#lang scribble/manual @(require (for-label racket)) @title{sample-dur} Duration of one sample. Equivalent to 1 / sample-rate. Compare a sine tone derived from sample rate with a 440Hz tone. @racketblock[ (let ((freq (mce2 (mul (recip sample-dur) 0.01) 440))) (audition (out 0 (mul (sin-osc ar freq 0) 0.1)))) ]