Cannot hear audio from ASP.NET "Text to Speech" Application

Question

in my asp.net project, I code below for a text to speech function. in my page's c# file.

 byte[] SpeakText(string text) 
        { 
            using (SpeechSynthesizer s = new SpeechSynthesizer()) 
            { 
                using (MemoryStream ms = new MemoryStream()) 
                { 
                    s.SetOutputToWaveStream(ms); 
                    s.Speak(text); 
                    return ms.GetBuffer(); 
                } 
            } 
        }
protected void Button1_Click(object sender, EventArgs e)
        {


            if (TextBox1.Text != "")
            {
                Response.Write(SpeakText(TextBox1.Text));

            }

        }

but not hear the audio while run it.

How to solve the problem?

What happens while running the debugger? Have you set any breakpoints in the `SpeakText()` method? — Tieson T., Dec 05 '11 at 08:54
In your code you are just returning the Converted Wave format of the text given, but where you are playing the text?? — Sai Kalyan Kumar Akshinthala, Dec 05 '11 at 08:57
You're doing Response.Write(SpeakText(TextBox1.Text)); - so your wave output goes to (HTTP) client. How is this data processed on client side? — Sergey Kudriavtsev, Dec 05 '11 at 08:58

score 2 · Accepted Answer · answered Dec 05 '11 at 08:30

2

Try setting the response content type:

Response.ContentType = "audio/wav";

Also don't use Response.Write as it expects encoded characters. You need to write binary to avoid getting corrupt data:

Response.Clear();
Response.ContentType = "audio/wav";
Response.BinaryWrite(SpeakText(TextBox1.Text));
Response.End();

answered Dec 05 '11 at 08:30

Darin Dimitrov

1,023,142
271
3,287
2,928

1

And add a `Response.End()` to skip adding html to that sound. – Hans Keﬆing Dec 05 '11 at 08:33
I have try but could hear the sound at the page. now my code is below: ' byte[] SpeakText(string text) { using (SpeechSynthesizer s = new SpeechSynthesizer()) { using (MemoryStream ms = new MemoryStream()) { s.SetOutputToWaveStream(ms); s.Speak(text); return ms.GetBuffer(); } } }' – bill qu Dec 06 '11 at 07:12

score 0 · Answer 2 · edited May 23 '17 at 10:08

0

your code is executing on the server, not on the client machine.

Once you have generated the Speech output you should stream it down to the client (as a wav file for example), check this answer for a full example:

https://stackoverflow.com/a/1719867/559144

edited May 23 '17 at 10:08

Community

1
1

answered Dec 05 '11 at 08:30

Davide Piras

43,984
10
98
147

I have view the http://stackoverflow.com/a/1719867/559144 how to call ProcessRequest(HttpContext context) how to set value for context at asp.net button click function. – bill qu Dec 06 '11 at 07:14

Cannot hear audio from ASP.NET "Text to Speech" Application

2 Answers2