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John Alanbrook
2022-07-10 02:46:23 +00:00
parent 7299d6d96f
commit b953ae2f1d
7 changed files with 240 additions and 113 deletions
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25
source/engine/iir.h
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@@ -1,6 +1,22 @@
#ifndef IIR_H
#define IIR_H
#include "dsp.h"
struct dsp_iir {
float freq;
int n; // Amount of constants
int order; // How many times it's applied
float *ccof;
float *dcof;
float *dx;
float *dy;
struct dsp_filter in;
};
struct dsp_iir make_iir(int cofs, int order);
double *binomial_mult( int n, double *p );
double *trinomial_mult( int n, double *b, double *c );
@@ -23,6 +39,11 @@ float *fir_lp(int n, double fcf);
float *fir_hp(int n, double fcf);
float *fir_bpf(int n, double fcf1, double fcf2);
struct dsp_iir sp_lp(double fcf);
struct dsp_iir sp_hp(double fcf);
double chevy_pct_to_e(double pct);
struct dsp_iir bqlp_dcof(double fcf, float Q);
struct dsp_iir bqhp_dcof(double fcf, float Q);
struct dsp_iir bqbpq_dcof(double fcf, float Q);
@@ -42,7 +63,7 @@ struct dsp_iir p2_beshp(double fcf);
struct dsp_iir che_lp(int order, double fcf, double e);
struct dsp_iir che_hp(int order, double fcf, double e);
struct dsp_iir che_bp(int order, double fcf1, double fcf2, double e);
struct dsp_iir che_notch(int order, double fcf1, double fcf2, double e);
struct dsp_iir che_bp(int order, double s, double fcf1, double fcf2, double e);
struct dsp_iir che_notch(int order, double s, double fcf1, double fcf2, double e);
#endif