synthesizer-0.2: Audio signal processing coded in Haskell Source code Contents Index

Synthesizer.Plain.Filter.Recursive.FirstOrder Portability requires multi-parameter type classes Stability provisional Maintainer synthesizer@henning-thielemann.de

Description

First order low pass and high pass filter.

Synopsis

newtype Parameter a = Parameter { getParameter :: a } parameter :: C a => a -> Parameter a lowpassStep :: (C a, C a v) => Parameter a -> v -> State v v lowpassModifierInit :: (C a, C a v) => Initialized v v (Parameter a) v v lowpassModifier :: (C a, C a v) => Simple v (Parameter a) v v lowpassCausal :: (C a, C a v) => T (Parameter a, v) v lowpassInit :: (C a, C a v) => v -> T (Parameter a) -> T v -> T v lowpass :: (C a, C a v) => T (Parameter a) -> T v -> T v highpassStep :: (C a, C a v) => Parameter a -> v -> State v v highpassModifierInit :: (C a, C a v) => Initialized v v (Parameter a) v v highpassModifier :: (C a, C a v) => Simple v (Parameter a) v v highpassInit :: (C a, C a v) => v -> T (Parameter a) -> T v -> T v highpassInitAlt :: (C a, C a v) => v -> T (Parameter a) -> T v -> T v highpass :: (C a, C a v) => T (Parameter a) -> T v -> T v data Result a = Result { highpass_ :: !a lowpass_ :: !a } step :: (C a, C a v) => Parameter a -> v -> State v (Result v)

Documentation

newtype Parameter a Source

Constructors Parameter getParameter :: a Instances C a v => C a (Parameter v) Show a => Show (Parameter a)

parameter :: C a => a -> Parameter a Source

Convert cut-off frequency to feedback factor.

lowpassStep :: (C a, C a v) => Parameter a -> v -> State v v Source

lowpassModifierInit :: (C a, C a v) => Initialized v v (Parameter a) v v Source

lowpassModifier :: (C a, C a v) => Simple v (Parameter a) v v Source

lowpassCausal :: (C a, C a v) => T (Parameter a, v) v Source

lowpassInit :: (C a, C a v) => v -> T (Parameter a) -> T v -> T v Source

lowpass :: (C a, C a v) => T (Parameter a) -> T v -> T v Source

highpassStep :: (C a, C a v) => Parameter a -> v -> State v v Source

highpassModifierInit :: (C a, C a v) => Initialized v v (Parameter a) v v Source

highpassModifier :: (C a, C a v) => Simple v (Parameter a) v v Source

highpassInit :: (C a, C a v) => v -> T (Parameter a) -> T v -> T v Source

highpassInitAlt :: (C a, C a v) => v -> T (Parameter a) -> T v -> T v Source

highpass :: (C a, C a v) => T (Parameter a) -> T v -> T v Source

data Result a Source

Constructors Result highpass_ :: !a lowpass_ :: !a Instances C a v => C a (Result v) C v => C (Result v)

step :: (C a, C a v) => Parameter a -> v -> State v (Result v) Source

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