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Re: No sound-inputs but sound recording FMIT

From Gene Heskett <gheskett@shentel.net>
Newsgroups linux.debian.user
Subject Re: No sound-inputs but sound recording FMIT
Date 2017-03-05 21:30 +0100
Message-ID <thKX0-5yk-5@gated-at.bofh.it> (permalink)
References <tgVUu-20d-23@gated-at.bofh.it> <thDCa-gN-27@gated-at.bofh.it> <thKNj-5sV-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Sunday 05 March 2017 15:18:00 GiaThnYgeia wrote:

> Curt:
> > In case this wasn't clear: we're imagining clay being fashioned upon
> > a potter's wheel, and the striations that occur in the clay as it is
> > molded (which might possibly produce, according to Charpak's
> > conjecture, a sort of analog audio recording of ambient sounds in
> > the finished product, e.g.--"Hey Mosche, got any more of that
> > Egyptian beer we were drinking the other day?" spoken in some
> > obsolete language no one has ever heard before).
>
> I don't know about clay, it sounds more probable that prehistoric
> voices affected reflected light to the universe and its returning
> reflection may incorporate data that when decoded may reveal those
> voices.  In other words some prehistoric sounds may not be heard yet.
>
> Back to shanity, how does a microphone produce an electrical wave that
> can be translated into sound and how a wave may take the form of
> electrical current that produces sound through a speaker? 

Very simple. With the glaring exception of the modern AC induction motor 
that in 99% of the stuff we buy, ANY other generator can also be used as 
a motor, including the ultra cheap electret condenser microphones, ditto 
any speaker, including the peizo tweeters, is also a microphone.  Its 
part of the basic physics everything we use works by.

> It is not 
> like particle acceleration science, it is stuff that many guitarists
> now and most guitar repair-persons know.  The question that is
> relevant to the list is why would a security minded system allow such
> noise to be communicated?  Whatever that noise is, it shouldn't be
> there, as if it is there it can be anywhere.
>
> Your appeal for case dismissal is denied!
>
> By the way, it takes about 3' to download FMIT or something similar,
> lower the db cutoffs and increase the frequency range and if it is not
> there we may have something to compare.  I don't readily have a laptop
> with a battery strong enough to stay on without AC, I assume they have
> less electrical noise.  My noise is around 21,5KHz-23KHz with an
> emphasis around 22,2...  which can't be random, but abrupt vibrations
> on the case register within that noise wave.  We are in the 220v/50hz
> world, so it would be interesting what the noise freq. is on 110v/60Hz
>
> ... wait did you hear that?  It is the noise of your world crumbling
> ;)


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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Thread

No sound-inputs but sound recording FMIT GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-03-03 15:00 +0100
  Re: No sound-inputs but sound recording FMIT deloptes <deloptes@gmail.com> - 2017-03-03 20:40 +0100
    Re: No sound-inputs but sound recording FMIT GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-03-04 14:10 +0100
      Re: No sound-inputs but sound recording FMIT deloptes <deloptes@gmail.com> - 2017-03-04 21:00 +0100
        Re: No sound-inputs but sound recording FMIT Curt <curty@free.fr> - 2017-03-05 12:20 +0100
          Re: No sound-inputs but sound recording FMIT Curt <curty@free.fr> - 2017-03-05 13:40 +0100
            Re: No sound-inputs but sound recording FMIT GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-03-05 21:20 +0100
              Re: No sound-inputs but sound recording FMIT Gene Heskett <gheskett@shentel.net> - 2017-03-05 21:30 +0100
                Re: No sound-inputs but sound recording FMIT GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-03-05 23:10 +0100
                Re: No sound-inputs but sound recording FMIT John Hasler <jhasler@newsguy.com> - 2017-03-05 23:20 +0100
                Re: No sound-inputs but sound recording FMIT Gene Heskett <gheskett@shentel.net> - 2017-03-06 01:20 +0100
                Re: No sound-inputs but sound recording FMIT John Hasler <jhasler@newsguy.com> - 2017-03-06 02:00 +0100
                Re: No sound-inputs but sound recording FMIT cbannister@slingshot.co.nz - 2017-03-27 13:30 +0200
                Re: No sound-inputs but sound recording FMIT kAt <giathnygeia@openmailbox.org> - 2017-03-27 17:50 +0200
                Re: No sound-inputs but sound recording FMIT Gene Heskett <gheskett@shentel.net> - 2017-03-06 01:10 +0100
  Re: No sound-inputs but sound recording FMIT Ric Moore <wayward4now@gmail.com> - 2017-03-03 21:00 +0100

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