AXIS P1344 Network Camera
Video and Audio
Half-duplex - Audio c an be transmitted in both directions between the Axis product and the client computer, but only in one
direction at a time. You must actively receive sound using the Talk/Listen button visible in the Live View page (see AXIS Media
Control viewer toolbar). In Push-To-Talk mode, click and hold the button to speak and release it w hen done. In Toggle mode, click
once to switch between speaking and listening. The Talk/Listen mode is configured from the Audio tab in the AM C c ontrol panel
(see A XIS Media Control on page 14).
Simplex - Network Camera speaker only - Audio is transmitted from the client to the Axis product and played by the speaker
connected to the product. To send audio, the Talk and Microphone buttons in the AMC toolbar must both be enabled. Click either
button to stop audio transmission.
Simplex - Network Camera microphone only - Audio captured by the microphone connected to the Axis product is transmitted from
theproducttooneormoreclients.
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. Configure the audio input settings
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 o r
a microphone with a built-in amplifier.
Microphone power - The Enable microphone power option provides DC po wer for an external microphone. M icrophone 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 ba ttery 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 a mplify the
sound. If the sound is too high, choose a lower dB. The Level bar gives a visua l representa t ion of the a udio 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. A AC is the least complicated and most widely used codec.
If achieving the best possible audio qua
lity is a p riority, AAC is the recommended codec to use. An AAC license
is included in the Axis product.
• G711
• G726
Sample rate - The number of tim es 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 lo we r bit
rate may have latency or delay, but will require less bandwidth.
For more information about these settings, please see the online help
.
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