Acoustics - best practices for reducing volume

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    David Kaplan

    I believe the answer is "add sound reducing panels."  The other two methods would be beneficial to prevent the transmission of sound from the source space to the surrounding spaces, but they would not have any effect on reducing the volume of the sound in the space itself.  The sound-reducing panels on the other hand would absorb the sound in the space, thus deadening the volume level some. 

    Hope that helps.

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    Anson Nickel

    Agree with David above.

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    John McLoughlin

    Thanks!

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    Theodore Diamond

    I agree, but would say that this is one of those questions where wording is critical.  For sound passage, sound reducing panels would be the least effective option shown here.

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    John McLoughlin

    If the question was flipped, and the concern was an adjacent space and sound passage...would the answer be seal penetrations?  Or is it more effective to add insulation?

     

     

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    Mandel Cameron (Edited )

    I have seen "bring the wall up to the structure above" as the #1 answer to reduce sound transmission though a wall and "seal penetrations" as the #2 answer. 

    I have been trying to figure out if neither of those answers are given, what works best to increase a walls STC rating?

    - add another layer of drywall

    - add cavity wall insulation  

    - stagger the wall studs

    - double the wall studs

    From this website I think the answer is double the stud walls, anyone know if that's correct?

    https://noiseengineers.com/improve-wall-stc/

     Thanks!

     

     

     

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    Jingyu Lee

    Mandel, I do not know what would be the next best for STC... But I will go more for "stagger the wall studs."

    I get a little confused if insulation does anything with sound absorption or STC. According to BCI, I don't see insulation. 

    Can someone shed light on if insulation does anything to acoustic absorption or STC?

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