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Pitch envelope in cents, bend_smooth linear in pitch

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This commit is contained in:
Jean Pierre Cimalando 2021-04-13 20:45:06 +02:00
parent 5ec58b4bba
commit 8809a9db97
1 changed files with 25 additions and 25 deletions
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50
src/sfizz/Voice.cpp
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@ -268,7 +268,6 @@ struct Voice::Impl
ADSREnvelope egAmplitude_;
std::unique_ptr<ADSREnvelope> egPitch_;
std::unique_ptr<ADSREnvelope> egFilter_;
float bendStepFactor_ { centsFactor(1) };
WavetableOscillator waveOscillators_[config::oscillatorsPerVoice];
@ -501,9 +500,8 @@ bool Voice::startVoice(Layer* layer, int delay, const TriggerEvent& event) noexc
impl.baseFrequency_ = resources.tuning.getFrequencyOfKey(impl.triggerEvent_.number);
impl.sampleEnd_ = int(region.getSampleEnd(resources.midiState, resources.filePool.getOversamplingFactor()));
impl.sampleSize_ = impl.sampleEnd_- impl.sourcePosition_ - 1;
impl.bendStepFactor_ = centsFactor(region.bendStep);
impl.bendSmoother_.setSmoothing(region.bendSmooth, impl.sampleRate_);
impl.bendSmoother_.reset(centsFactor(region.getBendInCents(resources.midiState.getPitchBend())));
impl.bendSmoother_.reset(region.getBendInCents(resources.midiState.getPitchBend()));
resources.modMatrix.initVoice(impl.id_, region.getId(), impl.initialDelay_);
impl.saveModulationTargets(&region);
@ -1022,7 +1020,7 @@ void Voice::Impl::filterStageStereo(AudioSpan<float> buffer) noexcept
void Voice::Impl::fillWithData(AudioSpan<float> buffer) noexcept
{
const auto numSamples = buffer.getNumFrames();
const size_t numSamples = buffer.getNumFrames();
if (numSamples == 0)
return;
@ -1045,14 +1043,17 @@ void Voice::Impl::fillWithData(AudioSpan<float> buffer) noexcept
if (!jumps)
return;
fill(*jumps, pitchRatio_ * speedRatio_);
absl::Span<float> pitch = *jumps; // temporary
pitchEnvelope(pitch);
float baseRatio = pitchRatio_ * speedRatio_;
for (size_t i = 0; i < numSamples; ++i)
(*jumps)[i] = baseRatio * centsFactor(pitch[i]);
// Take the first sample if the voice just started
if (age_ == 0)
jumps->front() = 0.0f;
pitchEnvelope(*jumps);
jumps->front() += floatPositionOffset_;
cumsum<float>(*jumps, *jumps);
sfzInterpolationCast<float>(*jumps, *indices, *coeffs);
@ -1461,15 +1462,20 @@ void Voice::Impl::fillWithGenerator(AudioSpan<float> buffer) noexcept
absl::c_generate(leftSpan, gen);
absl::c_generate(rightSpan, gen);
} else {
const auto numFrames = buffer.getNumFrames();
const size_t numFrames = buffer.getNumFrames();
auto frequencies = resources_.bufferPool.getBuffer(numFrames);
if (!frequencies)
return;
float keycenterFrequency = midiNoteFrequency(pitchKeycenter_);
fill(*frequencies, pitchRatio_ * keycenterFrequency);
pitchEnvelope(*frequencies);
absl::Span<float> pitch = *frequencies; // temporary
pitchEnvelope(pitch);
const float keycenterFrequency = midiNoteFrequency(pitchKeycenter_);
const float baseRatio = pitchRatio_ * keycenterFrequency;
for (size_t i = 0; i < numFrames; ++i)
(*frequencies)[i] = baseRatio * centsFactor(pitch[i]);
auto detuneSpan = resources_.bufferPool.getBuffer(numFrames);
if (!detuneSpan)
@ -1901,34 +1907,28 @@ void Voice::Impl::switchState(State s)
void Voice::Impl::pitchEnvelope(absl::Span<float> pitchSpan) noexcept
{
const auto numFrames = pitchSpan.size();
auto bends = resources_.bufferPool.getBuffer(numFrames);
if (!bends)
return;
const size_t numFrames = pitchSpan.size();
const EventVector& events = resources_.midiState.getPitchEvents();
const auto bendLambda = [this](float bend) {
return centsFactor(region_->getBendInCents(bend));
return region_->getBendInCents(bend);
};
if (region_->bendStep > 1.0f)
pitchBendEnvelope(events, *bends, bendLambda, bendStepFactor_);
linearEnvelope(events, pitchSpan, bendLambda, region_->bendStep);
else
pitchBendEnvelope(events, *bends, bendLambda);
bendSmoother_.process(*bends, *bends);
applyGain<float>(*bends, pitchSpan);
linearEnvelope(events, pitchSpan, bendLambda);
bendSmoother_.process(pitchSpan, pitchSpan);
ModMatrix& mm = resources_.modMatrix;
if (float* mod = mm.getModulation(pitchTarget_)) {
for (size_t i = 0; i < numFrames; ++i)
pitchSpan[i] *= centsFactor(mod[i]);
}
if (float* mod = mm.getModulation(pitchTarget_))
add<float>(absl::MakeSpan(mod, numFrames), pitchSpan);
}
void Voice::Impl::resetSmoothers() noexcept
{
bendSmoother_.reset(1.0f);
bendSmoother_.reset(0.0f);
gainSmoother_.reset(0.0f);
}