45 MARS-3100R/S User Manual
Chapter 3 Advantech Central Manager
3.6.1.4 Voice
The fourth tab on Sounds and Audio Device Properties displays the Voice menu
for adjusting audio inputs and outputs when a microphone is connected to the PC.
Figure 3.35 Voice menu
3.6.1.4.1 Test hardware
Click Test hardware to initiate a microphone test that will calibrate the audio levels
from the microphone to the system, so that peak audio performance is attained.
Follow the onscreen instructions to calibrate the microphone.
Figure 3.36 Hardware test for microphone level
Note! The control settings on the Voice sub-menus, Volume and Advanced,
are identical to those found in the Audio devices, section 3.6.1.1. on
pages 37, 38 and 39.
Note! A microphone must be connected to the computer, or the internal micro-
phone must be activated. (See Chapter 2.8, Connecting Peripherals.)