Klarinet Archive - Posting 000147.txt from 2002/11

From: "William Semple" <wsemple@-----.com>
Subj: Re: [kl] Tuners
Date: Sun, 3 Nov 2002 01:38:49 -0500

I think you need 100 clarinets to equal the sound of one trumpet, especially
if you are sitting in front of some of those that play in my band.

----- Original Message -----
From: "Mark Charette" <charette@-----.org>
Subject: RE: [kl] Tuners

>
> Perhaps someone else here does?
>
> ---
> You need to read carefully. The scale is dbVrms, where 0 db references the
> microphone nominal output. 0 db is just a reference level.
>
> If you also check carefully, you will find that some even partials are at
a
> higher level than neighboring odd partials.
>
> "1/2" or "3/8" are irrelevant fractions on a log scale ... the whole idea
of
> using decibels and log scales is to amplify small differences. A 3 db
> difference mean twice the power, a 10 db difference 10 times the power. A
40
> db difference (as in the 1st chart) means a 10,000 times difference.
>
> In a different type of scenario, and extremely simplified, if a trumpet
puts
> out a maximum 90 db sound level and a clarinet a maximum 70 db sound
level,
> you'd need 100 clarinets to equal the sound level of one trumpet ...
>
> Mark C.
>
>
>
>
> ---------------------------------------------------------------------
>

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