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Re: High frequency recording

Subject: Re: High frequency recording
From: "gus" leudar
Date: Mon Nov 8, 2010 7:10 am ((PST))
I could be wrong here - but from what I remember of my sound engineering co=
urse the sample rates only allow you to sample frequencies of HALF their st=
ated value. So 44.1 khz allows you to sample up to 22.5khz , 96 khz will al=
low you to record up to 48 khz etc - so the mazimum 192 khz will only allow=
 yoyu to effectively record up to 96 khz no matter how good your mics. Niqu=
ist effects then become involved ... if I remember rightly , as I say it wa=
s a while ago I studied this but its worth checking out to be sure.

--- In  "Christine Hass" <> wro=
te:
>
> Hi,
>
> I'm a biologist interested in obtaining sound recordings of a social
> carnivore, the white-nosed coati.  These raccoon relatives live in the
> tropical and subtropical forested regions, and live in family groups of u=
p
> to 40 (or more) animals.  The are quite vocal, and emit a variety of grun=
ts,
> chirps, and squeals.  Very little analysis has been done on their
> vocalizations, and all of that in zoos where they don't vocalize much.  W=
hat
> has been discovered is that their vocalizations range from 5 kHz to 55 kH=
z,
> posing difficulties for field recording.
>
> I'm new to sound recording, but have been trying to figure out the best (=
and
> most affordable) way to record and analyze these sounds.  I need lightwei=
ght
> but durable equipment, as I may have to hike in long distances to get to =
the
> groups.  I spent some time perusing the old messages on this listserv, wh=
ich
> was very helpful.  It sounds like I might be able to get away with a
> recorder such as the Korg MR-2 or Tascam DR-680.  The messages regarding =
the
> higher range recordings from the "standard" mics, such as the Sennheiser
> MKH20 were particularly interesting, as I thought I might have to hunt do=
wn
> a wideband mic to cover 1-100 kHz.  But I don't want to plop down > $1000
> for a mic to discover it didn't quite cover the range I need.   This is a=
ll
> for analytic purposes, not for producing professional sound recordings, i=
f
> that makes any difference.
>
> I'm looking for suggestions, primarily for mics that will cover the
> necessary range and still be affordable (under $2k, preferable under $1k)=
,
> but I also welcome any other suggestions regarding equipment and techniqu=
es.
>
> Thanks,
>
>
> Chris
> Vail, AZ
>








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