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Subject:Re: Sound Insulation & Air conditioner
From:David Beierl
Date:Fri, 19 Jan 2001 01:17:47 -0500

At 03:42 PM 1/3/2001, Leaf wrote:
>this less painful?  I think the reduction in road
>noise (I hear on average about 3 dB) will be well
>worth the pain.

Rule of thumb -- pretty good one since it's actually how the Belltel
engineers who invented the *bel* and decibel designed it -- one decibel is
just detectable to a careful listener.  Three decibels is easily
noticed.  Ten decibels (one bel) is double or half the perceived volume.

david

David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"

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