Portability | portable |
---|---|
Stability | provisional |
Maintainer | synthesizer@henning-thielemann.de |
- type T a = [a]
- type Modifier s ctrl a b = Simple s ctrl a b
- modifyStatic :: Modifier s ctrl a b -> ctrl -> T a -> T b
- modifyModulated :: Modifier s ctrl a b -> T ctrl -> T a -> T b
- type ModifierInit s init ctrl a b = Initialized s init ctrl a b
- modifierInitialize :: ModifierInit s init ctrl a b -> init -> Modifier s ctrl a b
- modifyStaticInit :: ModifierInit s init ctrl a b -> init -> ctrl -> T a -> T b
- modifyModulatedInit :: ModifierInit s init ctrl a b -> init -> T ctrl -> T a -> T b
- unfoldR :: (acc -> Maybe (y, acc)) -> acc -> (acc, T y)
- reduceL :: (x -> acc -> Maybe acc) -> acc -> T x -> acc
- mapAccumL :: (x -> acc -> Maybe (y, acc)) -> acc -> T x -> (acc, T y)
- crochetL :: (x -> acc -> Maybe (y, acc)) -> acc -> T x -> T y
- fix1 :: y -> (T y -> T y) -> T y
- dropMarginRem :: Int -> Int -> T a -> (Int, T a)
- dropMargin :: Int -> Int -> T a -> T a
- lengthAtLeast :: Int -> T a -> Bool
- zipWithTails :: (y0 -> T y1 -> y2) -> T y0 -> T y1 -> T y2
- zipWithRest :: (y0 -> y0 -> y1) -> T y0 -> T y0 -> (T y1, (Bool, T y0))
- zipWithRest' :: (y0 -> y0 -> y1) -> T y0 -> T y0 -> (T y1, (Bool, T y0))
- zipWithAppend :: (y -> y -> y) -> T y -> T y -> T y
Documentation
Generic routines that are useful for filters
modifyStatic :: Modifier s ctrl a b -> ctrl -> T a -> T bSource
modif is a process controlled by values of type c with an internal state of type s, it converts an input value of type a into an output value of type b while turning into a new state
ToDo: Shall finite signals be padded with zeros?
modifyModulated :: Modifier s ctrl a b -> T ctrl -> T a -> T bSource
Here the control may vary over the time.
type ModifierInit s init ctrl a b = Initialized s init ctrl a bSource
modifierInitialize :: ModifierInit s init ctrl a b -> init -> Modifier s ctrl a bSource
modifyStaticInit :: ModifierInit s init ctrl a b -> init -> ctrl -> T a -> T bSource
modifyModulatedInit :: ModifierInit s init ctrl a b -> init -> T ctrl -> T a -> T bSource
Here the control may vary over the time.
fix1 :: y -> (T y -> T y) -> T ySource
Feed back signal into signal processor,
and apply a delay by one value.
fix1
is a kind of Signal.generate
.
dropMarginRem :: Int -> Int -> T a -> (Int, T a)Source
dropMarginRem n m xs
drops at most the first m
elements of xs
and ensures that xs
still contains n
elements.
Additionally returns the number of elements that could not be dropped
due to the margin constraint.
That is dropMarginRem n m xs == (k,ys)
implies length xs - m == length ys - k
.
Requires length xs >= n
.
lengthAtLeast :: Int -> T a -> BoolSource
Test whether a list has at least n
elements.
zipWithAppend :: (y -> y -> y) -> T y -> T y -> T ySource