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-rw-r--r--alc/effects/fshifter.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/alc/effects/fshifter.cpp b/alc/effects/fshifter.cpp
index 1e7d1962..2ad98231 100644
--- a/alc/effects/fshifter.cpp
+++ b/alc/effects/fshifter.cpp
@@ -50,8 +50,8 @@ std::array<double,HIL_SIZE> InitHannWindow()
/* Create lookup table of the Hann window for the desired size, i.e. HIL_SIZE */
for(size_t i{0};i < HIL_SIZE>>1;i++)
{
- constexpr double scale{al::MathDefs<double>::Pi() / double{HIL_SIZE-1}};
- const double val{std::sin(static_cast<double>(i) * scale)};
+ constexpr double scale{al::MathDefs<double>::Pi() / double{HIL_SIZE}};
+ const double val{std::sin(static_cast<double>(i+1) * scale)};
ret[i] = ret[HIL_SIZE-1-i] = val * val;
}
return ret;