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lagrange interpolation optimization

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This commit is contained in:
John Melas 2025-04-13 15:47:20 +03:00
parent 392442906e
commit ad3a214b5c
1 changed files with 5 additions and 5 deletions
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10
modules/juce_dsp/processors/juce_DelayLine.h
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@ -253,16 +253,16 @@ private:
auto value3 = samples[index3];
auto value4 = samples[index4];
auto d0 = delayFrac;
auto d1 = delayFrac - 1.f;
auto d2 = delayFrac - 2.f;
auto d3 = delayFrac - 3.f;
auto c1 = -d1 * d2 * d3 / 6.f;
auto c2 = d2 * d3 * 0.5f;
auto c3 = -d1 * d3 * 0.5f;
auto c4 = d1 * d2 / 6.f;
auto a = d1 * d2 / 6.f;
auto b = d3 * d0 * 0.5f;
return value1 * c1 + delayFrac * (value2 * c2 + value3 * c3 + value4 * c4);
return a * (d0 * value4 - d3 * value1)
+ b * (d2 * value2 - d1 * value3);
}
else if constexpr (std::is_same_v<InterpolationType, DelayLineInterpolationTypes::Thiran>)
{