- set-parameter! parameter value #!optional relativeprocedure
Set the value of a parameter, which can be any of:
- param/rate
- speaking speed in words per minute, 80 - 450. Defaults to 175.
- param/volume
- volume, 0 or more. Defaults to 100. Values greater than that may produce amplitude compression or distortion.
- param/pitch
- base pitch, 0-100. Defaults to 50.
- param/range
- pitch range, 0-100. Defaults to 50.
- param/punctuation
- which punctuation characters to announce: punct/none, punct/some, or punct/all.
- param/captials
- announce capital letters by: capitals/none, capitals/sound-icon, capitals/spelling, 3+ by raising pitch, where the value corresponds to the amount in Hz by which the pitch is raised.
- param/wordgap
- pause between words in units of 10mS at the default speed.