[time-nuts] Clocks for Audio gear

[shalimr9 at gmail.com]

"Breathing and heart beat are filtered out and corrected for by the brain,
otherwise we would have difficulties to hear a lot of things."

Interestingly, that works well in our natural environment, but not as well when you are somewhere else.

When free diving (when there is no noisy scuba gear and breathing), you can hear your own heartbeat and so can the fish, sometimes at significant distances as it propagates well under water.

Didier KO4BB

Sent from my BlackBerry Wireless thingy while I do other things...

-----Original Message-----
From: Attila Kinali <attila at kinali.ch>
Sender: time-nuts-bounces at febo.com
Date: Thu, 10 May 2012 23:25:50 
To: Discussion of precise time and frequency measurement<time-nuts at febo.com>
Reply-To: Discussion of precise time and frequency measurement
	<time-nuts at febo.com>
Subject: Re: [time-nuts] Clocks for Audio gear

On Thu, 10 May 2012 11:36:40 -0700
Hal Murray <hmurray at megapathdsl.net> wrote:

> Heartbeats may be more interesting than breathing.  Does anybody know of 
> spectrum domain data?  It should be possible to collect position info while 
> also monitoring heartbeat and chest diameter and then crunch some numbers do 
> see how much of the position correlates with heartbeat vs breathing and then 
> plot each part in the frequency domain.

Please do not forget that there is a quite sofisticated error correction
system attached to the hear, which we usually refere to as "the brain".

Breathing and heart beat are filtered out and corrected for by the brain,
otherwise we would have difficulties to hear a lot of things.
For more infos, please have a look at perceptual psychology. A not too
bad introduction to that field is "Sensation and Perception" 
by E. B. Goldstein.

But please do not expect mathematical rigor in that field. It's still
a subfield of psychology.

				Attila Kinali
-- 
Why does it take years to find the answers to
the questions one should have asked long ago?

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