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LeakyIntegratorPatch.hpp
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////////////////////////////////////////////////////////////////////////////////////////////////////
/*
LICENSE:
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* created by the OWL team 2013 */
////////////////////////////////////////////////////////////////////////////////////////////////////
#ifndef __LeakyIntegratorPatch_hpp__
#define __LeakyIntegratorPatch_hpp__
#include "SampleBasedPatch.hpp"
class LeakyIntegratorPatch : public SampleBasedPatch {
private:
// leaky integrator
// y[n] = (1-lambda)*x[n] + lambda*y[n-1]
// dc removal
// y[n] = lambda*y[n-1] + x[n] - x[n-1]
float lambda, gain;
float y1;
public:
LeakyIntegratorPatch() : y1(0.0) {
registerParameter(PARAMETER_A, "Lambda");
registerParameter(PARAMETER_B, "");
registerParameter(PARAMETER_C, "");
registerParameter(PARAMETER_D, "Gain");
}
void prepare(){
lambda = getParameterValue(PARAMETER_A);
gain = getParameterValue(PARAMETER_D);
}
float processSample(float sample){
y1 = lambda*y1 + (1-lambda)*sample;
return gain*y1;
}
};
#endif /* __LeakyIntegratorPatch_hpp__ */
////////////////////////////////////////////////////////////////////////////////////////////////////