htk_hmm.h

about sound recognition.i want to downlod

  HTK_HMM_Trans *tr;		///< Transition matrix
  struct _cd_set *next;         ///< Pointer to next data, NULL if last
} CD_Set;
/// Top structure to hold all the %HMM sets
typedef struct {
  APATNODE *cdtree;		///< Root of index tree for name lookup
} HMM_CDSET_INFO;
//@}


/**
 * @ingroup cdset
 *
 * @brief Logical %HMM to map logical names to physical/pseudo %HMM
 *
 * This data maps logical %HMM name to physical (defined) %HMM or pseudo %HMM.
 * The logical %HMM names are basically loaded from %HMMList mapping file.
 * Biphone/monophone %HMM names, not listed in the %HMMList file,
 * are mapped to pseudo phones, which represents the context-dependent %HMM
 * set.
 *
 * For example, if logical biphone %HMM name "e-k" is defined in %HMM definition
 * file or its mapping is specified in the HMMList file, the Logical %HMM name
 * "e-k" will be mapped to the corresponding defined %HMM.
 * If "e-k" does not exist in
 * both %HMM definition file and HMMList file, triphones whose name matches
 * "e-k+*" will be gathered to phone context-dependent %HMM set "e-k", and
 * the logical %HMM name "e-k" will be mapped to this %HMM set.
 *
 * The context-dependent %HMM is also called a "pseudo" phone in Julius.
 *
 */
typedef struct _HMM_logical {
  char *name;			///< Name string of this logical %HMM
  boolean is_pseudo;		///< TRUE if this is mapped to pseudo %HMM
  /// Actual body of state definition
  union {
    HTK_HMM_Data *defined;	///< pointer to the mapped physical %HMM
    CD_Set *pseudo;		///< pointer to the mapped pseudo %HMM
  } body;
  struct _HMM_logical *next;   ///< Pointer to next data, NULL if last
} HMM_Logical;

/**
 * @ingroup hmminfo
 *
 * @brief Basephone information extracted from hmminfo
 */
typedef struct {
  char *name;			///< Base phone name
  boolean bgnflag;		///< TRUE if it can appear on word beginning determined by word dictionary
  boolean endflag;		///< TRUE if it can appear on word end determined by word dictionary
} BASEPHONE;
/**
 * @ingroup hmminfo
 *
 * @brief List of all basephone in hmminfo
 */
typedef struct {
  int num;			///< Total number of base phone
  int bgnnum;			///< Number of phones that can appear on word beginning
  int endnum;			///< Number of phones that can appear on word end
  APATNODE *root;		///< Root of index tree for name lookup
} HMM_basephone;

/**
 * @ingroup hmminfo
 * 
 * @brief Top %HMM structure that holds all the HTK %HMM definition
 */
typedef struct {
  /**
   * @name %HMM definitions from hmmdefs
   */
  //@{
  HTK_HMM_Options opt;		///< Global option
  HTK_HMM_Trans *trstart;	///< Root pointer to the list of transition matrixes
  HTK_HMM_Var *vrstart;		///< Root pointer to the list of variance data
  HTK_HMM_Dens *dnstart;	///< Root pointer to the list of density (mixture) data
  HTK_HMM_State *ststart;	///< Root pointer to the list of state data
  HTK_HMM_Data *start;		///< Root pointer to the list of models
  //@}

  /**
   * @name logical %HMM
   */
  //@{
  HMM_Logical *lgstart;		///< Root pointer to the list of Logical %HMMs
  //@}
  
  /**
   * @name Root nodes of index tree for name lookup of %HMM instances
   */
  //@{
  APATNODE *tr_root;		///< Root index node for transition matrixes
  APATNODE *vr_root;		///< Root index node for variance data
  APATNODE *dn_root;		///< Root index node for density data
  APATNODE *st_root;		///< Root index node for state data
  APATNODE *physical_root;	///< Root index node for defined %HMM name
  APATNODE *logical_root;	///< Root index node for logical %HMM name
  APATNODE *codebook_root;	///< Root index node for Gaussian codebook of tied mixture %HMM
  //@}

  /**
   * @name Information extracted from %HMM instances
   */
  //@{
  HMM_basephone basephone;	///< Base phone names extracted from logical %HMM
  HMM_CDSET_INFO cdset_info;	///< Context-dependent pseudo phone set
  //@}
  
  /**
   * @name Misc. model information
   */
  //@{
  boolean is_triphone;		///< TRUE if this is triphone model
  boolean is_tied_mixture;	///< TRUE if this is tied-mixture model
  short cdset_method;		///< Selected method of computing pseudo phones in iwcd_type
  short cdmax_num;		///< Number of N-best states when IWCD_NBEST
  HMM_Logical *sp;		///< Link to short pause model
#ifdef MULTIPATH_VERSION
  LOGPROB iwsp_penalty;		///< Extra ransition penalty for interword skippable short pause insertion
#endif
  boolean variance_inversed;	///< TRUE if variances are inversed
  
  int totalmixnum;		///< Total number of defined mixtures
  int totalstatenum;		///< Total number of states
  int totalhmmnum;		///< Total number of physical %HMM
  int totallogicalnum;		///< Total number of logical %HMM
  int totalpseudonum;		///< Total number of pseudo %HMM
  int codebooknum;		///< Total number of codebook on tied-mixture model
  int maxcodebooksize;		///< Maximum size of codebook on tied-mixture model
  int maxmixturenum;		///< Maximum number of Gaussian per mixture
  int maxstatenum;		///< Maximum number of state per model

  BMALLOC_BASE *mroot;		///< Pointer for block memory allocation
  BMALLOC_BASE *lroot;		///< Pointer for block memory allocation for logical HMM

  //@}
} HTK_HMM_INFO;



/* init_phmm.c */
void htk_hmm_set_pause_model(HTK_HMM_INFO *hmminfo, char *spmodel_name);
/* rdhmmdef.c */
void rderr(char *str);
char *read_token(FILE *fp);
boolean rdhmmdef(FILE *, HTK_HMM_INFO *);
void htk_hmm_inverse_variances(HTK_HMM_INFO *hmm);
/* rdhmmdef_options.c */
void set_global_opt(FILE *fp, HTK_HMM_INFO *hmm);
char *get_cov_str(short covtype);
char *get_dur_str(short durtype);
/* rdhmmdef_trans.c */
void trans_add(HTK_HMM_INFO *hmm, HTK_HMM_Trans *new);
HTK_HMM_Trans *get_trans_data(FILE *, HTK_HMM_INFO *);
void def_trans_macro(char *, FILE *, HTK_HMM_INFO *);
/* rdhmmdef_state.c */
HTK_HMM_State *get_state_data(FILE *, HTK_HMM_INFO *);
void def_state_macro(char *, FILE *, HTK_HMM_INFO *);
HTK_HMM_State *state_lookup(HTK_HMM_INFO *hmm, char *keyname);
void state_add(HTK_HMM_INFO *hmm, HTK_HMM_State *new);
/* rdhmmdef_dens.c */
HTK_HMM_Dens *get_dens_data(FILE *, HTK_HMM_INFO *);
void def_dens_macro(char *, FILE *, HTK_HMM_INFO *);
HTK_HMM_Dens *dens_lookup(HTK_HMM_INFO *hmm, char *keyname);
void dens_add(HTK_HMM_INFO *hmm, HTK_HMM_Dens *new);
/* rdhmmdef_var.c */
HTK_HMM_Var *get_var_data(FILE *, HTK_HMM_INFO *);
void def_var_macro(char *, FILE *, HTK_HMM_INFO *);
void var_add(HTK_HMM_INFO *hmm, HTK_HMM_Var *new);
/* rdhmmdef_data.c */
void def_HMM(char *, FILE *, HTK_HMM_INFO *);
HTK_HMM_Data *htk_hmmdata_new(HTK_HMM_INFO *);
void htk_hmmdata_add(HTK_HMM_INFO *hmm, HTK_HMM_Data *new);
/* rdhmmdef_tiedmix.c */
void tmix_read(FILE *fp, HTK_HMM_State *state, HTK_HMM_INFO *hmm);
void codebook_add(HTK_HMM_INFO *hmm, GCODEBOOK *new);
/* rdhmmdef_regtree.c */
void def_regtree_macro(char *name, FILE *fp, HTK_HMM_INFO *hmm);
/* rdhmmdef_hmmlist.c */
boolean rdhmmlist(FILE *fp, HTK_HMM_INFO *hmminfo);
/* put_htkdata_info.c */
void put_htk_trans(HTK_HMM_Trans *t);
void put_htk_var(HTK_HMM_Var *v);
void put_htk_dens(HTK_HMM_Dens *d);
void put_htk_state(HTK_HMM_State *s);
void put_htk_hmm(HTK_HMM_Data *h);
void put_logical_hmm(HMM_Logical *l);
void print_hmmdef_info(HTK_HMM_INFO *);
HTK_HMM_INFO *hmminfo_new();
boolean hmminfo_free(HTK_HMM_INFO *);
void init_hmminfo(HTK_HMM_INFO *hmminfo, char *filename, char *mapfile, Value *para);
HTK_HMM_Data *htk_hmmdata_lookup_physical(HTK_HMM_INFO *, char *);
HMM_Logical *htk_hmmdata_lookup_logical(HTK_HMM_INFO *, char *);
void hmm_add_physical_to_logical(HTK_HMM_INFO *);
void hmm_add_pseudo_phones(HTK_HMM_INFO *hmminfo);
/* chkhmmlist.c */
void make_hmm_basephone_list(HTK_HMM_INFO *hmminfo);

/* HMM type check functions */
boolean check_hmm_limit(HTK_HMM_Data *dt);
boolean check_all_hmm_limit(HTK_HMM_INFO *hmm);
boolean check_hmm_options(HTK_HMM_INFO *hmm);
#ifdef MULTIPATH_VERSION
boolean is_skippable_model(HTK_HMM_Data *d);
#endif

/* CCD related */
boolean guess_if_cd_hmm(HTK_HMM_INFO *hmm);
HMM_Logical *get_right_context_HMM(HMM_Logical *base, char *rc_name, HTK_HMM_INFO *hmminfo);
HMM_Logical *get_left_context_HMM(HMM_Logical *base, char *lc_name, HTK_HMM_INFO *hmminfo);
void add_right_context(char name[], char *rc);
void add_left_context(char name[], char *lc);
char *center_name(char *hmmname, char *buf);
char *leftcenter_name(char *hmmname, char *buf);
char *rightcenter_name(char *hmmname, char *buf);

/* CD_SET related */
boolean regist_cdset(APATNODE **root, HTK_HMM_Data *d, char *cdname);
boolean make_cdset(HTK_HMM_INFO *hmminfo);
void put_all_cdinfo(HTK_HMM_INFO *hmminfo);
void free_cdset(APATNODE **root);
CD_Set *cdset_lookup(HTK_HMM_INFO *hmminfo, char *cdstr);
CD_Set *lcdset_lookup_by_hmmname(HTK_HMM_INFO *hmminfo, char *hmmname);
CD_Set *rcdset_lookup_by_hmmname(HTK_HMM_INFO *hmminfo, char *hmmname);
int hmm_logical_state_num(HMM_Logical *lg);
HTK_HMM_Trans *hmm_logical_trans(HMM_Logical *lg);

#include <sent/htk_param.h>
boolean check_param_coherence(HTK_HMM_INFO *hmm, HTK_Param *pinfo);
boolean check_param_basetype(HTK_HMM_INFO *hmm, HTK_Param *pinfo);
HTK_Param *new_param_check_and_adjust(HTK_HMM_INFO *hmm, HTK_Param *pinfo, boolean vflag);


/* binary format */
boolean write_binhmm(FILE *fp, HTK_HMM_INFO *hmm, Value *para);
boolean read_binhmm(FILE *fp, HTK_HMM_INFO *hmm, boolean gzfile_p, Value *para);

#endif /* __SENT_HTK_HMM_2_H__ */