







                               MIDI to AdLib Converter
             Copyright(C) 1991, Patch Panel Software, All Rights Reserved

          Patch Panel Software has developed a MIDI-to-AdLib converter that
          is very successful converting MIDI standard files to AdLib's .ROL
          file format.   This is no small feat  considering MIDI is for all
          intents  and  purposes  a 32-bit  timing  standard  while AdLib's
          hardware  and software  imposes  a 16-bit  timing standard.   The
          converter  routinely tolerates  the 480  Tick-per-beat resolution
          frequently found in MIDI files.

          See  ADROL1.EXE, ADROL2.EXE,  and ADROL3.EXE  for self-extracting
          libraries of  over forty  files  as examples  of the  converter's
          work.   Very large files can  be converted.  So far  no MIDI file
          has  been  found to  be  too  large for  the  converter, although
          theoretically one could be.  Pieces 16-20 minutes long are easily
          converted.

          The output files  are fully compatible with  AdLib's Composer(tm)
          program  for editing.  They  can be used  wherever .ROL files are
          used (Composer(tm), JukeBox(tm), PopTunes(tm)).

          In a test  of over 50 MIDI  files, the converter produced  useful
          conversions  for  over  85%  of  the  files.    The  unsuccessful
          conversions fell roughly  equally into  2 categories: junk  music
          and too complex music.  Junk means it was bad to begin with.  Too
          complex means  the files  required too many  voices, often  20-30
          voices versus AdLib's 9-11.

          This is an excellent tool for any AdLib user who wants to collect
          music for playback on their AdLib boards.  Editing files is slow;
          converting files is  fast.   If you purchase  shareware disks  of
          MIDI files, the price is under 60 cents per useable tune.   There
          is a wide  assortment of MIDI  music available,  and the work  is
          generally more ambitious work than AdLib users typically see.

          The converter is also a good tool for MIDI users who want to  tap
          this market with their work.

          You can scan the file to get a report of the contents to help you
          plan your conversion.   You also  get rolplayr.exe, a program  to
          play .ROL files  without the burden  of a graphics interface  for
          easier testing.   Multi-track files  are no problem.   Tempo  and
          tick-per-beat can be adjusted.  Patch-to-instrument mapping gives
          you control over  the instrument  selection for program  changes.
          Volume control is also supported.

          The  converter  costs $25.00  (Fla. add  $1.75  tax).   A 30-page
          document is included.  Specify disk size.  Hard disk recommended.

                                 Patch Panel Software
                                 11590 Seminole Blvd.
                                  Seminole, FL 34648
                                     813-397-3530
