From: Ian Stirling
Subject: Re: Room-wide noise cancellation?
Date: Fri, 6 Sep 2002 06:22:31 +0000 (UTC)
NNTP-Posting-Date: Fri, 6 Sep 2002 06:22:31 +0000 (UTC)
User-Agent: tin/1.5.6-20000803 ("Dust") (UNIX) (Linux/2.4.18 (i686))
In sci.electronics.design Gregory L. Hansen wrote:
> In article ,
> Eric Bohlman wrote:
>>email@example.com (Gregory L. Hansen) wrote in
>>> Any system you set up that creates destructive interference in some
>>> regions will create constructive interference in others. Getting the
>>How much easier, if at all, would it be to simply attenuate the conduction
>>of low frequencies through a particular section of wall?
> Depends on how low. If you're trying to sleep while listening to
> someone's expensive radio or TV, something with big bass, nothing can
> really help. But if the noise you're getting is a PING, like a hammer on
> an anvil, even a pillow should muffle the sound noticeably.
> In principle you could always get industrial sound shielding mats and
> hang them around. But that would be expensive and inconveniant for the
> home enviroment.
You'd probably need to cover all the walls with them, to cope with
The general idea is a layer of dense stuff (lead is good) followed by
a layer of foam or something.
Several layers will greatly reduce noise.
> I don't think there ever really is a good way to deal with noisy
Apart from the oft-mentioned 12-guage, either turning a radio on (either
on a station, or on white noise) can help mask sounds that might otherwise
wake you up.
If it's largely conducted sound (if it largely goes away if you lift your
head from the pillow), then isolating your bed can help.
Foam blocks of the right density (they should crush by about 1/3) under the
bed(legs) may help.
Alternatively, simply take a silicone caulking gun, with the fine nozzle,
and completely fill your ears with it :)
http://inquisitor.i.am/ | mailto:firstname.lastname@example.org | Ian Stirling.
Two fish in a tank: one says to the other, "you know how to drive this thing??"