Wheatstone Corporation WheatNet-IP Blade3s, Техническое руководство

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W H E A T N E T - I P N A V I G A T O R G U I
page 4 – 44
WheatNet-IP / Apr 2009
It all sounds more complicated than it is, but most folks will just use the automatic
system defaults and not bother with any of this initially, at least until they need to define
some logic signals. Don’t be afraid to experiment with defining signals. You can always
edit back any changes you make, and if you really get things out of whack, you can just
rerun the System Startup Wizard for the BLADE and start over.
Meters
The bottom portion of the “Sources” tab window, as mentioned before, shows the
input channel meters and gain settings. The 16 individual baragraph meters show audio
levels for the individual channels color coded over a 40dB range, with the highest level
being “+20” VU, corresponding to +24dBu, 0dBFS, and the onset of clipping. These
meters show the actual input signal level as modified by the input gain setting. The
bouncing bar at the top shows the peak audio level while the solid column shows the short
term average audio level using VU time constants.
Below the baragraph meters are individual slider controls for adjusting each
channel’s gain or loss over a range of +/-18dB. The slider handle, or knob, moves to
indicate a relative gain setting as you drag it with your mouse, and the text box below
the slider updates with the specific gain value. If you prefer, you can drag your cursor
over the number in the text box to highlight it and type in the gain value you want. The
gain adjustment is made in real time and will reflect instantly on the bargraph meters.
The system rounds off gain settings to the nearest 1/10th dB.
If the signal is defined as stereo a balance control will be displayed to the right of the
level control. This control allows you to adjust the balance of the left and right stereo
signal. The adjustments can be made by left clicking and holding the control while
moving the cursor in a circular motion. If you prefer, the arrow keys can also be used to
make this adjustment. Like the level control, you can highlight the number in the text box
and set the balance level with “0” being center. The balance adjustments are also made
in real time and will reflect instantly on the bargraph meters.
Please note that any gain modifications you make to a source signal will affect the
level of that signal everywhere in the system it appears. If you are making a gain
adjustment to compensate for one particular destination only, it might be better to make
a destination gain adjustment (more on this in the next section) and leave the source gain
alone for correct use in other parts of the system. Source gain adjustments are best used
for input signals known to be too hot or too low, to bring them to the nominal system
signal level of 0VU, +4dBu, -20dBFS.
WheatNet-IP / Jan 2010