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vbr.c

NAME

SYNOPSIS

#include 'vbr.h'
#include <math.h>

Defines

#define sqr(x) ((x)*(x))

#define MIN_ENERGY 6000

#define NOISE_POW .3

Functions

void vbr_init (VBRState *vbr)

float vbr_analysis (VBRState *vbr, spx_word16_t *sig, int len, int pitch, float pitch_coef)

void vbr_destroy (VBRState *vbr)

Variables

const float vbr_nb_thresh [9][11]

const float vbr_hb_thresh [5][11]

const float vbr_uhb_thresh [2][11]

Define Documentation

#define MIN_ENERGY 6000

#define NOISE_POW .3

#define sqr(x) ((x)*(x))

Function Documentation

float vbr_analysis (VBRState * vbr, spx_word16_t * sig, int len, int pitch, float pitch_coef)

void vbr_destroy (VBRState * vbr)

void vbr_init (VBRState * vbr)

Variable Documentation

const float vbr_hb_thresh[5][11]

Initial value:

 {
    {-1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0}, 
    {-1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0}, 
    {11.0, 11.0,  9.5,  8.5,  7.5,  6.0,  5.0,  3.9,  3.0,  2.0,  1.0}, 
    {11.0, 11.0, 11.0, 11.0, 11.0,  9.5,  8.7,  7.8,  7.0,  6.5,  4.0}, 
    {11.0, 11.0, 11.0, 11.0, 11.0, 11.0, 11.0, 11.0,  9.8,  7.5,  5.5}   
 }
 

const float vbr_nb_thresh[9][11]

Initial value:

 {
    {-1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0}, 
    { 3.5,  2.5,  2.0,  1.2,  0.5,  0.0, -0.5, -0.7, -0.8, -0.9, -1.0}, 
    {10.0,  6.5,  5.2,  4.5,  3.9,  3.5,  3.0,  2.5,  2.3,  1.8,  1.0}, 
    {11.0,  8.8,  7.5,  6.5,  5.0,  3.9,  3.9,  3.9,  3.5,  3.0,  1.0}, 
    {11.0, 11.0,  9.9,  9.0,  8.0,  7.0,  6.5,  6.0,  5.0,  4.0,  2.0}, 
    {11.0, 11.0, 11.0, 11.0,  9.5,  9.0,  8.0,  7.0,  6.5,  5.0,  3.0}, 
    {11.0, 11.0, 11.0, 11.0, 11.0, 11.0,  9.5,  8.5,  8.0,  6.5,  4.0}, 
    {11.0, 11.0, 11.0, 11.0, 11.0, 11.0, 11.0, 11.0,  9.8,  7.5,  5.5},  
    { 8.0,  5.0,  3.7,  3.0,  2.5,  2.0,  1.8,  1.5,  1.0,  0.0,  0.0}  
 }
 

const float vbr_uhb_thresh[2][11]

Initial value:

 {
    {-1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0}, 
    { 3.9,  2.5,  0.0,  0.0,  0.0,  0.0,  0.0,  0.0,  0.0,  0.0, -1.0}  
 }
 

Author

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