refactor(osc): support held-note parameter updates without phase reset

Add Oscillator::setParams() which updates detune, pan, and gain for
already-initialised sub-voices without resetting their phases. This
preserves phase continuity when unison or spread is LFO-modulated at
control rate. noteOn() now just seeds phases and delegates to
setParams().

Precompute panL/panR in SubVoice instead of calling cos/sin per
sample. Add paramsValid and cachedParams to skip redundant work.

Replace SynthVoice's lastUnisonA/B tracking with a single
oscillatorsNeedNoteOn flag: noteOn sets it, render clears it after
the first block. Add SubLevel and NoiseLevel to the per-voice
modulation targets so they can be modulated like other parameters.

This commit is contained in:

biggy

2026-09-09 14:33:21 +02:00

parent 40dc0d4105

commit cd26beca42

4 changed files with 88 additions and 46 deletions

									
										Source/SynthVoice.h
									
		+1
		-1
	
												View File
												
				@@ -87,7 +87,7 @@ private:

				    bool   released = false;

				    juce::uint64 noteId = 0;

				    int lastUnisonA = 1, lastUnisonB = 1;

				    bool oscillatorsNeedNoteOn = false;

				    juce::uint32 seed = 0;

				    float noteRandom = 0.5f;