Thanks, Lee. I'll certainly check that one out. Typically, for very
low freq stuff, I've been using my hydrophone for both marine and
airborne signals. Not terrific solution, but it seems to at least
capture the moment absent other options.
Bernie
>--- In Wild Sanctuary <>
>wrote:
>snip
>>> of infrasound which we couldn't actually hear but could only feel
>> resonating throughout our bodies. I figure it was somewhere around
>12
>> - 14Hz given the periodicity. It was, as they say in the
>vernacular,
>> an awesome moment. Seemingly coming from everywhere, >
>> Bernie Krause
>>
>Bernie, There are several arrays around that would have probably
>picked up such a sound if you knew the exact time. They are used for
>nuclear weapons detection, but also pick up small asteroid
>explosions, surf, rock and snow slides, wind noise over the
>mountains, etc. See inframatics.org
>
>I hope to have such a microphone sometime but the only ones I have
>found are now sold by the U of Alaska and are probably beyond my
>financial means. See specs at
>www.chaparral.gi.alaska.edu//Model2Senson.html
>also www.seismo.berkeley.edu/seismo/annual_report/ar99_00/node11.html
>
>I read some where that these types of "sounds" are on the border
>between sound and weather. :-)
>
>Lee Benson, Indianapolis
>
>
>
>
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
>
--
Wild Sanctuary
P. O. Box 536
Glen Ellen, CA 95442
t. 707-996-6677
f. 707-996-0280
http://www.wildsanctuary.com
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