Csound.Air

The vital tools.

Oscillators

Bipolar

osc :: Cps -> Sig

Pure tone.

oscBy :: Tab -> Cps -> Sig

Oscillates with the given table (cubic interpolation).

saw :: Cps -> Sig

Sawtooth.

sq :: Cps -> Sig

Square wave.

tri :: Cps -> Sig

Triangle wave.

Unipolar

unipolar :: Sig -> Sig

Turns a bipolar sound (ranges from -1 to 1) to unipolar (ranges from 0 to 1)

uosc :: Cps -> Sig

Unipolar pure tone.

uoscBy :: Tab -> Cps -> Sig

Unipolar oscBy.

usaw :: Cps -> Sig

Unipolar sawtooth.

usq :: Cps -> Sig

Unipolar square wave.

utri :: Cps -> Sig

Unipolar triangle wave.

Filters

Arguemnts are inversed to get most out of curruing. First come parameters and the last one is the signal.

Simple filters

lp :: Sig -> Sig -> Sig

Low-pass filter.

 lp cutoff sig

hp :: Sig -> Sig -> Sig

High-pass filter.

 hp cutoff sig

bp :: Sig -> Sig -> Sig -> Sig

Band-pass filter.

 bp cutoff bandwidth sig

br :: Sig -> Sig -> Sig -> Sig

Band-regect filter.

 br cutoff bandwidth sig

Butterworth filters

blp :: Sig -> Sig -> Sig

Low-pass filter.

 blp cutoff sig

bhp :: Sig -> Sig -> Sig

High-pass filter.

 bhp cutoff sig

bbp :: Sig -> Sig -> Sig -> Sig

Band-pass filter.

 bbp cutoff bandwidth sig

bbr :: Sig -> Sig -> Sig -> Sig

Band-regect filter.

 bbr cutoff bandwidth sig

Patterns

once :: Tab -> Sig

Reads table once during the note length.

several :: Tab -> Sig -> Sig

Reads table several times during the note length.

sine :: Tab

Table for pure sine wave.

mean :: Fractional a => [a] -> a

Mean value.

Series

hase :: (a -> Sig -> Sig) -> [a] -> Sig -> Sig

Harmonic series. Takes a function that transforms the signal by some parameter and the list of parameters. It constructs the series of transformers and sums them at the end with equal strength.

whase :: (a -> Sig -> Sig) -> [(Sig, a)] -> Sig -> Sig

Harmonic series, but now you can specify the weights of the final sum.

haseS :: (a -> Sig -> SE Sig) -> [a] -> Sig -> SE Sig

Harmonic series for functions with side effects.

whaseS :: (a -> Sig -> SE Sig) -> [(Sig, a)] -> Sig -> SE Sig

Weighted harmonic series for functions with side effects.

Crossfade

cfd :: Sig -> Sig -> Sig -> Sig

Crossfade.

 cfd coeff sig1 sig2

If coeff equals 0 then we get the first signal and if it equals 1 we get the second signal.

cfds :: [Sig] -> [Sig] -> Sig

Generic crossfade for n coefficients and n+1 signals.

 cfds coeffs sigs

cfdSpec :: Sig -> Spec -> Spec -> Spec

Spectral crossfade.

cfdsSpec :: [Sig] -> [Spec] -> Spec

Generic spectral crossfade.