1 files changed, 8 insertions, 9 deletions
diff --git a/libs/qm-dsp/dsp/signalconditioning/FiltFilt.h b/libs/qm-dsp/dsp/signalconditioning/FiltFilt.h
index a722971ee2..e5a38124cf 100644
--- a/libs/qm-dsp/dsp/signalconditioning/FiltFilt.h
+++ b/libs/qm-dsp/dsp/signalconditioning/FiltFilt.h
@@ -18,23 +18,22 @@
 
 #include "Filter.h"
 
-struct FiltFiltConfig{
-    unsigned int ord;
-    double* ACoeffs;
-    double* BCoeffs;
-};
-
-class FiltFilt
+/**
+ * Zero-phase digital filter, implemented by processing the data
+ * through a filter specified by the given FilterConfig structure (see
+ * Filter) and then processing it again in reverse.
+ */
+class FiltFilt  
 {
 public:
-    FiltFilt( FiltFiltConfig Config );
+    FiltFilt( FilterConfig Config );
     virtual ~FiltFilt();
 
     void reset();
     void process( double* src, double* dst, unsigned int length );
 
 private:
-    void initialise( FiltFiltConfig Config );
+    void initialise( FilterConfig Config );
     void deInitialise();
 
     unsigned int m_ord;