Specifications

converter 1.5
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2000 - 2005 urr Sound Technologies Inc.
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Note that the numbers above are for a specific configuration – they aren’t ‘one size fits all’. You
must use the numbers specific to your system’s configuration.
A bootable floppy could be
created to run converter with its own autoexec.bat, thus avoiding this issue of modifying the
autoexec.bat on your hard drive (see the next appendix).
Assuming you have installed a Windows driver for the card (since you are reading this paragraph), you
can find the specific numbers from the Windows driver by going to your control panel, selecting system,
choosing the ‘device manager’ tab, expanding the ‘sound, video and game controllers’ droplist, and
double-clicking the Gravis Ultrasound item. This should give you a window with several tabbed entries –
click on ‘resources’. Under the ‘resource settings’ listbox, read the following numbers and write them
down on paper to be used for your environment string:
•
the first number of the first entry (input/output range – this is your card’s base address)
•
the fourth and fifth entries (interrupt requests - these are the cards audio and midi IRQs)
•
the fifth and sixth entries (direct memory access – these are the card’s 8 and 16-bit DMA
channels)
Place these numbers in their respective places on the DOS environment string (line of text) in your
autoexec.bat file. The IRQ numbers can be interchanged, as well as the numbers for the dma channels
– if they don’t work for some reason, try switching them around.
SoundBlaster Pro, SoundBlaster 16, SoundBlaster AWE32, AWE64, & 100% compatible
The SoundBlaster series of soundcards have a variety of installation requirements – some are ‘plug and
play’, others are not. The specifics of each soundcard’s hardware configuration is beyond the scope of
what can be covered here; however, often the card will be configured appropriately under Windows (if
used) and the numbers for the environment variable can be sourced from it.
Environment variable:
SET BLASTER=A220 I10 D0 H7 P300 E620 T6
The important numbers after the = sign in the line represent:
base address, IRQ, 8-bit DMA, 16-bit DMA, Midi port address
The E and T parameters are not important in this case, and can be omitted.
Typically, the DOS software installation for this soundcard (either ctcm.exe or diagnose.exe or the like)
will automatically update the autoexec.bat file with the correct parameters. However, if this software
isn’t available, and the card has been configured successfully in Windows9x, the relevant information
can be retrieved from the Windows driver.
Open the Windows9x control panel, double-click on ‘system’, choose the ‘device manager’ tab,
expand the ‘sound, video and game controllers’ droplist, and double-click the appropriate Creative
driver for
audio
(in our case, ‘Creative AWE64 16-bit Audio (SB16 compatible)’ ). This should give you a
window with several tabbed entries – click on ‘resources’. Under the ‘resource settings’ listbox, write
the following numbers down on paper to be used for your environment string:
•
the first entry (interrupt request – this is your card’s IRQ)
•
the second and third entries (direct memory access – the one with a value of 3 or below is the
SoundBlaster’s 8-bit DMA channel, and the one with a value above 4 is the SoundBlaster’s 16-
bit DMA channel)
•
the first number of the fourth entry (input/output rage – this should be the SoundBlaster’s base
address and have a value of something like 220, 240, 260, etc)
•
the first number of the fifth entry (input/output range – this should be the SoundBlaster’s MPU-
401 midi port base address and should have a value of 300, 330, etc).
Place these numbers in their respective places on the DOS environment string (line of text) in your
autoexec.bat file.