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feat: add soft clipping mode

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This commit is contained in:
Liam Kerr 2026-08-02 22:58:56 +01:00
parent 556519a750
commit e7ff4fcc18
5 changed files with 45 additions and 13 deletions
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27
core/Clipper.cpp
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@ -1,10 +1,12 @@
#include "Clipper.hpp"
#include <cmath>
Clipper::Clipper(float init_clip) : clip_(init_clip) {}
Clipper::Clipper(float init_clip, ClipperMode init_mode)
: clip_(init_clip), mode_(init_mode) {}
void Clipper::process(const float *in, float *out, uint32_t frames) {
for (uint32_t i = 0; i < frames; ++i) {
out[i] = in[i] > clip_ ? clip_ : in[i];
out[i] = clip(in[i]);
}
}
void Clipper::processStereo(const float *inLeft, const float *inRight,
@ -16,11 +18,20 @@ void Clipper::processStereo(const float *inLeft, const float *inRight,
}
float Clipper::clip(const float in) {
float out = in;
if (in > 0) {
out = in > clip_ ? clip_ : in;
} else {
out = in < -clip_ ? -clip_ : in;
switch (mode_) {
default:
case kClipperModeHard: {
float out = in;
if (in > 0) {
out = in > clip_ ? clip_ : in;
} else {
out = in < -clip_ ? -clip_ : in;
}
return out;
}
case kClipperModeSoft: {
float normalized = (in / clip_) * 0.75f;
return std::tanh(normalized) * clip_;
}
}
return out;
}