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/*
* Copyright 2014 Phil Burk, Mobileer Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.jsyn.unitgen;
/**
* Similar to MixerMono but the gain and amplitude ports are smoothed using short linear ramps. So
* you can control them with knobs and not hear any zipper noise.
*
* @author Phil Burk (C) 2014 Mobileer Inc
*/
public class MixerMonoRamped extends MixerMono {
private Unzipper[] unzippers;
private Unzipper amplitudeUnzipper;
public MixerMonoRamped(int numInputs) {
super(numInputs);
unzippers = new Unzipper[numInputs];
for (int i = 0; i < numInputs; i++) {
unzippers[i] = new Unzipper();
}
amplitudeUnzipper = new Unzipper();
}
@Override
public void generate(int start, int limit) {
double[] amplitudes = amplitude.getValues(0);
double[] outputs = output.getValues(0);
for (int i = start; i < limit; i++) {
double sum = 0;
for (int n = 0; n < input.getNumParts(); n++) {
double[] inputs = input.getValues(n);
double[] gains = gain.getValues(n);
double smoothGain = unzippers[n].smooth(gains[i]);
sum += inputs[i] * smoothGain;
}
outputs[i] = sum * amplitudeUnzipper.smooth(amplitudes[i]);
}
}
}
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