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80 lines
1.3 KiB
C++
80 lines
1.3 KiB
C++
//
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// FILE: WaveMix.cpp
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.4
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// PURPOSE: Arduino library to mix two signals (A and B) with an adaptive weight.
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// URL: https://github.com/RobTillaart/WaveMix
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#include "WaveMix.h"
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WaveMix::WaveMix()
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{
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_weight[0] = 0.5;
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_weight[1] = 0.5;
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_gain = 1.0;
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_offset = 0.0;
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}
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bool WaveMix::setWeight(float weight1, float weight2)
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{
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if ((weight1 + weight2) == 0) return false; // test for <= 0 ?
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float factor = 1.0 / (weight1 + weight2);
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_weight[0] = weight1 * factor;
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_weight[1] = weight2 * factor;
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return true;
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}
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bool WaveMix::setPercentage(float percentage)
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{
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if ((percentage < 0) || (percentage > 100)) return false;
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_weight[0] = percentage * 0.01;
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_weight[1] = 1.0 - _weight[0];
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return true;
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}
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// do we need a value check here
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void WaveMix::setGain(float gain)
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{
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_gain = gain;
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};
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float WaveMix::getGain()
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{
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return _gain;
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};
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// do we need a value check here
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void WaveMix::setOffset(float offset)
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{
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_offset = offset;
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};
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float WaveMix::getOffset()
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{
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return _offset;
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};
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float WaveMix::mix(float s1, float s2)
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{
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float total = 0;
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if (_gain == 0) return 0;
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if (_weight[0] != 0) total += (_weight[0] * s1);
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if (_weight[1] != 0) total += (_weight[1] * s2);
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total *= _gain;
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if (_offset != 0) total += _offset;
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return total;
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}
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// -- END OF FILE --
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