A. Get to Know Your Guardian
We will presume that you have completed the two previous steps with the guides: "DXG IP Set-up" and "Ceiling Installation". Now for the fun part.
B. Most Basic Overview of the Digital eXperience Guardian:
There are three basic steps for monitoring your audio and picture with the DXG:
C. Details - Readings
To take a reading,
D. Details - Comparisons
When the DCP and sequence are complete;
5. More Specific Details
First, The GUI:
Picture Tests
The picture above shows a Guardian user interface ready to take a reading of Auditorium Screen One at the Tijeras Cinemas 16 Multiplex. The sequence will run through white, red, green and blue slides in the Mid-range; that is, several slides of each color, from 80% saturation to 30% saturation will appear on the screen for 1 second each and a reading of their characteristics will be taken and stored for review.
In the standard DCP package, the colors are 16-bit TIFF images with the 12-bit color depth in the P1 color space as specified in DCI/SMPTE/ISO documents. For sync, every other slide is full black. The color slides descend in steps of about 5% of the 12-bit, 0 - 4095 step range. [Why is this important to know? Because, a satellite or cable or blu-ray system doesn't use this same color space or depth and it would not be appropriate to run the same DCP for evaluating those systems.)
There are 3 sets of color DCPs in the standard sequence sets; Low-, Mid- and High-. (Your DCPs may be different, and the standard set may change.)
To run a sequence,
Audio Tests
Audio sequences are much the same; three tones are played into each speaker at various frequencies – 250Hz, 1000Hz and 8000Hz, except for the LFE channel which has 50Hz, 100Hz and 250Hz. The L, C, R channels are played at 85dB when a properly calibrated Audio Processor is set at 7. The surrounds are played at 82dB and the LFE is played at 20dB down.
This DCP is played to establish audio level as well as THD (Total Harmonic Distortion).
This DCP also plays certain pairs of speakers to establish their phase characteristics.
There is a 2nd DCP that plays a 'click' to each speaker which establishes whether each speaker is playing from the correct source.
This User Guide continues with Part F at:
Preparation: Make DCP Playlists and load DXG Programs to your Windows computer.
Load DCPs into your system; Make Playlists
Load the DXG Program onto your computer (if it wasn't done before.)
Finally, let's run the thing, eh?
Options
And explains cools pictures like these: