Re: [tuning] Reason for Fundamental

At 09:04 PM 9/9/00 -0400, you wrote:
>-------
>I found out today that if you ground the input lead of an amplified speaker
>(by touching it to your skin or a large piece of metal) while the speaker is
>turned on, it will vibrate to some waform with a fundamental of the
>frequency of the AC it is receiving, namely 60 hertz or B-quarter-flat
>as a tuning fork for acoustic instruments. This is such a wonderfully
>obscure and useless benefit that I cannot see any reason to use a global
>tuning other that 60 hertz.
>
>Useless Suggestions by
> Keenan P.
Not at all useless. And, if you have a wave-editing program that allows
generation of specific tones like Cool Edit, than you have a pretty snazzy
set of tuning forks available. And, of course, if you take out your trusty
cacklater you can experimentally find which ballparks various ubiquitous
frequencies that the world generates are close to things you want when
developing tuning schemes. These methods often get "quick&dirty" but that's
better than nuttn.
Incidentally, awhile back there were some posts concerning the availability
of computer noise or lack of same. Gitcherself a common, ordinary telephone
pickup coil, ya know, one of those rich-shaped things that fits around the
shell of the receiver on the earphone end of the thing? Connect that up to a
tape machine or anything that has the sensitivity necessary for a
microphone, and listen to the stuff your computer does! CD recorders are
especially wonderful. And the boot-up sequence is a veritable dissymphony.
Jay >
>
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