AXIS Q1775 Network Camera
Video and Audio
Select the
Yes
option if the Line input or external microphone is
Balanced
.
The
Microphone power
option is available for external microphones. 5V DC power or 12 V phantom power are available depending
on if the microphone is unbalanced or balanced. Microphone power should only be used with microphones that have no battery. This
setting should not be enabled when using a dynamic or battery powered microphone.
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.
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 require less bandwidth.
For more information about these settings, please see the online help
.
Audio Output
An external speaker can be connected to the Audio-out connector (an active speaker with built-in amplifier is required for this). The
output can be connected to another amplifier with speakers. A stereo connector must be used for the audio out.
Configure the audio output settings under
Video & Audio
>
Audio Settings
.
Output gain -
Control the volume of the line audio output. If the sound is too low, choose a higher dB value. If the sound is
too high, choose a lower dB value.
Audio Clips
An audio clip is a sound file that can be played when events occur or directly from the
Live View
page. The audio clip must first be
uploaded to the Axis product or recorded by a microphone connected to the product.
To add, download, modify or remove audio clips, go to
Video & Audio > Audio Clips
. For more information see the online help
.
To configure the Axis product to play audio clips when an event occurs, an action rule must be set up. For more information,
see
Note
Audio clips cannot be used if the product’s audio functionality is enabled. The audio functionality is enabled on the
Audio
tab under
Video & Audio > Video Stream
.
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