19 lines
282 B
C
19 lines
282 B
C
/*
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* Copyright 2022 Oleg Borodin <borodin@unix7.org>
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*/
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#ifndef FILTER_H_QWERTY
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#define FILTER_H_QWERTY
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typedef struct {
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double x0;
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double x1;
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double rc;
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} lpf_t;
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void lpf_init(lpf_t *lpf, double freq);
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double lpf_apply(lpf_t *lpf, double x2, double dt);
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#endif
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