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Gear / Technical Help => Microphones & Setup => Topic started by: thunderbolt on September 09, 2011, 10:00:07 PM

Title: Stereo-180 array
Post by: thunderbolt on September 09, 2011, 10:00:07 PM

Anyone ever tried this?  See:

http://sound.eti.pg.gda.pl/student/tn/MicrophoneTechniques_I.pdf  (page 32)

A pair of hypers
Angle of 135 degrees
46 mm apart (this part looks difficult to measure, since it appears to be from the imagined location where the rear lobe pattern starts, not from the center of the caps).

I made a recording over the summer using hypers with NOS configuration, and it sounded damned good.  To my mind, theoretically it shouldn't have sounded that good, but OTOH it makes sense that increased angle/spacing would sound better than <90 degree angle and narrower spacing, with hypers anyway.

So, anyone tried the above array?

Title: Re: Stereo-180 array
Post by: ScoobieKW on September 09, 2011, 10:23:41 PM

using this calculator, the stereo image looks fairly narrow. should work well farther back.

http://www.sengpielaudio.com/Visualization-ORTF-E.htm

select supercardioid, plug in your numbers for width and angle and look at the grey area.

Measure / estimate the angle between the left and right side of your sound source (your fist is ~10 degrees) divide by 2 and you get the +- orchestra angle.

For an orchestra angle of 15 (30 degrees total) and 135 degree separation and 45mm you get a fairly spread soundstage.

This is an example of a recording I made with 20 degrees of Orchestra angle at the Tractor Tavern in Seattle. Avantone CK-1 supercardioid caps using the calculator above

http://www.archive.org/details/JerryGarciaCelebration2011-09-03TractorTavern (replaced mp3 sample with LMA link)

Title: Re: Stereo-180 array
Post by: F.O.Bean on September 09, 2011, 10:55:34 PM

Looks interesting. I have ALWAYS had a NOS kwon-style bar for my MBHO's and Schoeps, and I just LOVE running hypers/NOS :) It sounds REALLY SWEET FOB/DFC too. Ive run hypers/NOS everywhere from onstage/stage-lip, to bigger venues, and I ALWAYS get a SMOKIN' hypers/NOS recording, if I was close enough FOB :)

Title: Re: Stereo-180 array
Post by: thunderbolt on September 10, 2011, 06:09:39 PM

Quote from: F.O.Bean on September 09, 2011, 10:55:34 PM

Looks interesting. I have ALWAYS had a NOS kwon-style bar for my MBHO's and Schoeps, and I just LOVE running hypers/NOS :) It sounds REALLY SWEET FOB/DFC too. Ive run hypers/NOS everywhere from onstage/stage-lip, to bigger venues, and I ALWAYS get a SMOKIN' hypers/NOS recording, if I was close enough FOB :)

Good to know I'm not crazy, and that it can yield nice results! 8)

Title: Re: Stereo-180 array
Post by: Gutbucket on September 15, 2011, 10:56:18 PM

Quote from: ScoobieKW on September 09, 2011, 10:23:41 PM

This is an example of a recording I made with 20 degrees of Orchestra angle at the Tractor Tavern in Seattle. Avantone CK-1 supercardioid caps using the calculator above

http://kennedy-williams.net/mp3/andycoe2011-08-0305.mp3

I'd like to hear this but the link's 404.

Title: Re: Stereo-180 array
Post by: ScoobieKW on September 16, 2011, 01:51:19 PM

sorry, pulled it when the LMA started hosting the whole show.

http://www.archive.org/details/JerryGarciaCelebration2011-09-03TractorTavern

Title: Re: Stereo-180 array
Post by: Gutbucket on September 16, 2011, 03:03:44 PM

Thanks, I'll give a listen tonight.