The brain uses phase at low frequency and amplitude at higher frequencies to find the direction a signal is coming from. It works better for low frequencies than high when you have a steady tone, but high frequency positioning is better when the signal is pulsed. It is almost impossible to locate the source of a continuous high pitch tone in a confined space because of standing waves. My boat has a piezo buzzer to indicate low oil level. It was completely impossible for me to tell if it was located in the engine compartment or under the dash, or anywhere else, even though the cockpit is wide open. It turns out it was in the engine controller, to the right of the driving position. Someone had to tell me.
Didier KO4BB Sent from my BlackBerry Wireless thingy while I do other things... -----Original Message----- From: Dan Kemppainen <[email protected]> Sender: [email protected] Date: Thu, 10 May 2012 16:16:44 To: <[email protected]> Reply-To: Discussion of precise time and frequency measurement <[email protected]> Subject: Re: [time-nuts] Clocks for Audio gear Don't forget the human mind can compensate for a lot of things. Think of how we can triangulate a sound source in realtime even with the included echos in a small room. The only thing that I can think of that messes with that system is a single tone setting up standing waves. It's impressive if you think about it. So, it's probably not much of a stretch to imagine the mind compensating for a little movement here and there (since we have controls and feedback to monitor that). It may just take a few thousand years for us to evolve to deal with distortion due to jitter in our digital recordings :) All fun aside. This has been a worth while thread in my opinion. I'm learning more this week, than others watching this list! On 5/10/2012 1:49 PM, [email protected] wrote: > I've alway have thought that if nanosecond level jitter is "bad" then > breathing while listening must be really bad. If you inhale the path > length from your ear to the speaker changes at the microsecond level. > You'd think the resulting doppler shift would drive these audiophiles > nuts. All that pitch shifting. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
