Subject: Re: Soundproof room for birds From: "Maher, Rob" <rmaher(at)ECE.MONTANA.EDU> Date: Thu, 2 Jun 2005 14:08:58 -0600Just to clarify: are you looking for sound _isolation_ between a bird chamber and the adjacent area, or for sound absorption _within_ the bird chamber itself (e.g., anechoic)? Good isolation requires one set of construction parameters, while reduction of sound reflections within a chamber requires a different set. If you are simply needing a way to keep sound transmission to/from the room to a minimum and don't care so much about creating an anechoic space then the use of several layers of 5/8" gypsum board with resilient mounting and acoustical caulk at the seams is a good and cheap approach. Mass is generally a good thing for isolation. Good luck, Rob Maher > -----Original Message----- > From: AUDITORY Research in Auditory Perception > [mailto:AUDITORY(at)LISTS.MCGILL.CA] On Behalf Of Michael H. Coen > Sent: Thursday, June 02, 2005 12:51 PM > To: AUDITORY(at)LISTS.MCGILL.CA > Subject: Re: Soundproof room for birds > > > Perhaps you're already familiar with this, but Ofer > Tchernichovski provides > details for building inexpensive avian anechoic chambers, > including his > choice of foam, at: > > http://ofer.sci.ccny.cuny.edu/html/chapt_2.html > > Regards, > Michael Coen > > -----Original Message----- > From: AUDITORY Research in Auditory Perception > [mailto:AUDITORY(at)LISTS.MCGILL.CA] On Behalf Of Jeffrey J. Sable > Sent: Thursday, June 02, 2005 2:21 PM > To: AUDITORY(at)LISTS.MCGILL.CA > Subject: [AUDITORY] Soundproof room for birds > > Dear list, > > We are trying to figure out the best way to build soundproof rooms for > songbird research. We can buy some for about $900 and we > think we might > be able to fill our needs for less. We just need a relatively > small room > (2-3 feet--0.6-1 m--square) The latest idea we've seen is to line > portable food coolers with acoustic foam. My question is what > material(s) are our best options with which to line the "rooms" (with > the possibility of adding more material outside. Ideal properties for > the material include thin, inexpensive, and easy to clean--although we > realize not all may be possible in the same material. We are as > interested in keeping internal sounds in (approx. 70-90 dB) as in > keeping exernal sounds out. Thanks in advance for any ideas! > > Sincerely, > > Jeff > > -- > Jeffrey J. Sable, Ph.D. > Postdoctoral Trainee > Sensory Neuroscience Training Program > Beckman Institute & School of Molecular and Cellular Biology > University of Illinois at Urbana-Champaign > > E-mail: jjsable(at)sigmaxi.org > https://netfiles.uiuc.edu/jjsable/www/ >