source: SH_SHM/trunk/help/FILI.HLP @ 374

command FILI <kind> <filter1>[;<filter2>[;...;<filterN>]]
============

key: read filter(s)

Reads one or more filters from file into memory (only one digital 'D'
filter).  All following FILTER commands of the same <kind> will use
these filters read in.  Filters read in by previous FILI commands
are overwritten.  The filters are searched in the current directory
and if not found there, they are read from the filter directory.  The
filter directory can be changed by FCT PATH FILTER <dir-string>.

The filter file extensions must be omitted.  The extensions are
".FLF" for FFT and digital filters (<kind> = 'F', <kind> = 'D') and
".FLR" for recursive filters (<kind> = 'R').

For detailed information about filter file format see FILTFORM.INF.
If a sequence of FFT filters is read in, zeroes in numerator and
denominator of all transfer functions are shortened automatically
if possible.


parameters

<kind>  ---  parameter type: char
   Determines kind of filter file.  Valid values are 'F' (FFT filters),
   'D' (digital filters) and 'R' (recursive filters).

<filter1> ... <filterN>  ---  parameter type: filename (without extension)
   Name of filter files to be read into memory.


valid qualifiers

/COMPRESS
   Only valid for FFT filters (<kind> = 'F').  The transfer functions
   of the whole sequence is squeezed to a single transfer function.
   This way the filtering is done in a single step and not by a
   cascade of filters.


example:

   FILI F WWSSN_SP        ! reads WWSSN-SP FFT filter