synthesizer-0.0.3: Audio signal processing coded in Haskell Source code Contents Index

Synthesizer.Dimensional.Rate.Filter Portability requires multi-parameter type classes Stability provisional Maintainer synthesizer@henning-thielemann.de

Contents Non-recursive Amplification Smooth Delay Recursive Without resonance With resonance Allpass Reverb Helper functions

Description

Synopsis

negate :: (C sig, C yv, C u) => T s u t (T s sig yv -> T s sig yv) envelope :: (C sig, C flat y0, C y0, C u) => T s u t (T s flat y0 -> T s sig y0 -> T s sig y0) envelopeVector :: (C sig, C flat y0, C y0 yv, C u) => T s u t (T s flat y0 -> T s sig yv -> T s sig yv) convolveVector :: (C sig, C q yv, C q, C u, C q) => T s u q (R s (Recip u) q q -> T s sig yv -> T s sig yv) mean :: (C sig, C yv, C q, C q yv, C u, C q, C yv) => T (Recip u) q -> T s u q (R s (Recip u) q q -> T s sig yv -> T s sig yv) meanStatic :: (C sig, C yv, C q, C q yv, C u) => T (Recip u) q -> T s u q (T s sig yv -> T s sig yv) delay :: (C sig, C yv, C t, C u) => T u t -> T s u t (T s sig yv -> T s sig yv) phaseModulation :: (C sig, C yv, C q, C u, C q, C yv) => T q yv -> T u q -> T u q -> T s u q (R s u q q -> T s sig yv -> T s sig yv) phaser :: (C sig, C yv, C q, C q yv, C u, C q, C yv) => T q yv -> T u q -> T s u q (R s u q q -> T s sig yv -> T s sig yv) phaserStereo :: (C sig, C yv, C q, C q yv, C u, C q, C yv) => T q yv -> T u q -> T s u q (R s u q q -> T s sig yv -> T s sig (T yv)) frequencyModulation :: (C sig, C flat q, C yv, C q, C u) => T q yv -> T s u q (T s flat q -> T s sig yv -> T s sig yv) frequencyModulationDecoupled :: (C yv, C q, C u) => T q yv -> T s u q (R s q -> T u q (T T) yv -> R s yv) firstOrderHighpass :: (C sig, C q, C q yv, C u) => T s u q (R s (Recip u) q q -> T s sig yv -> T s sig yv) butterworthHighpass :: (C sig, C q, C q yv, C u) => Int -> q -> T s u q (R s (Recip u) q q -> T s sig yv -> T s sig yv) universal :: (C sig, C flat q, C q, C q yv, C u) => T s u q (T s flat q -> R s (Recip u) q q -> T s sig yv -> T s sig (Result yv)) bandpassFromUniversal :: (C sig, C u) => T s u q (T s sig (Result yv) -> T s sig yv) moogLowpass :: (C sig, C flat q, C q, C q yv, C u) => Int -> T s u q (T s flat q -> R s (Recip u) q q -> T s sig yv -> T s sig yv) allpassCascade :: (C sig, C q, C q yv, C u) => Int -> q -> T s u q (R s (Recip u) q q -> T s sig yv -> T s sig yv) comb :: (C sig, C t, C y yv, C u, C yv) => T u t -> y -> T s u t (T s sig yv -> T s sig yv) interpolateMultiRelativeZeroPad :: (C q, C yv) => T q yv -> T q -> T yv -> T yv

Non-recursive

Amplification

negate :: (C sig, C yv, C u) => T s u t (T s sig yv -> T s sig yv) Source

envelope :: (C sig, C flat y0, C y0, C u) => T s u t (T s flat y0 -> T s sig y0 -> T s sig y0) Source

envelopeVector :: (C sig, C flat y0, C y0 yv, C u) => T s u t (T s flat y0 -> T s sig yv -> T s sig yv) Source

convolveVector :: (C sig, C q yv, C q, C u, C q) => T s u q (R s (Recip u) q q -> T s sig yv -> T s sig yv) Source

Smooth

mean Source

:: (C sig, C yv, C q, C q yv, C u, C q, C yv) => T (Recip u) q minimum cut-off freqeuncy -> T s u q (R s (Recip u) q q -> T s sig yv -> T s sig yv)

meanStatic Source

:: (C sig, C yv, C q, C q yv, C u) => T (Recip u) q cut-off freqeuncy -> T s u q (T s sig yv -> T s sig yv)

Delay

delay :: (C sig, C yv, C t, C u) => T u t -> T s u t (T s sig yv -> T s sig yv) Source

phaseModulation Source

:: (C sig, C yv, C q, C u, C q, C yv) => T q yv -> T u q minimal deviation from current time, usually negative -> T u q maximal deviation, it must be minDev <= maxDev and the modulation must always be in the range [minDev,maxDev]. -> T s u q (R s u q q -> T s sig yv -> T s sig yv)

phaser Source

:: (C sig, C yv, C q, C q yv, C u, C q, C yv) => T q yv -> T u q maxDev, must be positive -> T s u q (R s u q q -> T s sig yv -> T s sig yv)

phaserStereo Source

:: (C sig, C yv, C q, C q yv, C u, C q, C yv) => T q yv -> T u q maxDev, must be positive -> T s u q (R s u q q -> T s sig yv -> T s sig (T yv))

frequencyModulation :: (C sig, C flat q, C yv, C q, C u) => T q yv -> T s u q (T s flat q -> T s sig yv -> T s sig yv) Source

frequencyModulationDecoupled :: (C yv, C q, C u) => T q yv -> T s u q (R s q -> T u q (T T) yv -> R s yv) Source

Recursive

Without resonance

firstOrderHighpass :: (C sig, C q, C q yv, C u) => T s u q (R s (Recip u) q q -> T s sig yv -> T s sig yv) Source

butterworthHighpass Source

:: (C sig, C q, C q yv, C u) => Int Order of the filter, must be even, the higher the order, the sharper is the separation of frequencies. -> q The attenuation at the cut-off frequency. Should be between 0 and 1. -> T s u q (R s (Recip u) q q -> T s sig yv -> T s sig yv)

With resonance

universal Source

:: (C sig, C flat q, C q, C q yv, C u) => T s u q (T s flat q -> R s (Recip u) q q -> T s sig yv -> T s sig (Result yv)) highpass, bandpass, lowpass filter

bandpassFromUniversal :: (C sig, C u) => T s u q (T s sig (Result yv) -> T s sig yv) Source

moogLowpass :: (C sig, C flat q, C q, C q yv, C u) => Int -> T s u q (T s flat q -> R s (Recip u) q q -> T s sig yv -> T s sig yv) Source

Allpass

allpassCascade Source

:: (C sig, C q, C q yv, C u) => Int order, number of filters in the cascade -> q the phase shift to be achieved for the given frequency -> T s u q (R s (Recip u) q q -> T s sig yv -> T s sig yv)

Reverb

comb :: (C sig, C t, C y yv, C u, C yv) => T u t -> y -> T s u t (T s sig yv -> T s sig yv) Source

Helper functions

interpolateMultiRelativeZeroPad :: (C q, C yv) => T q yv -> T q -> T yv -> T yv Source

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