Potential audibility and side effects of ultrasonic surveillance monitoring of PA and Life Safety Sound Systems
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DOI: 10.1121/1.4989031
Abstract: Ultrasonic surveillance monitoring, to check the operational integrity of PA and Emergency Communication Systems, has been in existence for well over 30 years—particularly in Europe. Since its inception, there has been debate as to the… read more here.
Keywords: potential audibility; surveillance monitoring; audibility side; ultrasonic surveillance ... See more keywords