From 4b4dea97e1a4be17663cef618e32a187f6978d1d Mon Sep 17 00:00:00 2001
From: Paul Ferrand <paul@ferrand.cc>
Date: Sun, 29 Mar 2020 17:12:25 +0200
Subject: [PATCH] Don't zero the modulation span

---
 src/sfizz/Voice.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/sfizz/Voice.cpp b/src/sfizz/Voice.cpp
index 424c3076..7bdc40b7 100644
--- a/src/sfizz/Voice.cpp
+++ b/src/sfizz/Voice.cpp
@@ -305,7 +305,6 @@ template<class T>
 void getLinearEnvelope(const sfz::CCMap<T>& ccMods, const sfz::MidiState& state, absl::Span<float> output, absl::Span<float> temp)
 {
     ASSERT(output.size() <= temp.size());
-    sfz::fill<T>(output, T{0.0});
     for (auto& mod : ccMods) {
         const auto eventList = state.getEvents(mod.cc);
         const auto modifier = static_cast<float>(mod.value);
@@ -339,6 +338,7 @@ void sfz::Voice::processMono(AudioSpan<float> buffer) noexcept
         ScopedTiming logger { amplitudeDuration };
 
         // Amplitude envelope
+        fill<float>(modulationSpan, baseGain);
         getLinearEnvelope(region->amplitudeCC, resources.midiState, modulationSpan, tempSpan);
         applyGain<float>(modulationSpan, leftBuffer);
 
@@ -393,6 +393,7 @@ void sfz::Voice::processStereo(AudioSpan<float> buffer) noexcept
         ScopedTiming logger { amplitudeDuration };
 
         // Amplitude envelope
+        fill<float>(modulationSpan, baseGain);
         getLinearEnvelope(region->amplitudeCC, resources.midiState, modulationSpan, tempSpan);
         buffer.applyGain(modulationSpan);