[Noisebridge-discuss] Walls - Echo control

jim jim at systemateka.com
Tue Nov 29 17:00:05 PST 2011


    there is sound transmission through the walls--
sound vibrates sheetrock which vibrates studs which 
vibrate rock on the opposite side of the wall. the 
hollow cavities within have resonant characteristics 
that may amplify certain frequencies. the floors 
transmit sound really well, notably bass and high 
frequencies. 
    one good thing is mechanically to de-couple 
noise- and vibration-making equipment (e.g. radial 
arm saw, speaker cabinets) from walls and floors. 


On Tue, 2011-11-29 at 22:40 +0000, Ben Mushol wrote:
> extremely valuable input for consideration.
> 
> So a hanging tapestry becomes much more viable, or if soome baffled foam 
> were acquired it could be decorated before being mounted.
> 
> This whole thing sounds like it will turn into an ongoing process.
> 
> Waste styrofoam from packing could be mongoed at a best buy magic place of 
> stuff or something, painted, cut up and mounted.
> 
> I guess my next question is does anyone have knowledge on sprayguns and 
> have an air compressor for painting foam?
> 
> On Tue, 29 Nov 2011, FireFaerie wrote:
> 
> > Date: Tue, 29 Nov 2011 13:02:31 -0800
> > From: FireFaerie <FireFaerie at psyreal.net>
> > To: 'Ben Mushol' <ben at sixgirls.org>
> > Cc: noisebridge-discuss at lists.noisebridge.net
> > Subject: RE: [Noisebridge-discuss] Walls - Echo control
> > 
> > Echoes are not a result of the space between the drywall boards but rather
> > reflections from the hard wall surface. Placing anechoic material centrally
> > on the face of the wall changes the angle of incidence which leads to
> > reduced reverberation and reflection.  In addition to sound dampening panels
> > other things like hanging rugs, tapestries, hanging art, anything that
> > softens or changes significantly the angle of incidence will reduce reverb.
> > ~K~
> >
> > -----Original Message-----
> > From: Ben Mushol [mailto:ben at sixgirls.org]
> > Sent: Tuesday, November 29, 2011 11:29 AM
> > To: FireFaerie
> > Cc: noisebridge-discuss at lists.noisebridge.net
> > Subject: Re: [Noisebridge-discuss] Walls - Echo control
> >
> > This supercedes mechanical schematic murals..
> >
> > Would drilling a small hole in each wall and filling them with packing
> > peanuts also cancel echoes? Or filling the spaces with a foam A. work and
> > B. be possible in any form with what is available?
> >
> > On Mon, 28 Nov 2011, FireFaerie wrote:
> >
> >> Date: Mon, 28 Nov 2011 20:01:44 -0800
> >> From: FireFaerie <FireFaerie at psyreal.net>
> >> To: noisebridge-discuss at lists.noisebridge.net
> >> Subject: [Noisebridge-discuss] Walls - Echo control
> >>
> >> Noisebridgers,
> >>
> >>
> >>
> >> Now that walls are built the rooms could benefit from echo control. We
> > need
> >> some acoustic ceiling tiles or foam panels to go on the walls to knock
> > down
> >> the echo. I'm willing to build panels and am interested in locating
> > donated
> >> or free materials (being a starving hacker and all). If you have any of
> >> these materials to donate or would like to help manifest this project
> > please
> >> let me know.
> >>
> >>
> >>
> >> DIY Acoustic Panel
> >>
> >> http://www.angelfire.com/sports/RCcars/acousticpanel.htm
> >>
> >>
> >>
> >> Materials Needed:
> >>
> >> Fiber Glass Insulation 3.5" thick
> >>
> >> Peg board
> >>
> >> Wood 3/4" thick x 3.5" wide x 8' long
> >>
> >> Fabric to cover each panel
> >>
> >>
> >>
> >> ~Kaya~
> >>
> >>
> >
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