Inside Macintosh: Sound /

Chapter 4 - Speech Manager / Speech Manager Reference

Speech Manager Routines / Changing Speech Attributes

GetSpeechRate

You use the GetSpeechRate function to obtain a speech channel's current speech rate.

FUNCTION GetSpeechRate (chan: SpeechChannel; VAR rate: Fixed)
                        : OSErr;

chan

The speech channel whose rate you wish to determine.

rate

On exit, the speech channel's speech rate, expressed as a fixed-point, words-per-minute value.

DESCRIPTION

The GetSpeechRate function returns, in the rate parameter, the speech rate of the speech channel specified by the chan parameter.

SPECIAL CONSIDERATIONS

You can call the GetSpeechRate function at interrupt time.

ASSEMBLY-LANGUAGE INFORMATION

The trap macro and routine selector for the GetSpeechRate function are

Trap macro	Selector
_SoundDispatch	$0448000C

RESULT CODES

noErr	0	No error
invalidComponentID	-3000	Speech channel is uninitialized or bad