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diff --git a/trunk/main/libresample/src/filterkit.h b/trunk/main/libresample/src/filterkit.h
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+++ b/trunk/main/libresample/src/filterkit.h
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+/**********************************************************************
+
+  resamplesubs.c
+
+  Real-time library interface by Dominic Mazzoni
+
+  Based on resample-1.7:
+    http://www-ccrma.stanford.edu/~jos/resample/
+
+  License: LGPL - see the file LICENSE.txt for more information
+
+**********************************************************************/
+
+/* Definitions */
+#include "resample_defs.h"
+
+/*
+ * FilterUp() - Applies a filter to a given sample when up-converting.
+ * FilterUD() - Applies a filter to a given sample when up- or down-
+ */
+
+float lrsFilterUp(float Imp[], float ImpD[], UWORD Nwing, BOOL Interp,
+                  float *Xp, double Ph, int Inc);
+
+float lrsFilterUD(float Imp[], float ImpD[], UWORD Nwing, BOOL Interp,
+                  float *Xp, double Ph, int Inc, double dhb);
+
+void lrsLpFilter(double c[], int N, double frq, double Beta, int Num);