Hi David,
when recording with gunmics (Sennheiser K6/ME66) I keep them spaced to
form a 30 degrees V with 16cm spacing on their front. I also tried keeping
them parallel, spaced by 16cm as well. However I don't have a clear idea of
which solution is better? ?¥. With the V I get more stereo effect on the
sources I'm pointing to, but sounds coming from the side may appear more
frontal than their real position. I'd need more testing about these
configurations. Any idea about this issue ?
Gianni
2013/8/9 <>
> **
>
>
> > Dear Dan, I agree with the method you suggest, however my willing is to
> > have a smooth noise to easily see in real-time the coloration of mics and
> > variable mounting options.
> > I'll do some tests with different sources? ?¥. including waterfalls and
> > showers.
>
> Gianni,
>
> I also find using a power spectrum useful to see colourations, especially
> if
> you compare this with a known mic to see what is source sound colouration
> and what is colouration by the mic under test. Look for a "comb effect"
> where the response rises and falls at regular intervals.
>
> With stereo recording, much of the sound is coming in off-axis and with
> directional mics like cardioids and gunmics, the frequency response
> pattern
> often changes off-axis.
>
> Even with a "flat" response, the mic mount, windshield, surrounding
> objects
> and the ground can all produce colourations. A classic colouration is with
> a
> passing aircraft on a mono mic mounted above a hard ground surface when
> you
> get a variable comb filter effect from the ground reflection.
>
> I use crossed gunmics (MKH-416) and if they are set too wide, the
> colouration becomes very audible. Where they win out is the lower
> sensitivity to unwanted sounds and reflections.
>
> David Brinicombe
>
>
>
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