Blaster Environment Variable; Determining Resources; Selecting The Best Audio Options In A Game - Creative Blaster User Manual

BLASTER Environment
Variable
The BLASTER environment variable
specifies the base I/O address, IRQ line, and
DMA channels of the SB interface. Its syntax
is:
BLASTER=A220 I5 D1 H5 P330 T6
The parameters in the command are as
follows.
This
Parameter Specifies
Axxx SB interface's base I/O
address.
Ix IRQ line used by the audio
interface.
Dx First DMA channel used by
the audio interface.
Hx Second DMA channel used by
the audio interface.
Pxxx MPU-401 UART interface's
base I/O address.
Tx Card type. x must be 6.

Determining Resources

To find the current SB Live! SB16
Emulation resources in Windows 95/98:
1. Click the Start button, point to Settings,
and then click Control Panel.
2. In the Control Panel window,
double-click the System icon.
3. In the System Properties dialog box, click
the Device Manager tab.
4. Double-click Creative Miscellaneous
Devices, and then double-click Creative
SB Live! SB16 Emulation.
5. Click the Resouces tab.
You can use the information in the resource
list to help you configure MS-DOS games for
use with the SB Live! card.
B-4 SB16 Emulation in MS-DOS/ Windows 95/98
The resource list may show three entries of
"Input/Output Range" and two entries of
"Direct Memory Access". They correspond to
the sequence of entries in Table B-1 and Table
B-3. If the number of entries do not match, a
good estimate of the identity of the device is
its I/O address or DMA channel.
To find the current SB Live! SB16
Emulation resources in MS-DOS mode:
1. Switch to your SB Live! DOS driver
directory, that is:
C:
\PROGRA~1\CREATIVE\SBLIVE\DOSDRV
2. Type SBECFG and then press <Enter>.
Note: The MS-DOS driver
must be running for
properly.
Some older games may have difficulty
detecting the SB Live! card at certain resource
settings. Typically, these games would expect
the card to be at a fixed set of resources and
would fail to load if those resources are not
detected. If you have older MS-DOS games
that do not work properly, try changing the SB
Live! SB16 Emulation configuration. Use the
following as a guide:
Problem: Sound Blaster emulation is not
recognized.
Resource: Try switching the SB Emulation
IRQ between 5 and 7, use DMA channel 1,
use SB interface port 220.
Problem: The MPU-401 emulation is not
recognized.
Resource: Try using Port address 330.
Selecting the Best Audio
Options in a Game
Most MS-DOS–based games that provide
sound have some procedure for audio setup.
These procedures generally present you with a
list of popular audio cards or audio devices
from which to choose.
SBEINIT.COM
to work
SBECFG.EXE