Begins speaking synthesized text through the system’s default sound output device.
Original signature is '- (BOOL)startSpeakingString:(NSString *)text'
Available in Mac OS X v10.3 and later.


- text (NSString)
- Text to speak. When nil or empty, no synthesis occurs.

YES when speaking starts successfully, NO otherwise.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)