#pragma once
#define FILTER_TAPS 256
#include <math.h>
#include <string.h>
#include <stdlib.h>
#include "constants.h"

typedef struct
{
    float alpha;
    float prev_sample;
} ResistorCapacitor;

void init_preemphasis(ResistorCapacitor *filter, float tau, float sample_rate);
float apply_preemphasis(ResistorCapacitor *filter, float sample);

float hard_clip(float sample, float threshold);
float voltage_db_to_voltage(float db);
float power_db_to_voltage(float db);
float voltage_to_voltage_db(float linear);
float voltage_to_power_db(float linear);