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comb.hpp
Package: vlc-1.0.5.zip [view]
Upload User: kjfoods
Upload Date: 2020-07-06
Package Size: 29949k
Code Size: 1k
Category:
midi program
Development Platform:
Unix_Linux
- // Comb filter class declaration
- //
- // Written by Jezar at Dreampoint, June 2000
- // http://www.dreampoint.co.uk
- // This code is public domain
- #ifndef _comb_
- #define _comb_
- #include "denormals.h"
- /**
- * Combination filter
- *Takes multiple audio channels and mix them for one ear
- */
- class comb
- {
- public:
- comb();
- void setbuffer(float *buf, int size);
- inline float process(float inp);
- void mute();
- void setdamp(float val);
- float getdamp();
- void setfeedback(float val);
- float getfeedback();
- private:
- float feedback;
- float filterstore;
- float damp1;
- float damp2;
- float *buffer;
- int bufsize;
- int bufidx;
- };
- // Big to inline - but crucial for speed
- inline float comb::process(float input)
- {
- /* FIXME
- * comb::process is not really ear-friendly the tunning values must
- * be changed*/
- float output;
- output = undenormalise( buffer[bufidx] );
- filterstore = undenormalise(output*damp2);
- buffer[bufidx] = input + filterstore*feedback;
- if(++bufidx>=bufsize) bufidx = 0;
- return output;
- }
- #endif //_comb_
- //ends