Dedicated Micros ©2009
SD Adv
anc
ed
Audio
The Audio menu allows settings for the bi-directional audio channels to be edited. Audio can be
recorded from camera inputs via input 2. Challenge audio i.e.originating from an Operator using
NetVu ObserVer at a Remote Video Receiving Centre (RVRC) can be recorded via input 1. This
combined audio is then available on Audio Output 1. Refer to ‘Installing the SD Advanced for audio
hardware installation information.
Audio Recording
Select ‘Enable’ to activate Audio recording.
Record Audio Challenge
Select this option to record an audio challenge originating from an
operator at an RVRC.
Use
Select the intended use of the incoming audio i.e. ‘Local
Playback’, or ‘Challenge’. Select ‘Disabled’ to deactivate.
Audio Sample Rate
Audio can be recorded at 8Hz, 11Hz, 16Hz or 22Hz.
Record Gain
This option allows the Record Gain level to be set. This is the
base setting from which the AGC (Automatic Gain Control) will
operate. Select from 1 to 15. The default and recommended
setting is 15.
Playback Sample Rate
Audio can be played back at 8Hz, 11Hz, 16Hz or 22Hz.
Playback Volume
Select a volume setting between 1 to 64 for audio playback.
Record AGC
Select this option to activate the AGC function. AGC helps
produce a better quality recording by removing background
noise/distortion.
Record uncompressed
Select this option to record audio in an uncompressed format.
Note:
Recording in uncompressed format will significantly increase the disk space used.
