shop-talk
[Top] [All Lists]

Re: What? I can't hear you.

To: Mark J Bradakis <mjb@autox.team.net>, shop-talk@autox.team.net
Subject: Re: What? I can't hear you.
From: Steve Shipley <shiples@attbi.com>
Date: Wed, 18 Sep 2002 22:37:09 -0700
At 02:55 AM 9/18/2002 -0600, Mark J Bradakis wrote:


>Right now there is just a sheet of plywood between the compressor and
>one of the work benches.  What would be a good material to put on the
>compressor side of the plywood to help cut down on noise - standard
>fiberglass mat insulation, or rigid foam board or open cell foam sheets
>or ???
The insulation absorbs noise but an air gap prevents transmission.
In a standard stud wall faced on both sides with sheet rock, the
stud transmits sound from one side to the other.

One technique to stop transmission in a sheet rock/stud wall is to
frame with twice the number of studs.  The studs are offset to
create the air gap.

Instead of sheet rock on both faces of a stud, you attach the sheet rock
  on one face of a set of studs, and the other face is attached to the
extra set of studs.

Don't know if this applies to a small enclosure, but I hope you get
the idea.

Oh yeah, and the enclosure has to be tight.  Sound gets through
small holes.  I heard this discussed on the Lotus Europa list.  Even
a cable going though a firewall without a tight seal lets a lot of noise
through.

Steve Shipley
Seattle, WA.

///  unsubscribe/change address requests to majordomo@autox.team.net  or try
///  http://www.team.net/mailman/listinfo
///  Archives at http://www.team.net/archive/shop-talk


<Prev in Thread] Current Thread [Next in Thread>