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ME_SPEC(1-ESPS)                             ENTROPIC RESEARCH LAB



          where _g_r_a_n_g_e is a general range  specification  accept-
          able  to  _g_r_a_n_g_e__s_w_i_t_c_h(3 -ESPSu).  The bracketed range
          specification specifies the indices of a subsequence of
          the  elements of the named field that are to be used as
          the spectral parameters.

     _s_p_e_c__r_e_p - _s_t_r_i_n_g
          A name or abbreviation for the type of spectral parame-
          ters.  Acceptable values include "RC" (reflection coef-
          ficients), "LAR" (log area ratios), "AUTO"  (normalized
          autocorrelation  coefficients),  "AFC"  (autoregressive
          filter coefficients),  "CEP"  (cepstrum  coefficients),
          and  "LSF"  (line spectral frequencies).  See the docu-
          mentation for reps_rc(_3-_E_S_P_S_s_p).  This  parameter  must
          be  explicitly  specified  in the parameter file unless
          the input file is a FEA_ANA file and the ----GGGG  option  is
          not  specified.   The  default in that case is the con-
          tents of the generic header item _s_p_e_c__r_e_p.

     _p_o_w_e_r__f_i_e_l_d - _s_t_r_i_n_g
          A field containing the total  power  of  the  spectrum.
          Either  this  parameter  or  _p_o_w_e_r  must  be explicitly
          specified in the parameter file unless the  input  file
          is  a  FEA_ANA file and the ----GGGG option is not specified.
          The default in that case is "raw_power".

     _p_o_w_e_r - _f_l_o_a_t
          A numerical value for the total power of the  spectrum.
          This  value is used, and applies to all records, unless
          the parameter _p_o_w_e_r__f_i_e_l_d is defined and names a  field
          that  exists in the input file.  In that case, the con-
          tents of the named field are used instead.

     _s_a_m_p__f_r_e_q__n_a_m_e - _s_t_r_i_n_g
          The name of a generic header  item  that  contains  the
          sampling frequency.  Either this parameter or _s_a_m_p__f_r_e_q
          must be explicitly  specified  in  the  parameter  file
          unless  the  input  file  is  a FEA_ANA file and the ----GGGG
          option is not specified.  The default in that  case  is
          "src_sf".

     _s_a_m_p__f_r_e_q - _f_l_o_a_t
          A numerical value for  the  sampling  frequency.   This
          values  is  used unless the parameter _s_a_m_p__f_r_e_q__n_a_m_e is
          defined and names a generic header item that exists  in
          the  input file.  In that case, the value of the header
          item takes precedence.

EEEESSSSPPPPSSSS HHHHEEEEAAAADDDDEEEERRRRSSSS
     The values _c_o_m_m_o_n._t_y_p_e, _v_a_r_i_a_b_l_e._r_e_f_e_r, and _h_d._f_e_a->_f_e_a__t_y_p_e
     are  read  from the header of the input file.  The following
     generic header items may also read if the input is a FEA_ANA



        Copyright Entropic Research Laboratory, Inc. 4G4        4






ME_SPEC(1-ESPS)                             ENTROPIC RESEARCH LAB



     file:   _o_r_d_e_r__v_c_d,  _o_r_d_e_r__u_n_v_c_d,  _s_r_c__s_f,  _s_p_e_c__r_e_p  _f_r_m_l_e_n,
     _s_t_a_r_t, _n_a_n, and _m_a_x_p_u_l_s_e_s.

     The following parameters are written to the  header  of  the
     FEA_SPEC   file:    _c_o_m_m_o_n._t_a_g,   _c_o_m_m_o_n._p_r_o_g,  _c_o_m_m_o_n._v_e_r_s,
     _c_o_m_m_o_n._p_r_o_g_d_a_t_e, _v_a_r_i_a_b_l_e._r_e_f_e_r, _f_r_m_l_e_n (long), _s_f  (float),
     _f_r_a_m_e__m_e_t_h  (CODED), _f_r_e_q__f_o_r_m_a_t (CODED), _s_p_e_c__t_y_p_e (CODED),
     _c_o_n_t_i_n (CODED), _n_u_m__f_r_e_q_s (LONG).  For  input  FEA_ANA  (5 -
     ESPS)  files,  _o_r_d_e_r__v_c_d  (LONG)  and _o_r_d_e_r__u_n_v_c_d (LONG) are
     added to the output file header.   In  addition,  the  input
     file is added as the source of the output file, and the com-
     mand line is added as a comment.

     The generic header item _s_t_a_r_t__t_i_m_e is written in the  output
     file.    The   value  written  is  computed  by  taking  the
     _s_t_a_r_t__t_i_m_e value from the header of the input file (or zero,
     if  such  a  header item doesn't exist) and adding to it the
     offset time (from the beginning of the input  file)  of  the
     first  point  or  record  processed.  If _r_e_c_o_r_d__f_r_e_q doesn't
     exist in the input file, it defaults to 1.  Otherwise, it is
     copied  to  the  output  file  header.   This item gives the
     number of records per second of original data analyzed.

SSSSEEEEEEEE AAAALLLLSSSSOOOO
     _r_e_f_c_o_f (1-ESPS), _p_l_o_t_s_p_e_c (1- ESPS),  _r_e_p_s__r_c  (3 - ESPSsp),
     FEA_SPEC (5-ESPS), ESPS (5-ESPS),

DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS
     me_spec: unknown option: -_l_e_t_t_e_r
     Usage: me_spec [-n num_freqs][ - o  order][ - r  range][ - x
     debug_level][-G][-P params] ana_file spec_file
     me_spec: too many file names specified.
     me_spec: too few file names specified.
     me_spec: number of frequencies _n is less than 2.
     me_spec: can't open _f_i_l_e_n_a_m_e: _r_e_a_s_o_n
     me_spec: _f_i_l_e_n_a_m_e is not an ESPS file
     me_spec: Can't start before beginning of file.
     me_spec: Last record precedes first.
     me_spec: Name of spec_param field not specified.
     me_spec: Unrecognized spectral representation.
     me_spec: Spectral representation not specified.
     me_spec: Field _n_a_m_e and  symbol  "power"  undefined  or  not
     float.
     me_spec: Neither field nor default value  for  power  speci-
     fied.
     me_spec: Header item _n_a_m_e and symbol  "samp_freq"  undefined
     or not float.
     me_spec: No header-item name or default value  for  sampling
     frequency.
     me_spec: Input field _n_a_m_e undefined.
     me_spec: Input field _n_a_m_e undefined or not float.
     me_spec: Input field length _n too small.



        Copyright Entropic Research Laboratory, Inc. 5G5        5






ME_SPEC(1-ESPS)                             ENTROPIC RESEARCH LAB



     me_spec: can't allocate memory--input spectral parameters
     me_spec: can't allocate memory--lpc filter
     me_spec: can't allocate memory--reflection coefficients
     me_spec: unknown spectral parameter type

     When _d_e_b_u_g__l_e_v_e_l!=0, the  reflection  coefficients,  average
     raw power, location tag, and inverse filter coefficients are
     listed for each record.

BBBBUUUUGGGGSSSS
     The _f_r_a_m_e__l_e_n field in an input FEA_ANA record,  defined  as
     ``number of samples to synthesize from frame,'' is copied to
     the  _f_r_a_m_e__l_e_n  field  in  a  spectral  record,  defined  as
     ``number  of  samples in analysis window.''  This is invalid
     if the FEA_ANA file was produced by a program for which  the
     two are different.

WWWWAAAARRRRNNNNIIIINNNNGGGGSSSS
     In order to produce FEA_SPEC (5-ESPS) that can  be  overlaid
     on  FEA_SPEC (5-ESPS) files produced by _f_f_t (1-ESPS), the ----GGGG
     option should be used. This produces a generic FEA_SPEC (5 -
     ESPS) file without the voicing information.

FFFFUUUUTTTTUUUURRRREEEE CCCCHHHHAAAANNNNGGGGEEEESSSS
AAAAUUUUTTTTHHHHOOOORRRR
     S. Shankar Narayan.  Made SDS compatible by Joe Buck.   Ori-
     ginally called _p_l_t_s_p_c, later _f_a_n_a_s_p_e_c. Modified for ESPS and
     number of frequencies made variable by Rod Johnson, Entropic
     Speech,  Inc.   Modified  for  FEA_ANA  files by John Shore.
     Additions by Rod Johnson  to  accept  spec_reps  other  than
     reflection  coefficients  and  to  accept  files  other than
     FEA_ANA files.























        Copyright Entropic Research Laboratory, Inc. 6G6        6