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 equalization system (patent pending) 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:
- Measures the room acoustic response
- Measures the background noise
- Calculates 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 automatic equalization process:
- The automatic equalization of the system is done by using a PC
connected to the Smart SMS unit. Upon opening 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 automatically calculates the
room response. The process lasts only a few seconds.
- Then, the Smart SMS measures the background noise level with the same reference microphone.
- Once these measurements are done, the Test Calibration button generates
the exact sound masking1 desired 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 carried out for a specific zone in the
building, which may have different room responses. One Smart SMS unit can use
up to 8 channels for different room acoustic responses.
1The 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 desired masking spectrum by using the Advanced Functions button).
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