Module Svf

type model =
  1. | Chamberlin
  2. | Zero_delay
type mode =
  1. | Low_pass
  2. | Band_pass
  3. | High_pass
  4. | Notch
val modes : mode list
type t
val create : unit -> t
val process : t -> model -> mode -> cutoff:Signal.t -> q:float -> Signal.t -> unit