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TextToSpeechSetRate

The TextToSpeechSetRate call sets the text-to-speech speaking rate.

Syntax
MMRESULT TextToSpeechSetRate
(LPTTS_HANDLE_T phTTS,
DWORD dwRate)
Parameters
LPTTS_HANDLE_T phTTS
Specifies a text-to-speech handle.

DWORD dwRate
Sets the speaking rate. Valid values range from 75 to 600 words per minute.
Return Value
This call returns a value of type MMRESULT. The return value is zero if the call is successful. The return value is one of the following constants:
Constant
Description
MMSYSERR_NOERROR
Normal successful completion (zero).
MMSYSERR_INVALPARAM
An invalid parameter was passed.
MMSYSERR_INVALHANDLE
The text-to-speech handle was invalid.


Comments
The speaking rate change is not effective until the next phrase boundary. All the queued audio encountered before the phrase boundary is unaffected
See Also
TextToSpeechGetRate