Add an RC highpass filter, which seemingly does a good job of emulating the one in...
[c64tapwav] / filter.h
index a67f98a..916d9cc 100644 (file)
--- a/filter.h
+++ b/filter.h
@@ -17,6 +17,7 @@ public:
        void reset();
 
        static Filter lpf(float cutoff_radians);
+       static Filter hpf(float cutoff_radians);
 
 private:
        float a1, a2, b0, b1, b2;