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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.
Enter the
code here
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
Sound control
This option provides a range of options related to the audio capabilities of the
AdderLink IP Gold.
Sample rate
The number of
audio samples per
second (in Hz).
8000 produces less
samples and hence
Click to send
minimised data.
the code
48000 (48KHz)
produces the best
sound reproduction.
Channels
Allows you to
choose between
Mono and Stereo.
Click to take text from
Window size (ms)
the remote viewer
clipboard and present
The time frame in
it at the host computer
which the unit requires
as though it had been
an acknowledgement
typed there directly
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.
Settings can be adjusted to suit transmission characteristics and audio quality
requirements (unsuitable audio settings can affect video quality):
For use on slow links:
Format:
Sample rate:
Channels:
Where necessary, adjust the Window size, Threshold and Min burst settings until
optimum audio output is obtained.
Restart Sound
Threshold
Click to re-
The level above which
enable audio
the audio level should be
transmission
before it is considered to
following an
be not background noise
automatic
and hence should be
cutout. If cutouts
transmitted. A level of 25
occur regularly,
means the audio input
try increasing
needs to be above 25%
the Window size
of the maximum before it
setting.
is transmitted.
For maximum audio quality:
uLaw
Format:
Linear
8000
Sample rate:
48000
Mono
Channels:
Stereo
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.
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.
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