zynaddsubfx

ZynAddSubFX open source synthesizer
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CombFilterBank.h (1021B)

      1 #include "../Misc/Allocator.h"
      2 #include "../globals.h"
      3 #include "../DSP/Value_Smoothing_Filter.h"
      4 
      5 #pragma once
      6 
      7 
      8 namespace zyn {
      9 
     10 /**Comb Filter Bank for sympathetic Resonance*/
     11 class CombFilterBank
     12 {
     13     public:
     14     CombFilterBank(Allocator *alloc, unsigned int samplerate_, int buffersize_, float initgain);
     15     ~CombFilterBank();
     16     void filterout(float *smp);
     17 
     18     float delays[NUM_SYMPATHETIC_STRINGS]={};
     19     float inputgain;
     20     float outgain;
     21     float gainbwd;
     22 
     23     void setStrings(unsigned int nr, const float basefreq);
     24 
     25 
     26     private:
     27     static float tanhX(const float x);
     28     float sampleLerp(const float *smp, const float pos) const;
     29 
     30     float* string_smps[NUM_SYMPATHETIC_STRINGS] = {};
     31     float baseFreq;
     32     unsigned int nrOfStrings=0;
     33     unsigned int pos_writer = 0;
     34 
     35     /* for smoothing gain jump when using binary valued sustain pedal */
     36     Value_Smoothing_Filter gain_smoothing;
     37 
     38     Allocator &memory;
     39     unsigned int mem_size=0;
     40     int samplerate=0;
     41     unsigned int buffersize=0;
     42 
     43 
     44 };
     45 
     46 }