Is there a difference between sound reduction and sound attenuation?
Insofar that the terms ‘reduction’ and ‘attenuation’ both mean a decrease or lessening of something, then these expressions describe the same process and are usually interchangeable. In relation to the acoustics of suspended ceilings, ‘sound reduction’ is generally used to describe the ‘single or vertical pass’ decrease (typically from a ceiling cavity to a room below) while ‘sound attenuation’ is reserved for the ‘double or horizontal pass’ lessening in transmitted sound energy where the ceiling is continuous above two adjacent rooms.
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