Creative CT4180 Getting Started Guide - Page 24

SOUND Environment Variable, SOUND, BLASTER=A220 I5 D1 H5 P330

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SOUND Environment Variable The SOUND environment variable specifies your audio software directory. The syntax for this variable is as follows: SOUND=path where path is the drive and directory of the audio software (for example, C:\SB16 or C:\VIBRA16). No space is allowed before and after the equal sign. BLASTER Environment Variable The BLASTER environment variable specifies the base I/O address, IRQ line, and DMA channels of the audio interface. Its syntax is: BLASTER=A220 I5 D1 H5 P330 E620 T6 The values shown above may be different for your system. No space is allowed before and after the equal sign. However, there must be at least a space between parameters. The parameters in the command and their possible default values are as follows: This Parameter Specifies Axxx Audio interface's base I/O address. xxx defaults to 220. Ix IRQ line used by the audio interface. x defaults to 5. Dx Low DMA channel used by the audio interface. x defaults to 1. Hx High DMA channel used by the audio interface. x defaults to 5. Pxxx MPU-401 UART interface's base I/O address. xxx defaults to 330. Exxx Advanced WavEffects synthesizer chip's base I/O address. xxx defaults to 620. Tx Card type. x must be 6. The parameters in bold apply only to Sound Blaster SB32 and the AWE line of audio cards. A-4 Understanding the Installation

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A-4
Understanding the Installation
SOUND Environment Variable
The SOUND environment variable specifies your audio software
directory.
The syntax for this variable is as follows:
SOUND=
path
where
path
is the drive and directory of the audio software
(for example, C:\SB16
or C:\VIBRA16).
No space is allowed before
and after the equal sign.
BLASTER Environment Variable
The BLASTER environment variable specifies the base I/O address,
IRQ line, and DMA channels of the audio interface.
Its syntax is:
BLASTER=A220 I5 D1 H5 P330
E620
T6
The values shown above may be different for your system.
No
space is allowed before and after the equal sign.
However,
there must be at least a space between parameters.
The parameters in the command and their possible default values are
as follows:
This Parameter
Specifies
A
xxx
Audio interface’s base I/O address.
xxx
defaults to 220.
I
x
IRQ line used by the audio interface.
x
defaults to 5.
D
x
Low DMA channel used by the audio interface.
x
defaults to 1.
H
x
High DMA channel used by the audio interface.
x
defaults to 5.
P
xxx
MPU-401 UART interface’s base I/O address.
xxx
defaults to 330.
E
xxx
Advanced WavEffects synthesizer chip’s base I/O
address.
xxx
defaults to 620.
T
x
Card type.
x
must be 6.
The parameters in bold apply only to Sound Blaster SB32 and
the AWE line of audio cards.