AVIXA Updated CTS Exam Questions and Answers by karim

The AVIXA PISCR (Projected Image System Contrast Ratio) standard specifies that the minimum acceptable contrast ratio for "basic decision-making" environments is 15:1, with higher ratios required for analytical and full-motion video content.

“For basic viewing tasks, AVIXA recommends a minimum contrast ratio of 15:1 between full white and full black.”

— ANSI/INFOCOMM 3M-2011 Standard: Projected Image System Contrast Ratio (PISCR)

For mounting a 50-inch monitor on the south wall of the boardroom, recessed lights labeled as D will need to be separated into their own zone to turn them off when the monitor is on. This will prevent glare and reflections on the screen, ensuring a clear and visible display. Axis Technology Specialist documentation supports the necessity of proper lighting control in AV installations to optimize viewing conditions.

The primary design considerations for a projection system in an auditorium include the viewing cone, viewing distance, and viewing angle. These factors determine the optimal placement and size of the projection screen to ensure that all audience members have a clear and comfortable view. The viewing cone defines the area in which the screen can be clearly seen, the viewing distance impacts the size of the text and images, and the viewing angle ensures the image is visible without distortion from various seating positions.

The section with the grayscale bars (bottom row, from white to black)

Brightness calibration is typically done using the grayscale section of a color chart. The grayscale bars provide a range of luminance levels from white to black, allowing the calibration process to adjust the display so that each shade is distinct and accurately represented. Proper calibration ensures that the display shows details in both bright and dark areas of the image, achieving the correct overall brightness.