Axis 212 PTZ-V User Manual page 20

Notes:
• To prevent unauthorized listening, the internal microphone can be disabled by inserting a plug in the Audio in
connector.
• To use a high impedance dynamic microphone, DC power should not be enabled. DC power will not harm the
microphone, but if you are uncertain, try switching it off and on. The default value is DC power enabled. To
use a professional microphone requiring 48V phantom power, you need an external power supply and must
use a balanced-unbalanced converter (audio transformer) in between.
If there are problems with the sound input being too low or high, adjust the input gain for the microphone attached to AXIS
212 PTZ/-V.
Select the desired audio Encoding format: AAC, G711, or G726.
Depending on the selected encoding, set the desired audio quality (Bit rate). The settings depend on the available bandwidth
and the required audio quality.
AXIS 212 PTZ/-V can be set to trigger an event if the incoming sound level rises above, falls below or passes the set value. The
Alarm level is set between 0-100%.
Audio Output - If the sound from the speaker is too low or high, adjust the output gain for the active speaker attached to
AXIS 212 PTZ/-V.
When satisfied with the settings, click Save, or click Reset to revert to the previously saved settings.
Note:
To receive synchronized video and audio, it is recommended that the time settings in the camera and client PC are
synchronized with an NTP Server. This is enabled in the camera under System Options > Date & Time. Please refer to
the online help pages for more information.
AXIS 212 PTZ/-V - Audio Settings
20