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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;
import com.jsyn.ports.UnitInputPort;
import com.jsyn.ports.UnitOutputPort;
/**
* Multi-channel mixer with mono output and master amplitude.
*
* @author Phil Burk (C) 2014 Mobileer Inc
* @see MixerMonoRamped
* @see MixerStereo
*/
public class MixerMono extends UnitGenerator implements UnitSink, UnitSource {
public UnitInputPort input;
/**
* Linear gain for the corresponding input.
*/
public UnitInputPort gain;
/**
* Master gain control.
*/
public UnitInputPort amplitude;
public UnitOutputPort output;
public MixerMono(int numInputs) {
addPort(input = new UnitInputPort(numInputs, "Input"));
addPort(gain = new UnitInputPort(numInputs, "Gain", 1.0));
addPort(amplitude = new UnitInputPort("Amplitude", 1.0));
addPort(output = new UnitOutputPort(getNumOutputs(), "Output"));
}
public int getNumOutputs() {
return 1;
}
@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);
sum += inputs[i] * gains[i];
}
outputs[i] = sum * amplitudes[i];
}
}
@Override
public UnitInputPort getInput() {
return input;
}
@Override
public UnitOutputPort getOutput() {
return output;
}
}
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