Azimuth is inherited. In addition to specifiying a keyword, behind may be specified. Elevation This is inherited, and takes an angle between -90 and 90deg. Note that, as with font names, voices that include white space must be in quotes. The average male frequency is 120Hz, and 210Hz for females.
Pitch is inherited.
This indicates the inflection. Valid values are any number between 0 and 100, where 0 is monotonic and 50 is normal. Pitch-range is inherited. This indicates the amount of stress given to stressed parts of sentences. Valid values are numbers between 0 and 100, where 50 is the initial value.