Page 1 of 2 1 2 LastLast
Results 1 to 10 of 15

Thread: Room Within a room / soundproof help

  1. #1
    Join Date
    Jan 2001
    Location
    Fargo / Moorhead
    Posts
    27
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0

    Room Within a room / soundproof help

    Sign in to disable this ad
    Hello. First off, m studio will be mainly for voice over work for TV & radio.

    I have a small room in the corner of my basement that I have used for years, but I am really starting to take this seriously now and make some $$ with it. What I want to do is build a room within a room so I can block out mainly the furnace sound and secondly kids upstairs.

    My one concern is how much of a different will it make if I just use the existing floor? I can build the 4 walls and ceiling without much hassle, but the floor would be a little more difficult and also give me a lot less space :-)

    The room is concrete floors with carpet over it.

    I am hoping for some good ideas & suggestions.

    Brian

    phlaw23@gmail.com
    Brian Doucette
    Phlaw Productions

  2. #2
    Join Date
    May 2004
    Posts
    656
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    214487
    I built my basement studio on the concrete floor. It is not a "room within a room" build, but it is sound proof as heck. I used resilient channels, dual layers of drywall and sheet-block. I don't think building on the concrete floor was a bad decision at all. You have to remember, you're going to lose a couple inches of ceiling height if you float the floor.

    My furnace is on the other side of one of my studio walls. I don't hear it all.
    Eric

    Practice Your Mixing Skills!
    Mix Our Tracks in Your DAW!
    www.Raw-Tracks.com
    Online Mixing Forum

  3. #3
    Join Date
    Jan 2001
    Location
    Fargo / Moorhead
    Posts
    27
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    Thanks!

    That makes me feel better.
    Brian Doucette
    Phlaw Productions

  4. #4
    Join Date
    Jan 2009
    Location
    Jakarta, Indonesia
    Age
    66
    Posts
    513
    Thanks
    0
    Thanked 17 Times in 7 Posts
    Rep Power
    4192456
    Yes, rarely you should need to 'float' the floor.

    How much transmission loss (in decibels) do you really need? Once we know what your TL goals are, we can suggest a method. Please post the dimensions and current wall / ceiling construction.

    Cheers,
    John
    John H. Brandt Acoustic Designs - ABOUT US - OUR WORK - RESOURCES "Twenty thousand dollars worth of Snap-On tools does not make you a Professional Diesel Mechanic"

  5. #5
    Join Date
    Jan 2001
    Location
    Fargo / Moorhead
    Posts
    27
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    The room is 10 x 12 with 7 1/2 foot ceiling.

    2 of the walls are concrete (poured) the other 2 are sheet rock.
    Brian Doucette
    Phlaw Productions

  6. #6
    Join Date
    Jan 2009
    Location
    Jakarta, Indonesia
    Age
    66
    Posts
    513
    Thanks
    0
    Thanked 17 Times in 7 Posts
    Rep Power
    4192456
    Brian,

    The concrete walls (unknown thickness...) can have about STC-50. If you add a wall and airspace to the ends where you have drywall, it is possible to achieve STC-63 with double 5/8" gypsum on each side.

    We will need to get into serious details if this is what you want to do. Using Green Glue, you should be able to reach 70db or more transmission loss at voice frequencies. Not too bad. Also GG will aid in improving TL below 125Hz in most cases.

    You have a nice working area for voice-over work. ~thumbs up~ Do you plan on having your recording set-up in the same space? If so, it's a bit small - especially if you plan on adding walls inside there...

    Cheers,
    John
    John H. Brandt Acoustic Designs - ABOUT US - OUR WORK - RESOURCES "Twenty thousand dollars worth of Snap-On tools does not make you a Professional Diesel Mechanic"

  7. #7
    Join Date
    Jan 2001
    Location
    Fargo / Moorhead
    Posts
    27
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    The concrete walls are not perfectly smooth/flat so it will be tough to just add walls to them, that is why I was thinking of the room within a room design.

    Everything will be in one space, will record while I am sitting in front of my computer/editing equipment. Only has to be room for me.
    Brian Doucette
    Phlaw Productions

  8. #8
    Join Date
    Apr 2006
    Location
    A-town
    Age
    46
    Posts
    1,992
    Thanks
    1
    Thanked 0 Times in 0 Posts
    Rep Power
    21474851
    I think room-in-a-room is total overkill for a basement studio... I considered it, saw how much it'd cost, how much space I'd lose, etc.. 7 1/2' ceiling? After you float the floor, frame the ceiling, drywall the ceiling, etc, you'll be lucky to have 6 1/2'. I just turn off my furnace and tell the kids to shut up when I'm tracking, hell of a lot cheaper!
    http://www.supr-star.com/ - suprstar studios

  9. #9
    Join Date
    Jan 2001
    Location
    Fargo / Moorhead
    Posts
    27
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    Each concrete wall also has a window that lets noise in. I personally don't care about losing space, and from previous answers don't think I need to float the floor.
    Brian Doucette
    Phlaw Productions

  10. #10
    Join Date
    Jan 2009
    Location
    Jakarta, Indonesia
    Age
    66
    Posts
    513
    Thanks
    0
    Thanked 17 Times in 7 Posts
    Rep Power
    4192456
    Brian,

    My calculations also show mode problems with those dimensions. Can you block the windows? Please post a drawing. Thx.

    I forgot to mention earlier that you can use resilent channel on the ceiling and a couple of layers of gypsum bd w/GG - this will help greatly with TL.

    Cheers,
    John
    Last edited by jhbrandt; 02-26-2010 at 20:19. Reason: oops
    John H. Brandt Acoustic Designs - ABOUT US - OUR WORK - RESOURCES "Twenty thousand dollars worth of Snap-On tools does not make you a Professional Diesel Mechanic"

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. trying to soundproof a room
    By frequency_ in forum Studio Building & Acoustic Treatment
    Replies: 19
    Last Post: 10-03-2007, 13:32
  2. recording in a non-soundproof room
    By rxQueen in forum Recording Techniques
    Replies: 10
    Last Post: 04-05-2006, 12:24
  3. Possible to soundproof a condo room?
    By DenverRob in forum Studio Building & Acoustic Treatment
    Replies: 11
    Last Post: 03-07-2005, 09:03
  4. How would you soundproof this room?
    By fiber in forum Studio Building & Acoustic Treatment
    Replies: 13
    Last Post: 12-22-2004, 11:01
  5. Help me soundproof a townhouse room!!
    By Sir_Smaks in forum Studio Building & Acoustic Treatment
    Replies: 2
    Last Post: 04-16-2001, 22:45

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •