synthesizer-core-0.2: Audio signal processing coded in Haskell: Low level part Source code Contents Index

Synthesizer.Plain.Interpolation

Synopsis

data T t y func :: T t y -> t -> T y -> y offset :: T t y -> Int number :: T t y -> Int zeroPad :: C t => (T t y -> t -> T y -> a) -> y -> T t y -> t -> T y -> a constantPad :: C t => (T t y -> t -> T y -> a) -> T t y -> t -> T y -> a cyclicPad :: C t => (T t y -> t -> T y -> a) -> T t y -> t -> T y -> a extrapolationPad :: C t => (T t y -> t -> T y -> a) -> T t y -> t -> T y -> a single :: C t => T t y -> t -> T y -> y multiRelative :: C t => T t y -> t -> T y -> T t -> T y multiRelativeZeroPad :: C t => y -> T t y -> t -> T t -> T y -> T y multiRelativeConstantPad :: C t => T t y -> t -> T t -> T y -> T y multiRelativeCyclicPad :: C t => T t y -> t -> T t -> T y -> T y multiRelativeExtrapolationPad :: C t => T t y -> t -> T t -> T y -> T y multiRelativeZeroPadConstant :: (C t, C y) => t -> T t -> T y -> T y multiRelativeZeroPadLinear :: (C t, C t y) => t -> T t -> T y -> T y multiRelativeZeroPadCubic :: (C t, C t y) => t -> T t -> T y -> T y constant :: T t y linear :: C t y => T t y cubic :: (C t, C t y) => T t y piecewise :: C t y => Int -> [t -> t] -> T t y function :: C t y => (Int, Int) -> (t -> t) -> T t y data Margin margin :: T t y -> Margin singleRec :: (Ord t, C t) => T t y -> t -> T y -> y

Documentation

data T t y Source

interpolation as needed for resampling

func :: T t y -> t -> T y -> y Source

offset :: T t y -> Int Source

number :: T t y -> Int Source

zeroPad :: C t => (T t y -> t -> T y -> a) -> y -> T t y -> t -> T y -> a Source

constantPad :: C t => (T t y -> t -> T y -> a) -> T t y -> t -> T y -> a Source

cyclicPad :: C t => (T t y -> t -> T y -> a) -> T t y -> t -> T y -> a Source

Only for finite input signals.

extrapolationPad :: C t => (T t y -> t -> T y -> a) -> T t y -> t -> T y -> a Source

The extrapolation may miss some of the first and some of the last points

single :: C t => T t y -> t -> T y -> y Source

multiRelative :: C t => T t y -> t -> T y -> T t -> T y Source

All values of frequency control must be non-negative.

multiRelativeZeroPad :: C t => y -> T t y -> t -> T t -> T y -> T y Source

multiRelativeConstantPad :: C t => T t y -> t -> T t -> T y -> T y Source

multiRelativeCyclicPad :: C t => T t y -> t -> T t -> T y -> T y Source

multiRelativeExtrapolationPad :: C t => T t y -> t -> T t -> T y -> T y Source

The extrapolation may miss some of the first and some of the last points

multiRelativeZeroPadConstant :: (C t, C y) => t -> T t -> T y -> T y Source

multiRelativeZeroPadLinear :: (C t, C t y) => t -> T t -> T y -> T y Source

multiRelativeZeroPadCubic :: (C t, C t y) => t -> T t -> T y -> T y Source

constant :: T t y Source

Consider the signal to be piecewise constant.

linear :: C t y => T t y Source

Consider the signal to be piecewise linear.

cubic :: (C t, C t y) => T t y Source

Consider the signal to be piecewise cubic, with smooth connections at the nodes. It uses a cubic curve which has node values x0 at 0 and x1 at 1 and derivatives (x1-xm1)2 and (x2-x0)2, respectively. You can see how it works if you evaluate the expression for t=0 and t=1 as well as the derivative at these points.

piecewise :: C t y => Int -> [t -> t] -> T t y Source

function Source

:: C t y => (Int, Int) (left extent, right extent), e.g. (1,1) for linear hat -> t -> t -> T t y with this wrapper you can use the collection of interpolating functions from Donadio's DSP library

data Margin Source

Instances Eq Margin Show Margin

margin :: T t y -> Margin Source

singleRec :: (Ord t, C t) => T t y -> t -> T y -> y Source

alternative implementation of single

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