// (C) 2006, Michael Gruhn.

// NO WARRANTY IS GRANTED. THIS PLUG-IN IS PROVIDED ON AN "AS IS" BASIS, WITHOUT
// WARRANTY OF ANY KIND. NO LIABILITY IS GRANTED, INCLUDING, BUT NOT LIMITED TO,
// ANY DIRECT OR INDIRECT,  SPECIAL,  INCIDENTAL OR CONSEQUENTIAL DAMAGE ARISING
// OUT OF  THE  USE  OR INABILITY  TO  USE  THIS PLUG-IN,  COMPUTER FAILTURE  OF
// MALFUNCTION INCLUDED.  THE USE OF THE SOURCE CODE,  EITHER  PARTIALLY  OR  IN
// TOTAL, IS ONLY GRANTED,  IF USED IN THE SENSE OF THE AUTHOR'S INTENTION,  AND
// USED WITH ACKNOWLEDGEMENT OF THE AUTHOR. FURTHERMORE IS THIS PLUG-IN A  THIRD
// PARTY CONTRIBUTION,  EVEN IF INCLUDED IN REAPER(TM),  COCKOS INCORPORATED  OR
// ITS AFFILIATES HAVE NOTHING TO DO WITH IT.  LAST BUT NOT LEAST, BY USING THIS
// PLUG-IN YOU RELINQUISH YOUR CLAIM TO SUE IT'S AUTHOR, AS WELL AS THE CLAIM TO
// ENTRUST SOMEBODY ELSE WITH DOING SO.


desc:3-Band Splitter (Splits In Low:CH1+2,Mid:CH3+4,High:CH5+6)
slider1:200<0,22000,1>Frequency (Hz)
slider2:2000<0,22000,1>Frequency (Hz)

@init
cDenorm=10^-30;

@slider
freqHP = max(min(slider2,srate),slider4);
xHP = exp(-2.0*$pi*freqHP/srate);
a0HP = 1.0-xHP;
b1HP = -xHP;

freqLP = min(min(slider1,srate),slider2);
xLP = exp(-2.0*$pi*freqLP/srate);
a0LP = 1.0-xLP;
b1LP = -xLP;

@sample

s0 = spl0;
s1 = spl1;

spl0 = (tmplLP = a0LP*s0 - b1LP*tmplLP + cDenorm);
spl1 = (tmprLP = a0LP*s1 - b1LP*tmprLP + cDenorm);

spl4 = s0 - (tmplHP = a0HP*s0 - b1HP*tmplHP + cDenorm);
spl5 = s1 - (tmprHP = a0HP*s1 - b1HP*tmprHP + cDenorm);

spl2 = s0 - spl0 - spl4;
spl3 = s1 - spl1 - spl5;


