10
3 PC-AD2 - Windows Audio Operation
Fig 3-6: PC-AD2 Microphone Properties/Custom Screen
To adjust the sensitivity of the microphone input, right-click on the
endpoint, select
Properties
and click on the
Levels
tab. The default setting
is -20dB but can be adjusted from 0dB to -60dB. Note that the setting
display can be switched between percentage and decibels by right-clicking
on it and selecting the desired option.
Each microphone endpoint has two additional settings for phantom power
and an audio limiter. To access these, right-click on the endpoint, select
Properties
then click on the
Custom
tab.
Phantom power, when selected, a48V to the microphone input
connections. When the stereo microphone mode is selected, phantom
power is applied to both the left and right inputs, while in dual mono
microphone mode, the phantom power on each input is independently
settable.
The audio limiter automatically reduces the microphone gain if the
recording level approaches clipping. Because of the twelve sample delay
through the A/D converter, the limiter can’t entirely prevent clipping but
will minimise its effects. In stereo microphone mode, the limiter will jointly
act on both channels when either exceeds its threshold, while in mono
microphone mode, the limiters on each channel are fully independent.
Summary of Contents for avn PC-AD2
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