Ease of installation is what sets Smart SMS apart from its competitors.
Smart SMS is the only sound masking system that can automatically
adapt to any room or office space by using advanced digital signal
processing.
How Does It Work?
The automatic calibration system (patent pending 2,471,674) is based on the measurement of the room response.
Using the power of the DSP and advanced signal processing, the Smart SMS has an integrated automatic process that:
- Measure the room acoustic response
- Measure the background noise
- Calculate the exact signal to generate the desired sound masking
Download the demo film smartSMS film Basic functions
for a demonstration
This demo film shows the Smart SMS calibration process:
- The automatic calibration of the system is done by using a PC
connected to the Smart SMS unit. At the opening of the Smart SMS software,
the main interface window is displayed.
- By pressing the Start Averaging button, a white noise is generated
by the speakers in the room. A calibrated reference microphone
(included with the Smart SMS software) is used to measure the resulting
noise spectrum in the room, and the software calculates automatically the
room response. The process lasts only few seconds.
- Then, the Smart SMS measure the background noise level with the same reference microphone.
- Once these measurements are done, the Test Calibration button generates
the exact desired sound masking* in the room.
- By moving the microphone around the room, the resulting
sound masking spectrum generated in the room is displayed on
the PC with the real-time spectrum analyzer included in the Smart SMS software.
- If desired, the same process can be done for a specific zone in the
building that may have different room responses. One Smart SMS unit can use
up to 8 channels for different room acoustic responses.
* The default masking spectrum generated by the Smart SMS is the optimum spectrum proposed by Bradley
(Acoustical Design of Conventional Open Plan Offices, Institute for research In Construction, National
Research Council, Canadian Acoustics, vol. 27, No.3, June 2003, p.23) http://irc.nrc-cnrc.gc.ca/fulltext/nrcc46274/nrcc46274.pdf).
However, the user can define and shape the masking spectrum he wants by using the Advanced Functions button).
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