136. glottis

A glottal excitation signal, to be used with a vowel filter or vocal tract waveguide.

freq is the frequency of the signal, in Hz.

tenseness is a 0-1 value. Basically, 0 adds a lot of aspiration noise, 1 is all glottal sound. 0.7-0.9 is a good range.

<<ugens-top>>=

(define (glottis freq tenseness)
  (param freq)
  (param tenseness)
  (rvl "glottis"))