[152600] in North American Network Operators' Group

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RE: Cellphones and Audio (was Ghost Click, though I got no idea why)

daemon@ATHENA.MIT.EDU (Brandt, Ralph)
Thu May 3 14:15:12 2012

Date: Thu, 3 May 2012 14:14:25 -0400
In-Reply-To: <10329.1336059187@turing-police.cc.vt.edu>
From: "Brandt, Ralph" <ralph.brandt@pateam.com>
To: <Valdis.Kletnieks@vt.edu>,
	"NANOG" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

As one involved in emergency services I don't gave a rats whether you
can't tell one voice from another.  I do care if someone who is having a
fire, accident, cardiac episode or stroke can get through.=20

The cell companies are worrying about your whim and not the safety.=20

=20

Ralph Brandt


-----Original Message-----
From: Valdis.Kletnieks@vt.edu [mailto:Valdis.Kletnieks@vt.edu]=20
Sent: Thursday, May 03, 2012 11:33 AM
To: NANOG
Subject: Re: Cellphones and Audio (was Ghost Click, though I got no idea
why)

On Thu, 03 May 2012 11:01:01 -0400, Jay Ashworth said:

> In general, though, intelligibility comes from the higher frequencies,
> and 3.4kHz is *usually* high enough.  What might be the case is that
you'd
> have more trouble *distinguishing* amongst women, or between women and
> children, because the tones necessary for that are more located above
the
> cutoff frequency.

I have had more than a few surreal conversations on the phone with my
daughter - once the 3.4kHz filter gets done, I can't distinguish her
voice from
her mom's (and yes, I've gotten social-engineered as a result).  Life
has
gotten simpler since she got old enough to have her own cell phone. ;)



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