(PROD-ALG
  (NAME "prod")
  (ARGUMENTS ("sound_type" "s1") ("sound_type" "s2"))
  (START (MAX s1 s2))
  (COMMUTATIVE (s1 s2))
  (INNER-LOOP "output = s1 * s2")
  (LINEAR s1 s2)
  (TERMINATE (MIN s1 s2))
  (LOGICAL-STOP (MIN s1 s2))
)