HTK HMM definition

HTKのHMMを格納するためのデータ構造定義 [詳細]

データ構造
struct	HTK_HMM_StreamInfo
	Stream information (although current Julius supports only single stream) [詳細]
struct	HTK_HMM_Options
	HMM Option [詳細]
struct	_HTK_HMM_trans
	HMM transition table [詳細]
struct	_HTK_HMM_variance
	HMM variance data [詳細]
struct	_HTK_HMM_dens
	HMM Gaussian density (or mixture) data [詳細]
struct	_HTK_HMM_stream_weight
	HMM stream weight definition [詳細]
struct	_HTK_HMM_PDF
	HMM mixture PDF for a stream [詳細]
struct	_HTK_HMM_state
	HMM state data [詳細]
struct	_HTK_HMM_data
	Top HMM model, corresponds to "~h" macro in hmmdefs [詳細]
struct	GCODEBOOK
	Gaussian mixture codebook in tied-mixture model [詳細]
struct	BASEPHONE
	Basephone information extracted from hmminfo [詳細]
struct	HMM_basephone
	List of all basephone in hmminfo [詳細]
struct	HTK_HMM_INFO
	Top HMM structure that holds all the HTK HMM definition [詳細]
マクロ定義
#define	MAX_STATE_NUM   2147483647
	Possible maximum value of state ID (in unsigned short)
#define	HMM_RC_DLIM   "+"
	Delimiter strings/characters to generate logical triphone names Right context delimiter in string
#define	HMM_LC_DLIM   "-"
	Left context delimiter in string
#define	HMM_RC_DLIM_C   '+'
	Right context delimiter in character
#define	HMM_LC_DLIM_C   '-'
	Left context delimiter in character
#define	SPMODEL_NAME_DEFAULT   "sp"
	Default logical name of short pause model
#define	MAX_HMMNAME_LEN   256
	Length limit of HMM name (including ones generated in Julius)
型定義
typedef _HTK_HMM_trans	HTK_HMM_Trans
	HMM transition table
typedef _HTK_HMM_variance	HTK_HMM_Var
	HMM variance data
typedef _HTK_HMM_dens	HTK_HMM_Dens
	HMM Gaussian density (or mixture) data
typedef _HTK_HMM_stream_weight	HTK_HMM_StreamWeight
	HMM stream weight definition
typedef _HTK_HMM_PDF	HTK_HMM_PDF
	HMM mixture PDF for a stream
typedef _HTK_HMM_state	HTK_HMM_State
	HMM state data
typedef _HTK_HMM_data	HTK_HMM_Data
	Top HMM model, corresponds to "~h" macro in hmmdefs
列挙型
enum	iwcd_type { IWCD_UNDEF, IWCD_MAX, IWCD_AVG, IWCD_NBEST }
	Specify method of calculating approximated acoustic score at inter-word context pseudo phones on word edge [詳細]

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説明

HTKのHMMを格納するためのデータ構造定義

データ構造はモデル・状態からガウス分布の平均・分散まで各レベルごとに 定義されています．各レベルはおおよそ HTK のマクロ定義に対応しています． 各データは, 下位のデータ構造へのポインタ および同レベルの構造体同士のリンクリストを保持しています．

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型定義

typedef struct _HTK_HMM_PDF HTK_HMM_PDF

HMM mixture PDF for a stream

覚え書き:

In a tied-mixture model, b points to a codebook defined as GCODEBOOK intead of the array of densities.

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列挙型

enum iwcd_type

Specify method of calculating approximated acoustic score at inter-word context pseudo phones on word edge

列挙型の値:

IWCD_UNDEF	not specified explicitly
IWCD_MAX	Use maximum score among context variants
IWCD_AVG	Use average score among context variants
IWCD_NBEST	Use average of N-best scores among context variants

htk_hmm.h の 86 行で定義されています。

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