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Gear / Technical Help => Microphones & Setup => Topic started by: acidjack on October 07, 2011, 09:36:19 PM

Title: M/S - if the mics aren't perfectly coincident, how bad is that?
Post by: acidjack on October 07, 2011, 09:36:19 PM

As I threaten to do periodically I'm thinking I may try out M/S for the first time on Sunday.

I happen to not have matching clips, so I may not be able to make the mics perfectly coincident - talking about maybe an inch or two separated. 

How badly would that impact the sound? 

The other alternative I have is using a vert bar and running the 414s laterally rather than the normal way of pointed upwards..

Thoughts?

Title: Re: M/S - if the mics aren't perfectly coincident, how bad is that?
Post by: darby on October 08, 2011, 03:41:59 AM

I used 2 "C" clamps on a stand like this
(http://i1108.photobucket.com/albums/h413/akgmike/4sale/my%20AKGs/14335_1312292807032_1222013789_933942_3435238_n.jpg)
would this help you get them closer?

Title: Re: M/S - if the mics aren't perfectly coincident, how bad is that?
Post by: page on October 08, 2011, 02:21:14 PM

Quote from: acidjack on October 07, 2011, 09:36:19 PM

The other alternative I have is using a vert bar and running the 414s laterally rather than the normal way of pointed upwards..

if that gets them as coincident as the grills/windscreens will allow, I'd do that. The further apart, the more you'll notice the phase cancelation for off axis (or non-triangulated) information.

Title: Re: M/S - if the mics aren't perfectly coincident, how bad is that?
Post by: acidjack on October 08, 2011, 03:23:57 PM

Got it. Unfortunately, out of all the clamps I have, I don't have 2 that will hold 414s as in Darby's photo... I don't think. But maybe I will look again in the mount drawer....  I have 2 superclamps, just worried they will be too heavy on a stand.

Title: Re: M/S - if the mics aren't perfectly coincident, how bad is that?
Post by: flipp on October 08, 2011, 04:54:15 PM

There are numerous ways to mount mics. Check the pics to see if something shown can be done with what you have available or give you one of those Eureka/doh/headslap moments. Vertbar and a super clamp or vert bar and a small t-bar may work for you.

http://www.taperssection.com/reference/images/JasonB%20LD%20Mic%20Configs/

Title: Re: M/S - if the mics aren't perfectly coincident, how bad is that?
Post by: page on October 08, 2011, 04:59:31 PM

Quote from: acidjack on October 08, 2011, 03:23:57 PM

Got it. Unfortunately, out of all the clamps I have, I don't have 2 that will hold 414s as in Darby's photo... I don't think. But maybe I will look again in the mount drawer....  I have 2 superclamps, just worried they will be too heavy on a stand.

if it's just 2 414s and 2 superclamps is all that is on the stand it will hold well enough. I once put a stereo LD mic and a superclamp on a standard issue FOB stand, you just have to keep an extra inch or two at each riser still in the stand and spread the legs a bit more for stability.

Title: Re: M/S - if the mics aren't perfectly coincident, how bad is that?
Post by: SmokinJoe on October 17, 2011, 05:11:06 PM

Since you have my old 414 kit, I'll throw this out there... I think if you use that adjustable Tbar and the plastic clips (not shock mounts) there is a way to just squeak by.  Maybe it works if they are both right side up and you have stubby cables.  I don't really remember, but I think I did it one time.  The long term fix was to find a piece of metal (or wood), and drill two 3/8" holes through it such that the mics are wonderfully spaced in the traditional "one mic inverted" plane.