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Posted by William Davis on 06/03/06 18:13
In article <k5-dnYUuJeWHMh3ZRVn-gg@comcast.com>,
Rick Merrill <rick0.merrill@NOSPAMgmail.com> wrote:
> William Davis wrote:
>
> >>>I don't mean to knock shotguns: In a very limited number of
> >>>circumstances, they are the best choice; but too often, they seduce the
> >>>user into making the lazy choice. ACAP is better at least 99% of the
> >>>time.
> >>>
> >>>Hey, you're a cable access guy, aren't you?
> >>>
> >>
> >>If fooling with cable access were like fooling with guns I'd have no
> >>toes left!-)
> >>
> >>I confess I'm enamored of the "zoom mic" that reads the camera zoom
> >>setting to adjust it's own setting. The perfect application IMHO is
> >>audience interaction of a medium sized room where all the participants
> >>think, "ve don't need no stinking mic".
> >
> >
> > Rick,
> >
> > The fundamental truth is that all microphones must obey the laws of
> > physics.
> >
> > The inverse square principle governing the amplitude of sound waves over
> > distance tells us that as you move ANY microphone further from the sound
> > source, the sound pressure level will drop off sharply.
> >
> > So called "zoom" microphones simply roll off low frequency information
> > (which is inherently less "directional" while boosting the mics GAIN in
> > an ATTEMPT to compensate for distance.
> >
> > Next time you "zoom" in on one of these, pay attention to the upper
> > frequency HISS they add to your signal.
> >
> > "Low end rolled off and gain increased to the point of extra hiss" may
> > SOUND something like you're "zooming in" but it isn't.
> >
> > It's the audio equivelent of "digital zoom" on a lens. Something I'd
> > describe as "trading the appearance of being closer for a crappier
> > signal."
> >
> > Until you can break the laws of physics, the one thing you can do to
> > create the best signal to noise characteristics of any mic, is to move
> > it as close as possible to the sound you want it to record.
> >
> > Period.
>
> I'll have to recruit you to run a boom mic for me. That'll be great!-)
Sure.
All you need to so is shoot out here in metro Phoenix and do it at a
date and time when I'm not committed to doing something else and I'd be
happy to lend a hand.
(tho, with my schedule, it might be just a bit hard to find that second
part!)
Unfortunately, if that were to happen over the next four months, you'd
also need to be willing to shoot your project in 110 degree temps -
something we long time desert dwellers try to avoid, if at all possible!
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