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PC World 2008 February
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reaper
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2007-12-03
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38 lines
// (C) 2007, 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:Transhape (for Drums)
slider1:0<-100,100,1>Attack (%)
slider2:0<-100,100,1>Sustain (%)
@init
b1Env1 = -exp(-10 / srate );
a0Env1 = 1.0 + b1Env1;
b1Env2 = -exp(-62 / srate );
a0Env2 = 1.0 + b1Env2;
@slider
attack=slider1/100;
sustain=slider2/100;
@sample
maxSpls = max(abs(spl0),abs(spl1));
env1 = (tmpEnv1 = a0Env1*maxSpls - b1Env1*tmpEnv1);
env2 = (tmpEnv2 = a0Env2*maxSpls - b1Env2*tmpEnv2);
gain = env2 - env1;
(gain > 0) ? gain = exp( log(1+(env2/env1))*attack ) : gain = exp( log(1+(env1/env2))*sustain ) ;
spl0 *= gain;
spl1 *= gain;