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Mid/Side technique

Subject: Mid/Side technique
From: David Carmean <>
Date: Fri, 4 Jun 2004 15:05:57 -0700
So I'm kludging together a mid/side rig with a CAD M-179 for the side
mic, and an AKG C480b with CK61/63/69 cardridges for the mid signal.
I note that the rated sensitivity of the CAD is about 1/2 that of the AKG
CK69 shotgun combo (16mV/Pa vs. 27mV/Pa).  But I also note that there's
a similarly large difference in sensitivity with, say, the Sennheiser
MKh 30 and 60 combo (24mV/Pa vs. 40mV/Pa).

How do y'all set your levels, either while recording or in "post",
to get what you consider the "correct" stereo image?

(I'm also finding that in the "long" configuration, the CK69 + C480b is 
picking up a lot of RF interference from my balcony 400 feet up the 
side of the hills above the San Francisco East Bay area.  I'm going to try 
soldering some caps into the connector at the mic end; my MP2 preamp is 
supposed to be well filtered.)




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>From   Tue Mar  8 18:27:27 2005
Message: 1         
Date: Wed, 29 Sep 2004 12:43:23 -0700
From: Dan Dugan <>
Subject: Re: Vacation snippets

Wow! Great stuff, John!

>I think I like the word "snippet"
>
>Last week Deb and I went on a six day camping trip to explore
>some quieter spots in Oregon.
>
>Near the Strawberry Mt. Wilderness these ravens flew over
>Canyon Meadow.
><http://www.hevanet.com/rockscallop/040921_Ravens.mp3>
>       
>We camped three days at Hart Mt. National Antelope Refuge.
>Here is the afternoon wind in Quaking Aspens along with a Red
>Breasted (I think) Nuthatch.
><http://www.hevanet.com/rockscallop/040923_Wind_Aspens.mp
>3>
>
>Some Mule Deer trampled by around sunset.
><http://www.hevanet.com/rockscallop/040923_MDeer.mp3>
>
>  Two Great Horned Owls spoke at dusk.
><http://www.hevanet.com/rockscallop/040923_GHOwl.mp3>
>
>   A flicker or other woodpecker welcomed the sunrise.
><http://www.hevanet.com/rockscallop/040924_Flicker.mp3>
>
>John Hartog


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>From   Tue Mar  8 18:27:27 2005
Message: 2         
Date: Thu, 30 Sep 2004 13:06:06 -0000
From: "Rich Peet" <>
Subject: Re: 4-channel recordings

It is not a design that should come under my name as I did not invent 
it. It was more of an outcome of a natural progression of what was 
being done by Rob.

Let us know an honest assessment of what you think of that geometry 
as well as what you think of the 183's.

Also, Eric from this group just posted a positive study of the 183's 
for lower noise at lower cost.

Rich

> We recorded with my shoulder-mounted stereo mic array, and managed 
to 
> do seven takes with Rich Peet style (RichPeePhonic? Peet-O-Phonic?) 
> 4-channel surround on two MDs; the shoulder stereo array for the 
> front, and omnis spaced out 40 feet to the left and right. All 
Shure 
> 183s. 



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