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try a diffrent lpf

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KubaPro010
2025-03-27 18:09:20 +01:00
parent 0983b8db90
commit b2d97ef5e4
3 changed files with 28 additions and 30 deletions
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lib/filters.h
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@@ -24,5 +24,5 @@ typedef struct
float x1, x2;
float y1, y2;
} Biquad;
void init_butterworth_lpf(Biquad *filter, float cutoff_freq, float sample_rate);
void init_chebyshev_lpf(Biquad* filter, float cutoff_freq, float sample_rate, float ripple_db);
float biquad(Biquad *filter, float input);