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Improve envelope logic #2262

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6 changes: 4 additions & 2 deletions OpenUtau.Core/Ustx/UPhoneme.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -126,8 +126,6 @@ void ValidateOverlap(UProject project, UTrack track, UPart part, UNote note) {
if (autoPreutter - autoOverlap > prevDur * 0.5f) {
maxPreutter = prevDur * 0.5f / (autoPreutter - autoOverlap) * autoPreutter;
}
} else { // Plosive consonants
maxPreutter = Math.Min(maxPreutter, prevDur * 0.9);
}
maxPreutter = Math.Min(maxPreutter, prevDur);
if (Prev.preutter < 5) {
Expand All @@ -148,6 +146,10 @@ void ValidateOverlap(UProject project, UTrack track, UPart part, UNote note) {
preutter = Math.Max(0, autoPreutter + (preutterDelta ?? 0));
overlap = autoOverlap + (overlapDelta ?? 0);
if (Prev != null) {
if (Prev.DurationMs - preutter < 5) {
var minOverlap = 5 - (Prev.DurationMs - preutter);
overlap = Math.Max(overlap, minOverlap);
}
Prev.tailIntrude = adjacent ? Math.Max(preutter, preutter - overlap) : 0;
Prev.tailOverlap = adjacent ? Math.Max(overlap, 0) : 0;
overlapped = adjacent && overlap > 0;
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