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Keyboard Control
This option displays a keyboard control dialog and is useful for sending keyboard
combinations (to the host) that are needed regularly or that are trapped by the
AdderLink IP Gold.
When entering codes:
+ means press down the key that follows
– means release the key that follows
+– means press down and release the key that follows
* means wait 250ms (note: if a number immediately follows the asterisk, then
the delay will equal the number, in milliseconds)
It is automatically assumed that all keys specified will be released at the end, so
there is need to specify -Ctrl or -Alt if these keys are to be released together.
See
Appendix 8
for a list of key sequence codes that can be used.
Examples:
‘Ctrl + Alt 12’ would be expressed as: +Ctrl+ Alt+1–1+2
+N means press the ‘N’ key
+Scroll means press the Scroll lock key
+Space means press the space key
Video Settings
see
next page
Click to send
the code
Enter the
code here
Click to take text from
the remote viewer
clipboard and present
it at the host computer
as though it had been
typed there directly
Sound control
This option provides a range of options related to the audio capabilities of the
AdderLink IP Gold.
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
minimised data.
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 increasing
the Window size
setting.