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EXAM: AVIXA CTS-D: Loudspeakers Test with Verified Solutions $11.49   Add to cart

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EXAM: AVIXA CTS-D: Loudspeakers Test with Verified Solutions

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EXAM: AVIXA CTS-D: Loudspeakers Test with Verified Solutions Distributed Loudspeaker System CORRECT ANS-Employs multiple loudspeakers that are separated by some distance from each other. This is most commonly done by placing them in the ceiling above the audience area. loudspeaker polar pa...

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  • September 3, 2024
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EXAM: AVIXA CTS-D: Loudspeakers Test with Verified
Solutions
Distributed Loudspeaker System CORRECT ANS-Employs multiple loudspeakers that are

separated by some distance from each other. This is most commonly done by placing them in

the ceiling above the audience area.




loudspeaker polar pattern directivity CORRECT ANS-how much area a selected

loudspeakers will cover, typically in ballon plot format representing a specific frequency

response




Coverage is typically stated at the 6 dB down points with 5 degree markings




Speech Reinforcement typical loudspeaker frequency rating CORRECT ANS-2000 Hz (2 kHz)




What two items do a loudspeaker polar chart indicate? CORRECT ANS-1. The radiated

energy of a loudspeaker at a given frequency in either the vertical or horizontal plane. Energy

radiates outward - but not equally - in all directions from the loudspeaker, and polar plots are

used to show the pattern of the energy.


2. The degree off-axis where the radiated energy decreases by 6 dB as compared to the on

axis level. These locations are referred to as the, "6 dB down points." Most often, the

coverage pattern in equipment specifications is typically stated at the 6 dB down points.

, EXAM: AVIXA CTS-D: Loudspeakers Test with Verified
Solutions

Loudspeaker Coverage Formula CORRECT ANS-This is the formula for the diameter of the

circle representing the coverage area of a loudspeaker:




D = 2 * (H - h) * tan (C∠ / 2)




Where:




D is the diameter of the coverage area


H is the ceiling height


h is the height of the listeners' ears


C∠ is the loudspeaker's angle of coverage in degrees.




What are common arrangements for distributed ceiling systems CORRECT ANS-1. Full

overlap


2. Edge-to-Edge


3. Minimum Overlap

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