Click the second web page tab to reveal more advanced Audio/Video Settings (Figure 2-11).
Expanding the Video Settings control group shows additional nested tabs with various Exposure, Picture, White Balance, and Focus options.
A little lower on the page, you can expand the Audio Settings control group (Figure 2-12).
This group includes Audio Input level buttons labeled Line and Mic, along with the Volume slider. The switch at left allows you to completely disable audio output.
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