])); Response.AddHeader("Content-Type", "audio/wav"); str.WriteTo(Response.OutputStream); str.Close(); } } However this fails with message: InvalidOperationException : Asynchronous

Is there any Japanese voice for C#'s SpeechSynthesizer TTS? If so please state detailed information about it, better if documentation provided. Thanks in advance. Microsoft's Agent had a set of free voices including Japanese based on the L&H TTS3000 engine. The engines were SAPI 4 compatible. Unfortunately the Microsoft Agent site seems to be unavailable at the moment Microsoft has a list of third-party TTS engines here . In particular, NeoSpeech has a Japanese TTS engine. Also, apparently Japanese MS Office 2003 ships with a Japanese TTS engine , but I don't have first-hand knowledge of this.

This question is essentially about the suitability of Microsoft's Speech API (SAPI) for server workloads and whether it can be used reliably inside of w3wp for speech synthesis. We have an asynchronous controller that uses uses the native System.Speech assembly in .NET 4 (not the Microsoft.Speech one that ships as part of Microsoft Speech Platform - Runtime Version 11) and lame.exe to generate mp3s as follows: [CacheFilter] public void ListenAsync(string url) { string fileName = string.Format(@"C:\test\{0}.wav", Guid.NewGuid()); try { var t = new System.Threading.Thread(() => { using

Using the System.Speech.Synthesis.SpeechSynthesizer class in .Net 3.5, the AudioPosition property of the SpeakProgressEventArgs appears to be inaccurate. The following code produces the following output: Code: using System; using System.Speech.Synthesis; using System.Threading; namespace SpeechTest { class Program { static ManualResetEvent speechDoneEvent = new ManualResetEvent(false); static void Main(string[] args) { SpeechSynthesizer synthesizer = new SpeechSynthesizer(); synthesizer.SpeakProgress += new EventHandler<SpeakProgressEventArgs>(synthesizer_SpeakProgress); synthesizer

I am modifying Scott Hanselman 's BabySmash code to support other languages. I installed the speech platform and a new language per these steps . The language now shows up in the registry: The language can now be selected and played by Windows: System.Speech.Synthesis.SpeechSynthesizer.GetInstalledVoices() now returns the voice. However SelectVoice() in the code below throws the error "System.ArgumentException: Cannot set voice. No matching voice is installed or the voice was disabled." string phrase = null; SpeechSynthesizer speech = new SpeechSynthesizer(); CultureInfo keyboardCulture =