ServSwitch Wizard
™
DXS - Digital
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Page 30
5.8.9 Sound control
This option provides a range of options related to the audio capabilities of the Wizard DXS - Digital.
Format
uLaw
- Use when
transmitted data needs
to be minimised - 8-bit
compressed data.
Linear
- Use when
high quality audio
performance is required
- 16-bit uncompressed
(raw) data is
transmitted.
Sample rate
The number of
audio samples per
second (in Hz).
8000 produces less
samples and hence
uses less network
bandwidth. 48000
(48KHz) produces
the best sound
reproduction.
Channels
Allows you to
choose between
Mono and Stereo.
Window size (ms)
The time frame
in which the
unit requires an
acknowledgement
from the remote
viewer when
data is sent. If
acknowledgements
are not received,
the unit will stop
sending audio data
- Click the Restart
Sound button.
Threshold
The level above
which the audio level
should be before it is
considered to be not
background noise
and hence should
be transmitted. A
level of 25 means the
audio input needs to
be above 25% of the
maximum before it is
transmitted.
Min burst (ms)
The time period
for which the
audio input must
fall below the
threshold level
before audio
transmission
ceases.
Transmission
will begin again
as soon as the
threshold level
is once again
exceeded.
Settings can be adjusted to suit transmission characteristics and audio quality requirements (unsuitable audio settings can affect
video quality):
For maximum audio quality:
Format:
Linear
Sample rate:
48000
Channels:
Stereo
For use on slow links:
Format:
uLaw
Sample rate:
8000
Channels:
Mono
Where necessary, adjust the Window size, Threshold and Min burst settings until optimum audio output is obtained.
Restart Sound
Click to re-
enable audio
transmission
following an
automatic
cutout. If cutouts
occur regularly,
try reducing
the sample rate
or format, or
increasing the
Window size
setting.
Halt timeout
Determines
how long to
wait once the
audio input
has stopped
before timing
out the audio
connection.
There are four
options: Off,
Short, Medium
and Long.