mirror of
https://github.com/radio95-rnt/fm95.git
synced 2026-07-29 15:59:14 +02:00
14 lines
303 B
C
14 lines
303 B
C
#pragma once
|
|
|
|
#include <math.h>
|
|
#include "constants.h"
|
|
|
|
typedef struct
|
|
{
|
|
float alpha;
|
|
float prev_sample;
|
|
float gain;
|
|
} ResistorCapacitor;
|
|
|
|
void init_preemphasis(ResistorCapacitor *filter, float tau, float sample_rate, float ref_freq);
|
|
float apply_preemphasis(ResistorCapacitor *filter, float sample); |