How To Choose Audio Input Type - Axis V5925 User Manual

AXIS V5925 PTZ Network Camera
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Autotracking
With autotracking, the camera automatically zooms in on and tracks moving objects, for example a vehicle or a person. You can
manually select an object to track, or set up trigger areas and let the camera detect moving objects. The application is best suited for
open areas with no obscuring objects and where movement is unusual. When the camera doesn't track an object, it returns to its
connected preset position.
Important
• Autotracking is designed for areas with a limited amount of movement.

How to choose audio input type

Unbalanced inputs are the most commonly used as they are affordable, easily available and compatible with most inputs thanks to
the 3.5 mm connector. Use the Unbalanced line input for signals coming from a media player or computer.
However, some considerations need to be made when installations require a longer cable between the source and the camera, or if
there is interference from external sources. This is because the cables can act like an antenna and pick up unwanted noise and
interference from external sources such as power cables or even wireless devices. Always make sure that your unbalanced cable is no
longer than it needs to be, and plan the cable run carefully. For example, do not run them parallel to other cables, especially power
cables. This is especially true for unbalanced microphones as all microphone level inputs need to be amplified considerably, resulting
in the amplification of the unwanted noise and interference. Most small unbalanced (electret type) microphones require a small
voltage to power them. In this case, select the Powered unbalanced microphone option.
When longer cable runs are required, and if your equipment at each end is compatible, using an XLR input with a balanced cable is
highly recommended. Apart from allowing the use of more specialized microphones, this professional system rejects outside
interference, allowing for much longer cable runs. Select the Balanced microphone input when using dynamic type microphones. If
you are using a condenser type microphone, they will typically require a 48 V phantom power supply. This can be provided by the
camera through the XLR connector when Phantom-powered balanced microphone is selected.
To watch this video, go to the web version of this document.
help.axis.com/?&piaId=64202&section=about-applications
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