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Re: X-Y -> M-S & Perfect Reversals

Subject: Re: X-Y -> M-S & Perfect Reversals
From: "Walter Knapp" waltknapp
Date: Tue Mar 13, 2007 8:39 am ((PDT))
Posted by: "Rob Danielson"

> I'm pretty sure that most recordists on this list do use M-S plugs,
> some simple and some complex.

That's because most of us don't have a mixing board or other such
specialist studio hardware. A plugin is far cheaper and far less mumbo
jumbo than hardware. The usual description of a hardware based solution
is purely academic, more historical than real.

> I truly do hope that there are plugs that will allow for adjustments
> of side and mid gain and other variables that will also allow a
> recordist to undo these adjustments and access a file or digital
> mixing state that is very close to the original field recording.

I use the free MDA Image plugin for M/S decoding, and it has not only
adjustments for each mic, (gain & pan), but goes either direction.

> Maybe someone can figure out something I'm doing wrong, or maybe
> someone will find ways to do a "perfect reversal" when non default
> plug settings are used. I hope so, because there are many useful
> applications.  Rob D.

If you are "reversing" a non M/S recording you don't have a original and
are reversing to imaginary M/S mics. I'm not sure how you would define
perfect in that case. Or if it's even a concept that matters.

And if you recorded it with a M/S setup and did it properly you have a
original M/S recording in your archive, so no need to reverse it, start
over with a fresh copy of the original.

Walt




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