First, let me say how valuable David Brinicombe's contributions on
this list are. As a longtime recordist myself, I find his explanations
can quantify issues and techniques where I have been content to say "I
use this because I found it works".
A couple of notes on a recent post from David:
>
> I've done a lot of experimentation with my MKH 415's and the cleanest
> stereo is given with the mics crossed so the capsules coincide.
This is good advice, but make sure you know where in the body of the
mike the capsule is! In mikes with an interference tube, the capsules
are not at the tip of the mike, but are down near the slit that is
farthest from the tip. Look into the mike body with a good flashlight
to pinpoint the location of the capsule.
> The
> main stereo image is produced by differential levels (level stereo)
> rather than by time of arrival (time stereo). Blumlein is time stereo.
My understanding of Blumlein is that it is a coincident pair, where
the capsules are as close as possible to the same point in vertical
space. So there should not be time arrival differences, just intensity
differences. Thus in David's terms Blumlein should be level stereo,
not time stereo.
--Flawn Williams
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