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                  Advanced Gravis Computer Technology Ltd.

      Fax (604) 431-5155                   BBS  (604) 431-5927 V32bis
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      AOL: Adv Gravis                      Genie: Page M805 Topic 6
        Copyright (C) 1994 by Advanced Gravis Computer Technology Ltd.
                           All Rights Reserved

=============================================================================

                 Advanced Gravis Audio Engine for OS/2
                 -------------------------------------

List of files in this package
-----------------------------
 AUDPLAY  ICO ........... MINSTALL script information
 CARDINFO DLL ........... MINSTALL script information
 CONTROL  SCR ........... MINSTALL script information
 MIDIPLAY ICO ........... MINSTALL script information
 README       ........... This README file
 TECHINFO DOC ........... A bug reporting form
 ULTRA    HLP ........... MINSTALL script information
 ULTRA    SCR ........... MINSTALL script information
 ULTRA2   SYS ........... OS/2 Audio engine driver
 ULTRADMN EXE ........... OS/2 Audio engine patch-loading daemon
 ULTRALDR EXE ........... OS/2 Audio engine boot-strap daemon
 ULTRARES DLL ........... MINSTALL script information
 VIDPLAY  ICO ........... MINSTALL script information

Description
-----------
 These drivers provide OS/2 multimedia audio support for the Advanced Gravis
 UltraSound line of audio cards.  The drivers support simultaneous playback of
 WAVE and MIDI audio streams through the UltraSound card.

Installation instructions
-------------------------
 To install the drivers, unzip this package onto a floppy disk and run the
 OS/2 MINSTALL utility.  Select UltraSound from the list of installable
 drivers, and respond to the installation program's inquiries about your
 UltraSound.  Once the install script has completed, reboot your machine.

 NOTE: If your UltraSound software is installed in a directory other than
       C:\ULTRASND, you will have to adjust your config.sys file.  Change
       the line:

              RUN=C:\MMOS2\ULTRALDR.EXE C:\ULTRASND\ULTRASND.INI

       to point to the actual UltraSound directory.  Eg, if your UltraSound
       software was installed in D:\SOUND\ULTRA, then change the line to:

              RUN=C:\MMOS2\ULTRALDR.EXE D:\SOUND\ULTRA\ULTRASND.INI

Known limitations
-----------------
 These drivers are ALPHA drivers and, as such, are unsupported by Advanced
 Gravis.  The drivers have the following known limitations, which will be
 addressed in future releases:

  - 44KHz 16-bit stereo WAVE files may play with crackling and popping sounds
    on some machines.

  - MIDI patch loading is optimized for cards with at least 512K of GUS
    memory on board.  UltraSounds with 256K of memory may experience
    performance and sound problems while playing MIDI files.

  - The driver provides no explicit support for DOS sessions.  This means
    that if a DOS session tries to access the UltraSound card, it can, but
    it might corrupt the state of the UltraSound drivers.  To restore the
    state of the drivers, after using DOS audio, try doing the following:

      1) Run ULTRINIT in the DOS box and set up the mixer appropriately,
      2) Run ULTRALDR (supplied with this package) in an OS/2 session with
         the parameter "<Flush>" (quotes required).  This will instruct the
         driver to ignore any currently loaded MIDI patches and to reload
         them when necessary.

Problem reporting
-----------------
 As this is the first Alpha release of the drivers being distributed, it is
 likely that new difficulties ("bugs") with the drivers will be discovered.
 If you discover a problem that has not been addressed in this README, then
 please fill out the TECHINFO.DOC form and e-mail it via the InterNet to:

                         os2.driver@gravis.com

Goodbye
-------
 Thanks for taking the time to try out these drivers.  Look forward to future
 updated releases of these drivers to be released within a short time after
 this release.

 Have a Merry Christmas and/or Happy Holidays, and
 Enjoy using your UltraSound under OS/2...

 David Bollo
 Advanced Gravis