1 #pragma once
2 
3 #include <stdio.h>
4 
5 typedef struct {
6   float a0, a1, a2, b1, b2;
7   float i1, i2, o1, o2;
8 } loudness_processor;
9 
10 extern loudness_processor loudness_r;
11 extern loudness_processor loudness_l;
12 
13 void loudness_set_volume(float volume);
14 float loudness_process(loudness_processor *p, float sample);
15