Behind all Cambridge Sound Management's products is our patented Qt Quiet technology™, a low-voltage, distributed audio system that is a generation ahead in sound masking, paging and voice distribution. Qt Quiet technology™ overcomes significant design and installation issues with previous generations of sound masking systems. The result is a technology that is flexible, uncomplicated and effective and can be installed at the lowest cost in the industry.

•	The sound spectrum produced by a Qt Quiet technology™-based system is the ideal sound masking sound as identified by Leo Beranek.
•	Since Qt™ Smart emitters are direct field, located effectively within the target office area, we are able to pre-program the right sound spectrum into the system. We guarantee delivery of the optimal sound spectrum to the targeted workspace—no on-site tuning, re-tuning or programming is necessary.
•	As can be seen in the graph below, to achieve the same AI (Articulation Index) the sound produced by a Qt Quiet technology™-based system is quieter than the sound produced by a typical plenum system (even after extensive tuning).
•	Qt Quiet technology™ delivers more energy in the octave bands that contribute the most to speech privacy (1000Hz, 2000Hz and 4000Hz) and less energy in the lower frequency bands (125Hz, 250Hz and 500Hz) that contribute significantly less to masking speech. The result is a quieter sound for equivalent speech privacy.

•	We achieve superb spatial uniformity by locating miniaturized Qt™ Smart emitters with 170 degrees of dispersion on a 10 by 10-foot grid, assuming a 9-10 foot ceiling. This combination of emitter density and dispersion assures spatially uniform sound delivery as the listener hears sound from approximately 6 emitters at any point in the workspace.
•	A control module produces 4 channels of uncorrelated sound and the Qt™ Smart emitters, with programmed circuitry, automatically sequence through all four channels assuring extremely pleasant and smooth sound by eliminating acoustical interference effects.
Directivity of an Oasis Emitter at 2kHz (Measured by Armstrong Inc.)

•	Since Qt™ Smart emitters are located directly in the target area, system layout and installation is simple and straightforward-unlike with plenum- based systems no complicated design compensations are needed for walls that don't extend to the deck, for open HVAC grills or for other acoustical elements in the associated plenum.
•	Standard CAT 3-computer cable with factory pre-wired plugs snap into the Qt™ Smart emitter pre-wired with standard RJ-45 plugs. Custom length cables are easily made on the fly by any installer.
•	Qt™ Smart emitters are daisy-chained together and creation of separate zones (open plan or private office, large or small) is simple.

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