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Re: DIY suspenssion and wind protection for mkh 30/30

Subject: Re: DIY suspenssion and wind protection for mkh 30/30
From: "Avocet" madl74
Date: Sun Oct 14, 2012 4:13 pm ((PDT))
> I would like your opinions on the mount and suspension in the two
> photos in the album freitojos.

Jos=E9,

If you are going to use this on a stand or tripod, check the
mechanical noise protection by tapping the stand. If handheld, shake
it gently to see if anything squeaks or rattles. Expect quite a bit of
deep bass rumble due to the fig-8 mics. As they are velocity mics
responding to the velocity of sounds (as opposed to omnis which are
pressure mics responding to sound pressure) any movement front to back
shows up as a low frequency sound input including handling noise.

I would worry that the sharp "ribs" in the cover would cause
turbulence with a left to right airflow. Fig-8 mics are very bass
sensitive to close sounds like turbulence or a close voice. (The
theory takes note that the sound wavefront is spherical not planar)

The golden rule with any windshield is that any outer radius of
curvature must be as large as possible. A bare mic has very small
radii of curvature and is thus very sensitive to wind.

Test the wind noise by moving the rig on a boom or by running with it
or by holding it out of a moving vehicle. Try it at different angles
to a steady wind.

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.



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