1 files changed, 2 insertions, 24 deletions
diff --git a/intern/audaspace/FX/AUD_HighpassFactory.cpp b/intern/audaspace/FX/AUD_HighpassFactory.cpp
index ba5297d21ed..2456085a8a1 100644
--- a/intern/audaspace/FX/AUD_HighpassFactory.cpp
+++ b/intern/audaspace/FX/AUD_HighpassFactory.cpp
@@ -29,33 +29,11 @@
 
 #include "AUD_HighpassFactory.h"
 #include "AUD_IIRFilterReader.h"
-
-#include <cmath>
-
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
+#include "AUD_HighpassCalculator.h"
 
 AUD_HighpassFactory::AUD_HighpassFactory(boost::shared_ptr<AUD_IFactory> factory, float frequency,
 										 float Q) :
-		AUD_DynamicIIRFilterFactory(factory),
-		m_frequency(frequency),
-		m_Q(Q)
+		AUD_DynamicIIRFilterFactory(factory, boost::shared_ptr<AUD_IDynamicIIRFilterCalculator>(new AUD_HighpassCalculator(frequency, Q)))
 {
 }
 
-void AUD_HighpassFactory::recalculateCoefficients(AUD_SampleRate rate,
-												  std::vector<float> &b,
-												  std::vector<float> &a)
-{
-	float w0 = 2.0 * M_PI * (AUD_SampleRate)m_frequency / rate;
-	float alpha = (float)(sin(w0) / (2.0 * (double)m_Q));
-	float norm = 1 + alpha;
-	float c = cos(w0);
-	a.push_back(1);
-	a.push_back(-2 * c / norm);
-	a.push_back((1 - alpha) / norm);
-	b.push_back((1 + c) / (2 * norm));
-	b.push_back((-1 - c) / norm);
-	b.push_back(b[0]);
-}