;; (dgeom length start grow)

;; demand rate geometric series ugen.

;; start   - start value
;; grow    - value by which to grow ( x = x[-1] * grow )
;; length  - number of values to create

;; The arguments can be a number or any other ugen

(let* ((a (dgeom 15 1 1.2))
       (t (impulse kr (mouse-x kr 1 40 1 0.1) 0))
       (f (mul-add (demand t 0 a) 30 340)))
  (audition (out 0 (mul (sin-osc ar f 0) 0.1))))

;; demand rate UGens are not shared...

(let* ((a  (dgeom 15 1 1.2))
       (t  (impulse ar (mouse-x kr 1 40 1 0.1) 0))
       (f0 (mul-add (demand (delay1 t) 0 a) 30 340))
       (f1 (mul-add (demand t 0 a) 30 340)))
  (audition (out 0 (mul (sin-osc ar (mce2 f0 f1) 0) 0.1))))

(let* ((a0 (dgeom 15 1 1.2))
       (a1 (dgeom 15 1 1.2))
       (t  (impulse ar (mouse-x kr 1 40 1 0.1) 0))
       (f0 (mul-add (demand (delay1 t) 0 a0) 30 340))
       (f1 (mul-add (demand t 0 a1) 30 340)))
  (audition (out 0 (mul (sin-osc ar (mce2 f0 f1) 0) 0.1))))