Thanks Dan, much food for thought. With the ORTF rig do you point it straig=
ht on at the subject or at 90deg. Hey i need to do one of these courses I t=
hink!
Andy
--- In Dan Dugan <> wrote:
>
> > I have always been warned off parabolas since the animals I record (gal=
agos, other primates and hyrax) have low frequency elements and thus I woul=
d need a much larger dish to capture these frequencies.
>
> A parabola will capture them, but it won't amplify them directionally, wh=
ich is the whole point of using a parabola.
>
> > They are however excellent for animals like birds who occupy the mid ra=
nge of frequencies. Have I understood this correctly?
>
> Yes, you have. And be aware that the same laws of physics apply to shotgu=
n mics. They are not directional at low frequencies.
>
> I'm going to make another suggestion: an ORTF pair of cardioid Sennheiser=
MKH 8040s mounted in a single windscreen would give you the most directivi=
ty--by perception. On headphones you would be able to distinguish calls fro=
m different directions.
>
> An MS pair would be easier to rig, but MS lacks the interchannel time dif=
ferences that improve directional perception on headphones.
>
> See the fourth and sixth pictures on http://gregweddig.net/?page_id=3D22
>
> These are Schoeps mics in Greg's rig, but you could do something similar =
with 8040s mounted on a stereo bar. I'd remove the shells from the XLR conn=
ectors on the cables to save space.
>
> -Dan
>
|