Setting Up and Using the Software 3-11
If you select the Laptop Built-in Audio button
and you are docked, the laptop audio drivers
load, but the sound system does not work. Once
you undock the NEC Versa M, the sound system
functions.
If you select the Docking Station 4000 sound
system and are not docked, two error messages
appear. They let you know the ESS hardware is
not present.
Using DOS-Based Programs
Two sound control utilities are stored on your hard disk
drive when you run the Docking Station 4000 Setup utility.
When using applications that run from MS-DOS, you may
need to change these sound settings.
The following two utilities let you adjust the speaker vol-
ume and change the DMA and IRQ addresses.
n
ESSVOL.EXE — allows you to increase or decrease
the volume of the sound coming from the Docking
Station 4000.
n
ESSCFG.EXE — allows you to change DMA and IRQ
settings if your application requires that you do so.
Only change these settings if you try to run a DOS-based
application and you get no sound or poor sound from the
Docking Station 4000.
Changing the Volume
Change speaker volume settings as follows.
1.
From the DOS prompt, type the following and press
Enter
to change to the DS4000 directory.
cd DS4000
