[Top] [All Lists]

Re: Shotgun microphone - examples

Subject: Re: Shotgun microphone - examples
From: natureguyusa
Date: Sun Dec 14, 2014 7:33 pm ((PST))
Yes David, shotguns definitely have their place. Your recordings are enjoya=
ble and well done. Typically shotguns are used for work less than 20 feet a=
way. Yes, they have a flat frequency response but no gain. Our Professional=
 parabolic mics have 14dB of gain at 1kHz, 25dB at 4kHz. In the range of mo=
st bird sounds 1-10Khz, the gain is from 14-30dB of free acoustical gain. O=
ur Pro units do not have the typical frequency response dip from 500-1kHz a=
s with traditional parabolic mounting setups, but a linear increase from 20=
Message: 0Hz. 
Subject: If you want a flatter frequency response, you could post edit taking i=
nto account the frequency of the subject and atmospheric attenuation at a g=
iven distance to the subject. You should be post editing and adding gain to=
 account for atmospheric attenuation for all distant recordings, which will=
 be adding noise if you aren't using a parabolic dish. Signal to noise rati=
o and subject isolation are key, while you can record birds from a further =
distance with other microphones, the results will be inferior. If you want =
to make a comparison, with a parabolic dish, I have recorded birds, in quie=
t surroundings, from 100-140 meters with a resulting signal to noise ratio =
of greater than 50dB which sounded to my ears as if the bird was 7 meters a=
way. If given the choice between a parabolic microphone and a shotgun for s=
ingle subject nature recording, I would choose to use a parabolic, which is=
 why I developed a parabolic microphone and not a shotgun microphone.=0D
Bruce Rutkoski=0D
professional parabolic microphones

<Prev in Thread] Current Thread [Next in Thread>

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU