1 files changed, 25 insertions, 0 deletions
diff --git a/intern/audaspace/FX/AUD_LowpassCalculator.h b/intern/audaspace/FX/AUD_LowpassCalculator.h
new file mode 100644
index 00000000000..18bb11feda7
--- /dev/null
+++ b/intern/audaspace/FX/AUD_LowpassCalculator.h
@@ -0,0 +1,25 @@
+#ifndef AUD_LOWPASSCALCULATOR_H
+#define AUD_LOWPASSCALCULATOR_H
+
+#include "AUD_IDynamicIIRFilterCalculator.h"
+
+class AUD_LowpassCalculator : public AUD_IDynamicIIRFilterCalculator
+{
+private:
+	/**
+	 * The cutoff frequency.
+	 */
+	const float m_frequency;
+
+	/**
+	 * The Q factor.
+	 */
+	const float m_Q;
+
+public:
+	AUD_LowpassCalculator(float frequency, float Q);
+
+	virtual void recalculateCoefficients(AUD_SampleRate rate, std::vector<float> &b, std::vector<float> &a);
+};
+
+#endif // AUD_LOWPASSCALCULATOR_H