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August 2011

STC stands for ''Sound Transmission Class.'' This is a single-number rating that is used for comparing the acoustical isolation that different barrier materials can provide.  Unfortunately, the process used to determine the ‘official’ STC of a material is a lot more complex than that single number might suggest. Just know that a material’s ability to block sound is measured at several frequencies in the middle range of human hearing, and some performance variation at different [...]
August 25, 2011
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