

| 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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