quantise.h File Reference

Go to the source code of this file.

Macros
#define	WO_BITS   7
#define	WO_LEVELS   (1<<WO_BITS)
#define	E_BITS   5
#define	E_LEVELS   (1<<E_BITS)
#define	E_MIN_DB   -10.0
#define	E_MAX_DB   40.0

Functions
void	quantise_init ()
float	lpc_model_amplitudes (float Sn[], float w[], MODEL *model, int order, int lsp, float ak[])
void	aks_to_M2 (float ak[], int order, MODEL *model, float E, float *snr, int dump)
int	encode_Wo (float Wo)
float	decode_Wo (int index)
void	encode_lsps (int indexes[], float lsp[], int order)
void	decode_lsps (float lsp[], int indexes[], int order)
void	lspd_quantise (float lsp[], float lsp_[], int order)
void	lspdvq_quantise (float lsp[], float lsp_[], int order)
int	encode_energy (float e)
float	decode_energy (int index)
void	encode_amplitudes (int lsp_indexes[], int *energy_index, MODEL *model, float Sn[], float w[])
float	decode_amplitudes (MODEL *model, float ak[], int lsp_indexes[], int energy_index, float lsps[], float *e)
void	pack (unsigned char *bits, unsigned int *nbit, int index, unsigned int index_bits)
int	unpack (const unsigned char *bits, unsigned int *nbit, unsigned int index_bits)
int	lsp_bits (int i)
void	apply_lpc_correction (MODEL *model)
float	speech_to_uq_lsps (float lsp[], float ak[], float Sn[], float w[], int order)
void	bw_expand_lsps (float lsp[], int order)

---

Macro Definition Documentation

#define E_BITS   5

#define E_LEVELS   (1<<E_BITS)

#define E_MAX_DB   40.0

#define E_MIN_DB   -10.0

#define WO_BITS   7

#define WO_LEVELS   (1<<WO_BITS)

---

Function Documentation

void aks_to_M2	(	float	ak[],
		int	order,
		MODEL *	model,
		float	E,
		float *	snr,
		int	dump
	)

void apply_lpc_correction

(

MODEL *

model

)

void bw_expand_lsps	(	float	lsp[],
		int	order
	)

float decode_amplitudes	(	MODEL *	model,
		float	ak[],
		int	lsp_indexes[],
		int	energy_index,
		float	lsps[],
		float *	e
	)

float decode_energy

(

int

index

)

void decode_lsps	(	float	lsp[],
		int	indexes[],
		int	order
	)

float decode_Wo

(

int

index

)

void encode_amplitudes	(	int	lsp_indexes[],
		int *	energy_index,
		MODEL *	model,
		float	Sn[],
		float	w[]
	)

int encode_energy

(

float

e

)

void encode_lsps	(	int	indexes[],
		float	lsp[],
		int	order
	)

int encode_Wo

(

float

Wo

)

float lpc_model_amplitudes	(	float	Sn[],
		float	w[],
		MODEL *	model,
		int	order,
		int	lsp,
		float	ak[]
	)

int lsp_bits

(

int

i

)

void lspd_quantise	(	float	lsp[],
		float	lsp_[],
		int	order
	)

void lspdvq_quantise	(	float	lsp[],
		float	lsp_[],
		int	order
	)

void pack	(	unsigned char *	bits,
		unsigned int *	nbit,
		int	index,
		unsigned int	index_bits
	)

void quantise_init

(

)

float speech_to_uq_lsps	(	float	lsp[],
		float	ak[],
		float	Sn[],
		float	w[],
		int	order
	)

int unpack	(	const unsigned char *	bits,
		unsigned int *	nbit,
		unsigned int	index_bits
	)