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1997-03-07
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OSMMAUDA - WIN-OS/2 AUDIO PROBLEMS WITH PAS 16 OR SOUND BLASTER CARDS
01/30/96
=======================================================================
WIN-OS/2 Audio Problems with PAS 16 or Sound Blaster Cards
OS/2 2.1 and OS/2 2.11
=======================================================================
Please Read Entire Document for Full Explanation of Procedures
--------------------------------------------------------------
DESCRIPTION
* Unable to use audio adapter from WIN-OS/2 environment.
* WIN-OS/2 system sounds do not work.
* Audio adapter is inaccessible to Windows or DOS applications.
MMPM/2 for OS/2 is installed and can use the device.
RESOLUTION
Install DOS and Windows device support.
The OS/2 installation does not install DOS or Windows audio-device
support. Some Windows device drivers are shipped with WIN-OS/2, but are
specific to a few versions of the adapters (for example, Sound Blaster
Version 1.0 and 1.5).
You can do the following steps to enable you to use audio from OS/2,
DOS, and WIN-OS/2. The directions apply to the Sound Blaster and Pro
AudioSpectrum 16 cards. Use the diskettes that came with the adapter to
install drivers.
1. Install MMPM/2.
2. Open a DOS session; then using the diskette for the adapter, run the
DOS Installation program:
* For Sound Blaster, the installation program is INST-HD.EXE.
* For Pro AudioSpectrum 16, the installation program is INSTALL.EXE
and is on the diskette labeled PAS 16 Install Diskette.
Depending on the adapter and installation utility level, the
installation program might install the WIN-OS/2 drivers too. If this
happens, skip step 3.
3. Close and exit the DOS session.
4. Open a WIN-OS/2 session; then using File Manager, execute the
program from the diskette to install Windows drivers. For Pro
AudioSpectrum 16, use SETUP.EXE.
5. Close and exit the WIN-OS/2 session.
6. Open a WIN-OS/2 session again. You should have audio.
Notes:
1. The OS/2 PDD, DOS device driver, and WIN-OS/2 driver must access the
device on the same DMA channel and use the same IRQ:
* For 8-bit devices, use DMA channel 1 or 3.
* For 16-bit devices, use DMA channel 5, 6, or 7.
2. When an audio device is being used by WIN-OS/2, the device is not
accessible to MMPM/2. Equivalently, when the device is being used by
MMPM/2, it cannot be used by DOS and WIN-OS/2 sessions.
3. By default, audio in WIN-OS/2 and DOS sessions is considered
optional. You don't want to be prevented from running Windows
applications because you can't play the TADA.WAV startup sound.
4. The DOS property, AUDIO_ADAPTER_SHARING, can change these
requirements. When set to Required, on the first access to the audio
adapter, the session requires the adapter. If it cannot gain
exclusive ownership, an error message is displayed.
______________________________________________________________________
IBM disclaims all warranties, whether express or implied, including
without limitation, warranties of fitness and merchantability with
respect to the information in this document. By furnishing this
document, IBM grants no licenses to any related patents or copyrights.
Copyright (c) 1994, 1996 IBM Corporation. Any trademarks and product
or brand names referenced in this document are the property of their
respective owners. Consult your product manuals for complete trademark
information.