Advantech PPC-140 - Manual (Page 107)

Chapter 8 Audio 89
8.2.2 Changing settings in DOS
The audio controller settings can be changed in the DOS environment by
using the DOS SETUP utility located in the UTILITY subdirectory of the
CD-ROM. To change the settings, simply type DOSSET at the DOS
prompt. Follow the instructions on screen to choose the new settings for
the ES1869 audio controller.