quantize.alg

Audacity是一款用於錄音和編輯聲音的、免費的開放源碼軟體。它可以執行於Mac OS X、Microsoft Windows、GNU/Linux和其它作業系統

(QUANTIZE-ALG
  (NAME "quantize")
  (ARGUMENTS ("sound_type" "s1") ("long" "steps"))
  (INTERNAL-SCALING s1)
  (START (MIN s1))
  (STATE ("double" "factor" "s1->scale * steps; scale_factor = (sample_type) (1.0 / steps);"))
  (INNER-LOOP "register long xx = (long) (s1 * factor); output = (float) xx;")
  (TERMINATE (MIN s1))
  (CONSTANT "factor")
  (LOGICAL-STOP (MIN s1))
)