scales.h File Reference

#include <math.h>
#include "os.h"

Go to the source code of this file.

Macros
#define	VORBIS_IEEE_FLOAT32   1
#define	todB_nn(x)   todB(x)
#define	fromdB(x)   (exp((x)*.11512925f))
#define	toBARK(n)   (13.1f*atan(.00074f*(n))+2.24f*atan((n)*(n)*1.85e-8f)+1e-4f*(n))
#define	fromBARK(z)   (102.f*(z)-2.f*pow(z,2.f)+.4f*pow(z,3.f)+pow(1.46f,z)-1.f)
#define	toMEL(n)   (log(1.f+(n)*.001f)*1442.695f)
#define	fromMEL(m)   (1000.f*exp((m)/1442.695f)-1000.f)
#define	toOC(n)   (log(n)*1.442695f-5.965784f)
#define	fromOC(o)   (exp(((o)+5.965784f)*.693147f))

Macro Definition Documentation

#define fromBARK

(

z

)

(102.f*(z)-2.f*pow(z,2.f)+.4f*pow(z,3.f)+pow(1.46f,z)-1.f)

Definition at line 77 of file scales.h.

#define fromdB

(

x

)

(exp((x)*.11512925f))

Definition at line 65 of file scales.h.

#define fromMEL

(

m

)

(1000.f*exp((m)/1442.695f)-1000.f)

Definition at line 79 of file scales.h.

#define fromOC

(

o

)

(exp(((o)+5.965784f)*.693147f))

Definition at line 85 of file scales.h.

#define toBARK

(

n

)

(13.1f*atan(.00074f*(n))+2.24f*atan((n)*(n)*1.85e-8f)+1e-4f*(n))

Definition at line 76 of file scales.h.

#define todB_nn

(

x

)

todB(x)

Definition at line 49 of file scales.h.

#define toMEL

(

n

)

(log(1.f+(n)*.001f)*1442.695f)

Definition at line 78 of file scales.h.

#define toOC

(

n

)

(log(n)*1.442695f-5.965784f)

Definition at line 84 of file scales.h.

#define VORBIS_IEEE_FLOAT32   1

Definition at line 25 of file scales.h.