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Quiet. The Neighbors Can Hear You (Sound Control Thread)

Discussion in 'Indoor Growing' started by one2threeBUDS4, Oct 21, 2008.


    Coloradoclear Well-Known Member

    This would be a great thread for anyone to read "before" they spend their hard earned cash and end up disappointed! Lots of great information, Lord knows I have wasted a tons of money on fans and ducting.
    Javadog and Rrog like this.

    TheHero Member

    Hi guys. Is there a nice recipe of materials to build room so it is quiet? Sandwiches like - wooden plates + rockwool + foam etc?

    Rrog Well-Known Member


    BigCityGrow Member

    What's a double stud wall?

    TheHero Member

    Is there a big difference in rockwool or fiberglass? Its messy to work with fiberglass..
    And could I replace drywall with osb wood sheets? Or drywall plays a good role here? Why would glue be used? Screw it all together, thats it..

    As I understand, different materials, different material densities are the key of succesfull sound absorption. So thats why gypsum, fiberglass or rockwool and wood is used, etc.
    Last edited: Oct 27, 2017
    cannetix Inc

    cannetix Inc Well-Known Member

    Not sure if any of these have been posted yet but I have a few suggestions.

    1. Anti-Vibration mats work great under any vibrating components or assemblies. In my experience, even if you don't hear it from your side, vibrations may be more audible on the opposing side of a structure.

    2. FURMAN makes excellent quality power conditioners. Surge protectors only filter out voltage spikes/drops above a certain threshold to protect electronics from damage. Powder conditioners "condition" the supplied electricity and reduce RFI/EMI. I have personally never used one with a Ballast or CO2 injection fuzzy logic controller, however, I do know that "noise" in terms of electronics is generally caused by non-linear loads and both ballasts and fuzzy logic controllers are non-linear loads. I used to have a Furman M-8X2 Merit Series and it worked wonders for reducing electronic noise from my PC and Studio monitors. Power conditioners definitely "work" under the right circumstances, so this might warrant some further research.

    3. While not a direct noise-reduction tip, download TrueRTA. This is a free software which will allow you to analyze the frequency of any given sound. This will help you pick out the most efficient materials for sound control. Different materials interact differently with different frequencies of sound. Very dense materials are great for reducing low-frequency sound & vibrations but will not be as effective against high-frequency electronic noise.

    4. A more intensive approach for larger scale setups may be active noise control. Using a similar software to the one above, the frequency is analyzed and an opposing frequency is generated with a pair of loudspeakers. This is the same way "noise canceling headphones" work. For large scale use (ie. an entire room) it's only really suitable for lower frequency noise that is repetitive and predictable, so depending on your sound source, it might be an option. It is commonly used in commercial airline cabins to reduce the "drone" of the turbine engines.

    Rrog Well-Known Member


    TheHero Member

    So, the trick is not to attach first layer to second? And to do so, second layer of wall needs to be attached to ceiling and ground?

    ANC Well-Known Member

    It is such a nice feeling when the extractor fan goes off after a long grow.
    That sound can grind your soul after a while.

    Javadog Well-Known Member

    For me that was the Air Pump. I made a nice 2" solid wood box for it, one that had the pump
    on a "hammock" made from t-shirt cotton cloth. It worked as well as could be expected....actually
    it did a decent job.

    But there a range of frequencies that seemed to escape all the same. The very low frequencies.

    It was like you could feel it as much as hear it....

    I was happy to make it through a cycle without the Woman getting cranky. :0)

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