dB.h File Reference

#include <limits>
#include "pbd/fastlog.h"

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Macros
#define	GAIN_COEFF_ZERO   0.f
#define	GAIN_COEFF_SMALL   0.0000001f
#define	GAIN_COEFF_UNITY   1.f

Functions
static float	dB_to_coefficient (float dB)
static float	fast_coefficient_to_dB (float coeff)
static float	accurate_coefficient_to_dB (float coeff)
static double	dB_coeff_step (double max_coeff)

Variables
double	zero_db_as_fraction

Macro Definition Documentation

GAIN_COEFF_SMALL

#define GAIN_COEFF_SMALL   0.0000001f

Definition at line 28 of file dB.h.

GAIN_COEFF_UNITY

#define GAIN_COEFF_UNITY   1.f

Definition at line 29 of file dB.h.

GAIN_COEFF_ZERO

#define GAIN_COEFF_ZERO   0.f

Definition at line 27 of file dB.h.

Function Documentation

accurate_coefficient_to_dB()

static float accurate_coefficient_to_dB ( float  coeff )

inlinestatic

Definition at line 39 of file dB.h.

dB_coeff_step()

static double dB_coeff_step ( double  max_coeff )

inlinestatic

Definition at line 44 of file dB.h.

dB_to_coefficient()

static float dB_to_coefficient ( float  dB )

inlinestatic

Definition at line 31 of file dB.h.

fast_coefficient_to_dB()

static float fast_coefficient_to_dB ( float  coeff )

inlinestatic

Definition at line 35 of file dB.h.

Variable Documentation

zero_db_as_fraction

double zero_db_as_fraction

extern