Edimax Technology IR-123E - Manual (Page 44)

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Here are the descriptions of every setup item:
Item Description
Enable
Microphone Check this box to enable microphone. If you don’t
want to hear voice from IP camera, you can uncheck
this box to disable it.
Audio Type
(Microphone) The format is fixed as G.711
Microphone
Gain If the voice received by microphone is too loud or
silent, you can use this function to improve voice
volume, so you can hear voice from IP camera more
clearly.
- Select -2 or -1 dB to correct the voice that is too
loud;
- Select 0 dB and IP camera will do nothing on the
voice;
- Select +2 dB to +26 dB to amplify the voice.
Enable Speaker
(Speaker) Check this box to enable speaker. If you don’t want
people at IP camera to hear you, you can uncheck
this box to disable it.
Audio Type
(Speaker) The format is fixed as G.711
When you finish with above settings, click ‘Apply’ button to save changes.
3-7 Motion
This IP camera is capable to detect object’s motion, so IP camera will only
record when there’s motion and save disk storage space.
Motion detection is performed by examine the movement of objects in
rectangular motion detection area. You can define up to 3 motion
detection areas.