User`s manual

25
AXIS 282/AXIS 282A - Audio - AXIS 282A only
Audio Channels
Audio mode - This sets the type of audio transmission. The available options are:
• Full duplex - Simultaneous two-way audio. Transmit and receive audio (tal
k and listen)
at the same time.
• Half-duplex - Non-simultaneous two-way audio. Half-duplex m
ode sends and receives
audio in both directions, but only in one direction at a time. This means that you must
actively transmit using the Talk button. When in Push-To-Talk mode, press this button
to speak, and release it when finished speaking. You will now be receiving audio from
the other end of the connection. In Toggle mode, press the button to switch between
talking and listening.
• Simplex - Video Server speak
er only - the speaker connected to the AXIS 282 will play
audio transmitted from any web client. This could be used, e.g. to provide spoken
instructions to a person seen in the network camera. This mode requires you to use the
push to talk button.
• Simplex
- Video Server microphone only - transmits audio from the AXIS 282 to any
web clients. This can be used in remote monitoring, web attractions etc., to provide live
audio from a monitored situation.
When using half-duplex, the Send the sound from the active client to all
other clients
option transmits the audio signal from the talking client to all the other clients.
Audio Input
Source - Select Microphone for an external microphone or Line for a Line in device, for
example, an audio mixer for multiple microphones or a microphone with a built-in
amplifier.
Input sensitivity - When
Microphone is selected for Source (see above), set this to:
• High for an ordinary
(unamplified) microphone, e.g. a computer microphone or clip-on
microphone.
• Low for a
microphone with a built-in line amplifier.
Enable microphone power - Microphone power
should only be used with electric
microphones that have no battery. This setting should not be enabled when using a
dynamic or battery powered microphone.
Input gain - Volume control of
the audio input. The Input sensitivity levels High and Low
are volume settings made earlier in the audio path (see above).
Note:
Low Input sensitivity should never be compensated by a high Input gain, as this may cause unwanted noise.
Encoding - Select the digital audio encoding format to use.
Bit rate - Depending
on the selected encoding, set the required bit rate (audio quality). The
higher the bit rate, the greater the bandwidth required.