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Mid Side (MS) recording


Established Member
I have an AKGC200B (cardoid condenser) and am buying a Rode NT2-A (multi-pattern) which just happens to have a figure 8 pattern avaiable. If I wanted to set these up for MS recording does my sound card *need* to have an MS decoder, or can I deal with arranging the L & R channels properly after I record the signal, which will be in Soundforge. I have a MOTU 828MKII btw..

What about setup? From what I've read so far the Rode would need to fade left/right with respect to the source, and be set above the AKG which faces the source, both as close together as possible.

Any tips or other info is greatly appreciated.


Sadly, left this world before his time.
You can simply copy your S mic track to an extra track and reverse the phase on the copy. Pan the original 100% left and the out-of-phase one 100% right and make sure their levels are identical in the mix.


Active Member
Oh, and you are correct about the setup. One way you can arrange these mics into a M/S array would be to place the figure 8 above the cardioid at a 90 degree angle in the shape of an upside down L.

For what it's worth, M/S can also be done with three signgle diaphram mics, such as small diaphram condenders by crossing two of them 180 degrees with the heads together (but staggered on the X axis) and the third directly at the source 90 degrees from the others forming a T shape.

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