mirror of
https://codeberg.org/armin/chromaflock.git
synced 2026-09-01 20:30:47 +02:00
628e1e3cba
- Rename section labels: COMPRESSOR → COMPRESSION, AUTO-PAN → PANNING - Replace spectrum analyzer bars with smooth gapless filled wave - Use gold (#c59c07) for wave/spectrum strokes and piano roll active keys - Amber CRT-style patch LCD with dark background and gold dot-matrix text - Add MIDI signal LED with glow between semi and scale controls - Reduce VU meter sensitivity (5x → 1.5x) and match amber gradient theme - Add subtle glow behind section and sub-section boxes - Fix Compressor.h class name and PluginProcessor include to match
47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
#pragma once
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#include <cmath>
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#include <algorithm>
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class Compression {
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public:
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void prepare(double sr) {
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sampleRate = sr;
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envelope = 0.0f;
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}
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void setParameters(float thresholdDb, float ratio, float attackMs, float releaseMs,
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float makeupDb) {
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threshold = std::pow(10.0f, thresholdDb / 20.0f);
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compRatio = ratio;
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attackCoeff = std::exp(-1.0f / (attackMs * 0.001f * static_cast<float>(sampleRate)));
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releaseCoeff = std::exp(-1.0f / (releaseMs * 0.001f * static_cast<float>(sampleRate)));
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makeupGain = std::pow(10.0f, makeupDb / 20.0f);
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dryWet = 1.0f;
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}
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float process(float input) {
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float absIn = std::abs(input);
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float coeff = (absIn > envelope) ? attackCoeff : releaseCoeff;
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envelope = coeff * envelope + (1.0f - coeff) * absIn;
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float gain = 1.0f;
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if (envelope > threshold && compRatio > 1.0f) {
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float overDb = 20.0f * std::log10(envelope / threshold);
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float compressedDb = overDb / compRatio;
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gain = std::pow(10.0f, (compressedDb - overDb) / 20.0f);
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}
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float wet = input * gain * makeupGain;
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return input + (wet - input) * dryWet;
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}
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private:
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double sampleRate = 44100.0;
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float threshold = 0.1f;
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float compRatio = 4.0f;
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float attackCoeff = 0.0f;
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float releaseCoeff = 0.0f;
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float makeupGain = 1.0f;
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float dryWet = 1.0f;
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float envelope = 0.0f;
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};
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