#lang scribble/manual @(require (for-label racket)) @title{(dseries length start step)} demand rate arithmetic series ugen. length - number of values to create start - start value step - step value The arguments can be a number or any other ugen @racketblock[ (let* ((a (dseries 15 0 1)) (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)))) ]