This is a simple filter for 8-bit sounds.
You specify A and B parameter values for it (A values for the non-recursive bit,

and B values for the recursive bit)

Usage:

FilterSound sound_file number_of_A number_of_B A1 A2 ... An B1 B2 ... Bm

number_of_A is the number of A coefficients
number_of_B is the number of B coefficients

Ax and Bx are the actual coefficients.

(16.16 fixed point arithmetic is used for the calculations)

This then implements the following IIR (or FIR filter if you set number_of_B to
0) filter:

y[t] = Sum{a[1]*x[t]+a[2]*x[t-1]+..+a[n]*x[t-(n-1)]}
      +Sum{b[1]*y[t-1]*b[2]*y[t-2]+..+b[n]*y[t-m]}

If you can calculate what values to use .. you can do whatever you want with dis
filter :)

Calculating which values to use, however, is another matter altogether :)


Other neat stuff by me:
======================

/dev/basic/bgp.lha            -  Blitz Genetic-Programming Environment
/dev/basic/gasp.lha           -  Genetic Algorithm Sample Packer in Blitz
/dev/misc/SimpTrans.lha       -  Simple Automatic Translation of .ct files!
/dev/misc/ST_uk2gr.lha        -  Uk2Gr phrasebook for SimpTrans
/dev/misc/YAAV.lha            -  YAAV V0.99 - Yet Another Autodoc Viewer
/dev/misc/Uk2GrCorpus.lha     -  A compact english-greek parallel aligned
linguistic corpus
/game/shoot/allrox.lha        -  HardCore FRENETIC shootem'up - HARD! FAST!
OUCH!
/game/actio/wreckage.lha      -  Experimental Driving Sim
/game/actio/wreckage_src.lha  -  Source for driving sim (older version :)
/gfx/show/gsaview.la          -  GsAView - View ghostscript output with
anti-aliasing
/util/pack/agf.lha            -  AGF V0.9 n*8-bit Sample Pre-Packing Processor


Olethros/DC, Jan 2000
----------------------






============================= Archive contents =============================

LhA Freeware Version 2.1
Copyright © 1991-94 by Stefan Boberg.
Copyright © 1998,1999 by Jim Cooper and David Tritscher.

Listing of archive 'games:t/olethros/FilterSound.lha':
Original  Packed Ratio    Date     Time    Name
-------- ------- ----- --------- --------  -------------
   17004    9677 43.0% 09-Jan-00 02:05:16 +FilterSound
    2578    1286 50.1% 09-Jan-00 02:22:12  FilterSound.readme
-------- ------- ----- --------- --------
   19582   10963 44.0% 09-Jan-00 02:22:32   2 files

Operation successful.



Created Using CreateAminetReadMe by Lorens Johansson.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 9677   17004  56.9% -lh5- b11b Jan  9  2000 bin/FilterSound
[generic]                 1286    2578  49.9% -lh5- 4c4a Jan  9  2000 FilterSound.readme
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         2 files   10963   19582  56.0%            Jan 10  2000