[microsound] Zoom H4 tech query -- anybody else?

[John Hudak]

hi john,
i don't have a zoom h4, but i had a marantz pmd660 with which i used a
compact flash midi drive that caused a high pitched whine.  see if you still
get the sound with a plain compact flash.  the mini drives have more memory,
but as far as i have heard, have the tiny whine of a tiny drive.
i hope this perhaps helps.

best,
john

On Sun, Apr 5, 2009 at 9:58 PM, John Hopkins <jhopkins at tech-no-mad.net>wrote:

> Hey folks -- I've been using a zoom H4 for a couple years now, and have
> been suspicious how a non-mechanical recording device -- in a really
> quiet place (for example the Sonoran desert of western Arizona) -- and
> the wave form of a short recording of a passel of birds in a mesquite
> tree at dusk shows a cyclic 3-sec repeating pattern which seems to be
> very low frequency something (sorry, don't have a spectral freq analyzer
> on my machine).  I uploaded a screen shot of the waveform and a wav copy
> of the file -- any feedback?  Has anyone else experienced this with the
> H4?  I've seen it before on the files when recording in really quiet
> places, and of course I suppose the best solution is probably a few
> thousands spent in better field recording equipment, to be sure, but...
>  what could be the cause?     In this instance I was not hand holding
> it, it was on the ground in a stable place, and essentially no wind.
> There is also a higher-pitched whine as well, faugh!
>
> the sound file: http://neoscenes.net/09-03-092_birds.wav and a screen
> shot of the file in Peak showing the approximately 3-second repeating
> patterns http://neoscenes.net/09-03-092_birds.jpg
>
> cheers,
> John
>
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-- 
http://www.johnhudak.net
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