audio/saftpumpe
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add bypass parameter and DSP bypass logic

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Armin 2026-07-13 01:44:11 +02:00
commit bd9aa2fa67
2 changed files with 58 additions and 4 deletions
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46
Source/PluginProcessor.cpp
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@ -21,11 +21,17 @@ SaftpumpeProcessor::SaftpumpeProcessor()
std::make_unique<juce::AudioParameterFloat>(
mixID, "Mix", juce::NormalisableRange<float>(0.0f, 1.0f, 0.01f), 1.0f),
std::make_unique<juce::AudioParameterFloat>(
autoReleaseID, "Auto Release", juce::NormalisableRange<float>(0.0f, 1.0f, 0.01f), 1.0f)
autoReleaseID, "Auto Release", juce::NormalisableRange<float>(0.0f, 1.0f, 0.01f), 1.0f),
std::make_unique<juce::AudioParameterBool>(
bypassID, "Bypass", false)
})
{
inputScope.fill(0.0f);
outputScope.fill(0.0f);
fftInput.fill(0.0f);
fftOutput.fill(0.0f);
inputSpectrum.fill(0.0f);
outputSpectrum.fill(0.0f);
}
SaftpumpeProcessor::~SaftpumpeProcessor() {}
@ -36,6 +42,7 @@ void SaftpumpeProcessor::prepareToPlay(double sampleRate, int samplesPerBlock) {
compressorL.reset();
compressorR.reset();
scopeIndex = 0;
fftIndex = 0;
}
void SaftpumpeProcessor::releaseResources() {}
@ -51,6 +58,8 @@ void SaftpumpeProcessor::processBlock(juce::AudioBuffer<float>& buffer, juce::Mi
updateCompressorParams();
bool bypassed = parameters.getRawParameterValue(bypassID)->load() > 0.5f;
float maxInput = 0.0f;
float maxOutput = 0.0f;
float maxGR = 0.0f;
@ -67,9 +76,16 @@ void SaftpumpeProcessor::processBlock(juce::AudioBuffer<float>& buffer, juce::Mi
if (absIn > maxInput) maxInput = absIn;
inputScope[scopeIndex] = inL;
fftInput[fftIndex] = inL;
float outL = compressorL.processSample(inL);
float outR = compressorR.processSample(inR);
float outL, outR;
if (bypassed) {
outL = inL;
outR = inR;
} else {
outL = compressorL.processSample(inL);
outR = compressorR.processSample(inR);
}
channelDataL[sample] = outL;
if (channelDataR) channelDataR[sample] = outR;
@ -77,11 +93,33 @@ void SaftpumpeProcessor::processBlock(juce::AudioBuffer<float>& buffer, juce::Mi
float absOut = std::max(std::abs(outL), std::abs(outR));
if (absOut > maxOutput) maxOutput = absOut;
float gr = std::abs(compressorL.getGainReduction());
float gr = bypassed ? 0.0f : std::abs(compressorL.getGainReduction());
if (gr > maxGR) maxGR = gr;
outputScope[scopeIndex] = outL;
fftOutput[fftIndex] = outL;
scopeIndex = (scopeIndex + 1) % scopeSize;
fftIndex++;
if (fftIndex >= fftSize) {
fftIndex = 0;
auto computeSpectrum = [&](const std::array<float, fftSize>& input,
std::array<float, fftSize / 2>& spectrum) {
std::array<float, fftSize * 2> buf{};
std::copy(input.begin(), input.end(), buf.begin());
window.multiplyWithWindowingTable(buf.data(), fftSize);
fft.performFrequencyOnlyForwardTransform(buf.data(), true);
for (int i = 0; i < fftSize / 2; ++i) {
float db = (buf[i] > 0.00001f) ? 20.0f * std::log10(buf[i]) : -100.0f;
float norm = juce::jlimit(0.0f, 1.0f, (db + 80.0f) / 80.0f);
spectrum[i] = spectrum[i] * 0.7f + norm * 0.3f;
}
};
computeSpectrum(fftInput, inputSpectrum);
computeSpectrum(fftOutput, outputSpectrum);
}
}
currentInputLevel = currentInputLevel * 0.8f + (maxInput > 0.0001f ? 20.0f * std::log10(maxInput) : -100.0f) * 0.2f;