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          present,   override  these  defaults.   The  choice  of
          "other" uses defaults that are the same as "wb".

     <EM>lpc</EM>_<EM>method</EM> - <EM>string</EM>
          The analysis method used to compute reflection  coeffi-
          cients.  This parameter is not read if the <STRONG>-a</STRONG> is used.

     <EM>data</EM>_<EM>window</EM> - <EM>string</EM>
          The data window to apply to the data.   This  parameter
          is  not read if the <STRONG>-d</STRONG> option is specified or if <EM>method</EM>
          is in the parameter file and does not  have  the  value
          "other".   Acceptable  values include "RECT" for a rec-
          tangular window, "HAMMING", for Hamming, "HANNING"  for
          Hanning,  "COS4" for cosine 4th, and "TRIANG", for tri-
          angular; see the <STRONG><A HREF="../man3.html/window.3.html">window(3-ESPSsp)</A></STRONG> manual page  for  the
          complete list.

     <EM>start</EM> - <EM>integer</EM>

          The first point in the input sampled data file that  is
          processed.   A  value  of 1 denotes the first sample in
          the file.  This parameter is not read  if  any  of  the
          range  command  line options are used.  If it is not in
          the parameter file, and neither option is specified,  a
          default value of 1 is used.

     <EM>nan</EM> - <EM>integer</EM>

          The total number of data points to process.  If <EM>nan</EM>  is
          0,  processing  continues  through the end of the file.
          This parameter is not read if any of the range  command
          line options are used.

     <EM>window</EM>_<EM>len</EM> - <EM>float</EM>

          The duration in milliseconds of each frame. This param-
          eter  not  read  if  the  <STRONG>-w</STRONG>  option is specified of if
          <EM>method</EM> is in the file  and  does  not  have  the  value
          "other".

     <EM>pre</EM>_<EM>emphasis</EM> - <EM>float</EM>
          The coefficient in the preemphasis filter (see  <STRONG>-</STRONG> <STRONG>E</STRONG>  in
          the Options section). This parameter not read if the <STRONG>-E</STRONG>
          option is specified.

     <EM>step</EM>_<EM>size</EM> - <EM>float</EM>
          Initial points of consecutive  frames  differ  by  this
          number of milliseconds.  This parameter not read if the
          <STRONG>-S</STRONG> option is specified.

     <EM>order</EM> - <EM>integer</EM>
          The number of reflection coefficients computed for each
          frame of input data.  If no value is given in the file,
          a default value of 15 is used.  This value is not  read
          if the command line option <STRONG>-o</STRONG> is used.

     <EM>strcov</EM>_<EM>test</EM> - <EM>float</EM>

          If STRCOV is used, this is the convergence  test  value
          (the lower the value, the smaller the change per itera-
          tion before termination). This is not  read  if  <STRONG>-c</STRONG>  is
          used.

     <EM>strcov</EM>_<EM>maxiter</EM> - <EM>int</EM>

          If STRCOV is used, this is the maximum number of itera-
          tions allowed before the estimator terminates.  This is
          not read if <STRONG>-i</STRONG> is used.

     The values of parameters obtained from  the  parameter  file
     are printed if the environment variable ESPS_VERBOSE is 3 or
     greater.  The default value is 3.


</PRE>
<H2>ESPS COMMON</H2><PRE>
     ESPS Common is  read  provided  that  Common  processing  is
     enabled  and  that  the  <EM>filename</EM>  entry  in  Common matches
     <EM>input</EM>.<EM>SD</EM>, in which case parameters present in  Common  over-
     ride  values  from  the parameter file, which in turn may be
     overriden by command line options  (see  the  discussion  in
     ESPS  PARAMETERS  and under each option).  Common processing
     is useful when <STRONG><A HREF="../man1.html/range.1.html">range (1-ESPS)</A></STRONG> is used to  select  a  segment
     from  <EM>file</EM>.<EM>sd</EM>.  Common  is  not  read if <EM>file</EM>.<EM>sd</EM> is standard
     input. If <EM>file</EM>.<EM>rc</EM> is not standard output and <EM>file</EM>.<EM>sd</EM> is  not
     standard  input, the Common parameters <EM>filename</EM> (= file.sd),
     <EM>prog</EM> (= refcof), <EM>start</EM>, and <EM>nan</EM> are written to ESPS Common.

     ESPS Common  processing  may  be  disabled  by  setting  the
     environment  variable USE_ESPS_COMMON to "off".  The default
     ESPS Common file is setting the environment variable ESPSCOM
     to  the desired path.  User feedback of Common processing is
     determined by the environment variable ESPS_VERBOSE, with  0
     causing  no  feedback and increasing levels causing increas-
     ingly detailed feedback.  If ESPS_VERBOSE is not defined,  a
     default value of 3 is assumed.


</PRE>
<H2>ESPS HEADERS</H2><PRE>
     The generic header item <EM>start</EM>_<EM>time</EM> (type DOUBLE) is  written
     in the output file.  The value written is computed by taking
     the <EM>start</EM>_<EM>time</EM> 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  processed.  Also, the generic header item
     <EM>record</EM>_<EM>freq</EM> (type DOUBLE) is written  in  the  output  file.
     The  value  is  the  number  of output records per second of
     input data.  For details on the parameters used  by  all  of
     the  programs in the script, look at all of the intermediate
     headers (e.g., via <EM>psps</EM> <STRONG>-a</STRONG>).


</PRE>
<H2>FUTURE CHANGES</H2><PRE>
     <STRONG><A HREF="../man1.html/Me_sgram.1.html">Me_sgram (1-ESPS)</A></STRONG> will be re-implemented as a C program.


</PRE>
<H2>SEE ALSO</H2><PRE>
     <STRONG><A HREF="../man1.html/sgram.1.html">sgram (1-ESPS)</A></STRONG>, <STRONG><A HREF="../man1.html/plotsgram.1.html">plotsgram (1-ESPS)</A></STRONG>, <STRONG><A HREF="../man1.html/filter.1.html">filter (1-ESPS)</A></STRONG>,
     <STRONG><A HREF="../man1.html/refcof.1.html">refcof (1-ESPS)</A></STRONG>, <STRONG><A HREF="../man1.html/me_spec.1.html">me_spec (1-ESPS)</A></STRONG>, <STRONG><A HREF="../man3.html/compute_rc.3.html">compute_rc (3-ESPSsp)</A></STRONG>,
     <STRONG><A HREF="../man1.html/dither.1.html">dither (1-ESPS)</A></STRONG>, <STRONG><A HREF="../man5.html/FEA_SPEC.5.html">FEA_SPEC (5-ESPS)</A></STRONG>, <STRONG><A HREF="../man5.html/FEA_SD.5.html">FEA_SD (5-ESPS)</A></STRONG>


</PRE>
<H2>BUGS</H2><PRE>
     This script cannot read standard input.


</PRE>
<H2>AUTHOR</H2><PRE>
     Manual page and program by David Burton. Revisions  by  John
     Shore.

































</PRE>
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