At 4:05 PM -0800 11/5/05, Dan Dugan wrote:
>Rob Danielson, you wrote,
<snip>
> I can roll-off everything above 1000Hz
> >in a field recording and still retain 90% of the amplitude. If I use
>>shelf filtering to "roll-off" below 150Hz, I'll be left with 10-25%
> >of the sound recorded. Its traditional to "roll off."
Dan Dugan wrote:
>In dialogue or species recording, yes, but not necessarily in ambient
>recording unless it's a matter of survival.
I'll test some files. I'm saying location recordings of distant
sources generally have very high concentration of low frequencies.
Curt Olson wrote:
>But for outdoor ambience, phase
> >>interaction between the mics makes imaging a mess and destroys mono
> >>compatibility every time.
Rob D wrote:
> >If it helps to make this a lower priority, you can use an M-S
>>processing based Stereo Image plug like Waves S-1 in post to achieve
> >mono compatibility when needed.
Dan Dugan wrote"
>M-S processing doesn't work on spaced mics--it's only for coincident array=
s.
These are not M-S encode or decode plugs, its they way they work that
creates the mono compatibility. I can dig up the terminology. They
use a type of signal patching/processing related to M-S that performs
phase correction and mono compatibility along with the other
function(s). I use their S-1 plug on material for broadcast when the
original was recorded with spaced omnis and it seems to address the
most obvious problems fairly well. Rob D.
>-Dan Dugan
>
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