Axis Communications P1346 Security Camera User Manual


 
AXIS P1346 Network Camera
Video and Audio
For more information about these settings, please see the online help .
Audio Input
An external microphone or a line source can be connected to the product’s Audio-in connector. Congure the audio input s ettings
under Video & Audio > Audio Settings.
Source - Select Microphone for an external microphone or Line for a Line in device, e.g. an audio mixer for multiple microphones or
a microphone with a built-in amplier.
Microphone power - The Enable microphone power option provides DC power for a n external microphone. Microphone power should
only be used with microphones that have no battery and when using the internal microphone. This setting should not be enabled
when using a dynamic or battery powered microphone. Microphone power will not harm the microphone; if you are uncertain, try
switching it off and on. To use a professional microphone requiring 48V phantom power, you need an external power supply and a
balanced-unbalanced converter (audio transformer) in between.
Input gain - Control the volume (dB Full Scale) of the audio input. If the sound is too low, choose a higher dB, to amplify the
sound. If the sound is too high, choose a lower dB. The Level bar gives a visual representation of the au dio signal level in dB
relative to the full-scale input level.
Green — the signal is at a good level.
Yellow — the signal is becoming distorted.
Red — the signal is distorted.
Encoding - Select digital audio encoding format.
AAC requires a license for both encoding and decoding. AAC is the least complicated a nd most widely used codec.
If achieving the best possible audio quality is a priority, AAC is the recommended codec t o use. An AAC license
is included in the Axis product.
G711
G726
Sample rate - The number of times per second the sound is sampled. A higher sample rate will provide better audio quality, but
also requires a greater bandwidth.
Bit rate - Set the required bit rate depending on the selected encoding. A higher bit rate will give better audio quality. A lower bit
rate may have latency or delay, but will req
uire less bandwidth.
For more information about these set
tings, please see the online help
.
Audio Output
An external speaker can be connected to the product’s Audio-out connector. The output can be used w ith high impedance
headphones or connected to another amplier with speakers.
Congure the audio output settings under Video & Audio > Audio Settings.
Output gain - Control the volume (dB Full Scale) of the line audio output. If the sound is too low, c hoose a higher dB. If the
sound is
too high, choose a lower dB.
Audio Clips
An audio clip is a sound le that can be played either when an event occurs or manually from the Live View page. Audio clips can
be uploaded to the product or recorded by a microphone connected to the product.
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