I am planning on using this with a field recorder for wildlife sounds in th=
e field...portability is a must have! =A0Thanks.
From: umashankar <>
To: "" <>
Sent: Thursday, December 13, 2012 9:46 PM
Subject: Re: [Nature Recordists] Saul Mineroff Parabolic Reflector
=A0
I had used a satellite dish (the earlier ones which used to be about two me=
ters across) to mike a game show. suspended the dish from the rafters so I =
did not have to hold it up, and it worked amazingly well. the real problem =
was tracking a fast moving presenter.
=A0
umashankar
>________________________________
> From: Avocet <>
>To:
>Sent: Friday, December 14, 2012 7:51 AM
>Subject: Re: [Nature Recordists] Saul Mineroff Parabolic Reflector
>
>My advice would be to experiment with cheap sources of reflectors. The
>original parabolic reflectors used by natural history recordists were
>radar dishes which could be bought cheaply after the War in the
>late 1940's and 50's but these were quite heavy. I agree that spun
>aluminium dishes would be a bit resonant if they weren't backed by a
>stiff layer, but then they wouldn't be lightweight.
>
>The theory suggests that the dish profile is not critical as the
>shorter wanted wavelengths are around 2.5cm (1 inch) - so small
>irregularities wouldn't harm. Even the differences between a parabola
>and a spherical dish are small.
>
>Has anyone tried using discarded satellite dishes? There must be some
>around, but even new ones are not expensive. They are shallower than
>conventional mic dishes, but should still give a good focus and they
>have a focus mount already fitted.
>
>My Brinibox prototype gives a 12 dB gain and the stereo sound is good
>for the money, and it is made out of cardboard. How about a cardboard
>prototype parabolic mic?
>
>David
>
>David Brinicombe
>North Devon, UK
>Cogito cogito ergo cogito sum - Ambrose Bierce
>
>
>
>------------------------------------
>
>"While a picture is worth a thousand words, a
>sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
>
>Yahoo! Groups Links
>
>
>
>
>
>
|