| Safe Haskell | Safe-Inferred |
|---|---|
| Language | Haskell98 |
Sound.SC3.Lang.Math
Contents
Description
sclang math functions.
- ampdb :: Floating a => a -> a
- dbamp :: Floating a => a -> a
- degreeToKey :: RealFrac a => [a] -> a -> a -> a
- inf :: Bounded a => a
- isInf :: (Eq a, Bounded a) => a -> Bool
- linexp :: (Ord a, Floating a) => a -> a -> a -> a -> a -> a
- log10 :: Floating a => a -> a
- octpc_to_midi :: Num a => (a, a) -> a
- midicps :: Floating a => a -> a
- octpc_to_cps :: Floating a => (a, a) -> a
- degree_to_cps :: (Floating a, RealFrac a) => [a] -> a -> a -> a -> a
- degree_to_cps' :: (Floating a, RealFrac a) => [a] -> a -> [a] -> [a] -> [a]
- exprange :: Floating b => b -> b -> b -> b
- bitChar :: Char -> Bool
- parseBits :: (Num a, Bits a) => String -> a
SimpleNumber
ampdb :: Floating a => a -> a Source
SimpleNumber.ampdb converts linear amplitude to decibels.
> [1,0.5,0.25,0.13,6e-2].collect({|i| i.ampdb.round}) == [0,-6,-12,-18,-24]
map (round . ampdb) [1,0.5,0.25,0.13,6e-2] == [0,-6,-12,-18,-24]> [1,0.7,0.5,0.35,0.25].collect({|i| i.ampdb.round}) == [0,-3,-6,-9,-12]
map (round . ampdb) [1,0.7,0.5,0.35,0.25] == [0,-3,-6,-9,-12]dbamp :: Floating a => a -> a Source
SimpleNumber.dbamp converts decibels to a linear amplitude.
> [0,-3,-6,-9,-12].collect({|i| (i.dbamp * 100).floor}) == [100,70,50,35,25]
map (floor . (* 100) . dbamp) [0,-3,-6,-9,-12] == [100,70,50,35,25]degreeToKey :: RealFrac a => [a] -> a -> a -> a Source
SimpleNumber.degreeToKey translates degree, scale and steps per
octave to key.
> (0..5).collect({|i| i.degreeToKey([0,1,5,9,11],12)}) == [0,1,5,9,11,12]
map (degreeToKey [0,1,5,9,11] 12) [0..5] == [0,1,5,9,11,12]map (degreeToKey [0,2,4,5,7,9,11] 12) [5,6,7,8] == [9,11,12,14]
linexp :: (Ord a, Floating a) => a -> a -> a -> a -> a -> a Source
SimpleNumber.linexp shifts from linear to exponential ranges.
> [1,1.5,2].collect({|i| i.linexp(1,2,10,100).floor}) == [10,31,100]
map (floor . linexp 1 2 10 100) [1,1.5,2] == [10,31,100]octpc_to_midi :: Num a => (a, a) -> a Source
midicps :: Floating a => a -> a Source
SimpleNumber.midicps translates from midi note number to cycles
per second.
> [57,69].collect({|i| i.midicps}) == [220,440]
map midicps [57,69] == [220,440]octpc_to_cps :: Floating a => (a, a) -> a Source
midicps of octpc_to_midi.
degree_to_cps :: (Floating a, RealFrac a) => [a] -> a -> a -> a -> a Source
degree_to_cps' :: (Floating a, RealFrac a) => [a] -> a -> [a] -> [a] -> [a] Source
Variant with list inputs for degree and octave, and scalar inputs for scale and steps.
UGen
exprange :: Floating b => b -> b -> b -> b Source
UGen.exprand shifts a linear (0,1) value to an exponential
range.
map (floor . exprange 10 100) [0,0.5,1] == [10,31,100]