/* For Copyright and License see LICENSE.txt and COPYING.txt in the root directory */
package com.nerdscentral.audio.pitch;
import java.util.List;
import com.nerdscentral.audio.core.SFSignal;
import com.nerdscentral.audio.pitch.algorithm.SFRBJFilter;
import com.nerdscentral.audio.pitch.algorithm.SFRBJFilter.FilterType;
import com.nerdscentral.sython.Caster;
import com.nerdscentral.sython.SFPL_Operator;
import com.nerdscentral.sython.SFPL_RuntimeException;
public class SF_BiquadAllPass implements SFPL_Operator
{
private static final long serialVersionUID = 1L;
@Override
public String Word()
{
return Messages.getString("SF_BiquadAllPass.0"); //$NON-NLS-1$
}
@Override
public Object Interpret(Object input) throws SFPL_RuntimeException
{
List<Object> l = Caster.makeBunch(input);
SFRBJFilter filter = new SFRBJFilter();
SFSignal x = Caster.makeSFSignal(l.get(0));
double frequency = Caster.makeDouble(l.get(1));
double q = Caster.makeDouble(l.get(2));
FilterType type = FilterType.ALLPASS;
filter.calc_filter_coeffs(type, frequency, q, 0);
SFSignal y = x.replicateEmpty();
int length = y.getLength();
for (int index = 0; index < length; ++index)
{
y.setSample(index, filter.filter(x.getSample(index)));
}
return y;
}
}