- 1 year ago
Using Microsoft SAPI Text To Speech with SSML
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To use Microsoft Speech API (SAPI) with Speech Synthesis Markup Language (SSML) for text-to-speech functionality in Windows, you can follow these steps:
Set up a C# project:
- Create a new C# project in your preferred development environment (e.g., Visual Studio).
- Ensure that you have the necessary references to use the
System.Speech
namespace for SAPI functionality.
Write code to generate and speak SSML:
- Use the
SpeechSynthesizer
class from theSystem.Speech.Synthesis
namespace to generate and speak SSML. - Initialize an instance of
SpeechSynthesizer
. - Create an SSML string with the desired text, speech rate, pitch, volume, pauses, etc.
- Use the
SpeakSsml
method ofSpeechSynthesizer
to speak the SSML. - Here's an example:
- Use the
csharpusing System.Speech.Synthesis;
class Program
{
static void Main()
{
// Initialize SpeechSynthesizer
using (SpeechSynthesizer synthesizer = new SpeechSynthesizer())
{
// Construct SSML
string ssml = "<speak version='1.0' xmlns='http://www.w3.org/2001/10/synthesis' xml:lang='en-US'>"
+ "<voice name='Microsoft Zira Desktop'>"
+ "<prosody rate='-10%'>Hello, this is an example of SSML speech.</prosody>"
+ "</voice>"
+ "</speak>";
// Speak the SSML
synthesizer.SpeakSsml(ssml);
}
}
}
In the above code, an instance of SpeechSynthesizer
is created, and an SSML string is constructed with the desired speech content, rate, and voice. The SpeakSsml
method is then called to have the synthesizer speak the SSML.
Customize SSML as needed:
- You can include various SSML elements and attributes to customize the speech output, such as emphasis, prosody, breaks, phoneme pronunciation, etc.
- Refer to the Microsoft SAPI documentation for details on SSML syntax and available elements.
Run the application:
- Compile and run the application to test the SSML speech synthesis.
By following these steps, you can utilize Microsoft SAPI with SSML to generate more complex and customized text-to-speech output in your C# application.