/**
* Copyright 2004-2006 DFKI GmbH.
* All Rights Reserved. Use is subject to license terms.
*
* This file is part of MARY TTS.
*
* MARY TTS is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package marytts.signalproc.process;
import marytts.util.math.MathUtils;
/**
* @author Marc Schröder
*
*/
public class PolarFrequencyProcessor extends FrequencyDomainProcessor {
/**
* @param fftSize
* fftsize
* @param amount
* amount
*/
public PolarFrequencyProcessor(int fftSize, double amount) {
super(fftSize, amount);
// super(fftSize);
}
public PolarFrequencyProcessor(int fftSize) {
this(fftSize, 1.0);
}
/**
* Here the actual processing of the frequency-domain frame (in cartesian coordinates) happens. This implementation converts
* to polar coordinates calls processPolar(), and converts the result back to cartesian coordinates.
*
* @param real
* real
* @param imag
* imag
*/
protected final void process(double[] real, double[] imag) {
MathUtils.toPolarCoordinates(real, imag);
// for readability:
double[] r = real;
double[] phi = imag;
// Now do something meaningful with the fourier transform
processPolar(r, phi);
// Convert back:
MathUtils.toCartesianCoordinates(real, imag);
}
/**
* Here the actual processing of the frequency-domain frame (in polar coordinates) happens. This base implementation does
* nothing.
*
* @param r
* r
* @param phi
* phi
*/
protected void processPolar(double[] r, double[] phi) {
}
}