AXIS P5415-E PTZ Dome Network Camera
Video and Audio
Each stream profile is a separate video stream. To include the audio stream in all stream profiles, go to the audio tab in each stream
profile settings page and enable audio. For more information, see
About stream profiles on page 18
Audio Modes
The Axis product supports the following audio modes:
•
Full duplex –
Simultaneous two-way audio allowing the Axis product to transmit and receive audio at the same time.
There is no echo cancellation; if feedback loops appear, try moving the microphone or the speaker.
•
Half-duplex –
Audio can be transmitted to and from the Axis product but only in one direction at a time. To transmit
audio using the Live View page, use the
Talk
and
Listen
buttons, see
.
•
Simplex – Network Camera speaker only -
Audio is transmitted from a client to the Axis product and can be played by
a speaker connected to the product. To transmit audio using the Live View page, the
Talk
and
Microphone on
buttons
must both be active, see
•
Simplex – Network Camera microphone only -
Audio captured by the product microphone is transmitted from the
Axis product to one or more clients.
To set the audio mode, go to
Video & Audio > Audio Settings
and select the desired mode from the
Audio mode
drop-down list.
Audio Input
Note
If using unbalanced Line in a mono contact must be used. Signal on tip and ground on sleeve.
Select
Microphone
to use an external microphone or
Line
to use a Line in device, e.g. an audio mixer for multiple microphones
or a microphone with a built-in amplifier, as audio source.
Select the microphone sensitivity level (
High/Low
) depending on the sound level in the monitored area. For example, if the Axis
product is installed in a noisy environment, try setting the input sensitivity to
Low
.
The
Microphone power
option provides DC power for an external microphone.
To use a professional microphone requiring 48V phantom power, you need an external power supply and a balanced-unbalanced
converter (audio transformer) in between.
Use the
Input gain
to control the volume of the audio input. If the sound is too low, choose a higher dB value, to amplify the
sound. If the sound is too high, choose a lower dB value. The
Level
bar gives a visual representation of the audio 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.
Use the
Encoding
option to select digital audio encoding format.
•
AAC
requires a license for both encoding and decoding. AAC is the least complicated and most widely used codec. If
achieving the best possible audio quality is a priority, AAC is the recommended codec to use. An AAC license is included
in the Axis product.
•
G711
is an unlicensed standard codec that is useful when integrating audio into a VoIP system
•
G726
is an unlicensed speech codec that is most commonly used within the security industry.
Note
The
Sample rate
defines 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.
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