Instruction Manual
46
Using the Advanced Video Tuning Feature
The Advanced Video Tuning menu allows you to adjust the qualities
of the video in your VNC sessions, and can be accessed by clicking the
Advanced button on the Video Tuning VNC menu. While many users
will probably allow the SV441DUSBI to automatically configure the video
properties, you can use this menu to exercise a great deal of control over
the settings if you wish.
The Presets section contains up to sixteen different settings, plus the
factory setting. If a number is highlighted, then that preset has been
programmed with valid settings and may be used. Note that the Factory
preset is always available. Simply click on the appropriate button and
those settings will be restored.
To save settings to a preset, click on the Save->Preset button in the
Actions pane. The preset buttons will highlight. Click the desired preset
button to save the values. Note that any previous settings assigned to that
button will be lost. If you do not wish to save the presets after clicking the
Save->Preset button, click the Save->Preset button a second time and
the save function will be canceled.
The section of the screen marked Current Values indicates the various
video parameters that can be adjusted. For each parameter, there are
a series of buttons: [, <<, -, Auto, +, >, ]. The ’[’ and ’]’ buttons set the
parameter to its smallest or largest values, respectively. The ’<<’ and ’>>’
buttons decrease or increase the parameter by a large amount. In the
case of phase, this is 4 units. For all the others, this is 10 units. The ’-’ and
’+’ buttons decrease or increase the parameter by one unit. The middle
button sets the parameter to the middle value. The text of the middle
button also indicates which parameter is being controlled. Note that in the
case of phase, the middle button invokes the auto-phase algorithm.
The Performance section of the screen gives an indication of the quality
of the video. Changes/frame is the average number of tiles that change
for each frame sampled by the hardware. Flatness is an indication of
what percentage of the screen contains tiles that are comprised of only
one color.
