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Re: Re: Stereo Patterns

Subject: Re: Re: Stereo Patterns
From: Tim Nielsen <>
Date: Tue, 25 Apr 2006 21:46:56 -0700
> I was partial to ORTF before I started this, but now I'm not so=20
> sure. I
> liked the sound of MS-omni in the phones. I realize that when MS-
> omni is
> decoded is should be identical to Blumlein, but it didn't sound=20
> that way,
> probably because of the non-ideal patterns of the mics.

Is that right? My understanding is that an omni 'mid' mic causes the=20
figure 8 to be the source of the stereo, so in effect, MS stereo with=20
an omni mid looks like XY at 180 degrees, two mics pointing away from=20
each other. The amount of the omni signal present varies the apparent=20
pattern between wide-cardiod, cardiod and super-cardiod, depending on=20
the ratio of mid to side. So it's not quite Blumlein, which in=20
effects is still gathering sound from four directions, even though=20
it's only stereo, right?

A very nice test. The AB certainly had the most depth. The MS tests=20
were nice, the cardiod version being the most uniform to my ears. I=20
would pick those two as the favorites.

Tim


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