Axis Communications Fixed Dome Network Camera AXIS P3301-V User Manual

Page 16

AXIS P3301/-V - Video & Audio settings

Audio Input

An external microphone

or a line source can be connected to the Audio in the connector of the network camera. If an external

microphone or line source has been connected, the internal microphone will be automatically disconnected. The audio source
must be set to

Microphone or Line depending on the connected device.

Note:

To prevent unauthorized listening, the internal microphone can be disabled by inserting a plug in the Audio in connector.

The

Enable microphone power option provides DC power for an external microphone. If using a small electret condenser

microphone such as a clip-on microphone or a PC microphone, enable this option.

Note:

To use a high impedance dynamic microphone, do not enable DC power. DC power will not harm the microphone; 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 a balanced-unbalanced converter (audio trans-
former) in between.

If the sound input is too low or too high, adjust the

input gain for the microphone attached to the network camera.

Select the desired audio

Encoding format, AAC, G711, G726.

Select the required

Sample rate (number of times per second the sound is sampled). The higher the sample rate, the better the

audio quality and the greater the bandwidth required.

Depending on the selected encoding, set the desired audio quality (

Bit rate). The settings affect the available bandwidth and

the required audio quality.

The network camera 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 too high, adjust the

output gain for the active speaker attached to the network

camera.

When satisfied with the settings, click

Save, or click Reset to revert to previously saved settings.

Note:

To receive synchronized video in H.264 and audio, it is recommended that the time settings in the camera and client
computer are synchronized with an NTP Server. This is enabled in the camera under

System Options > Date & Time.

Please refer to the help pages for more information.