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#ifndef UTILS_H_ #define UTILS_H_ #include <math.h> #define MIN(a,b) (((a)<(b))?(a):(b)) #define MAX(a,b) (((a)>(b))?(a):(b)) #define NUMOF(l) (sizeof(l) / sizeof(*l)) #define linear_to_dB(x) (log10(x) * 20) const char* level(int channel, int* peak); #endif