mid side recording and pro tools q?

[recall]

Hi Guys,

Recorded an acoustic guitar/vocal duo yesterday and as a room mic I arranged mid/side array in between them.

I routed the mid mic to its own channel, and the fig8 side mic to two tracks panned them hard left and hard right and flipped the phase of the left side channel with URS' BLT plug.

It sounds cool, but I'm not sure I've done this correctly. I have a plug in called +matrix as an RTAS which is a mid/side decoder but it will only work on a multi channel source, so I haven't used this at all

I mean I think I achieved the heightened width and room I was after with the array but would like to hear from you guys how you go about it.

Cheers

iwan

[max cooper]

Originally Posted by recall

I routed the mid mic to its own channel, and the fig8 side mic to two tracks panned them hard left and hard right and flipped the phase of the left side channel with URS' BLT plug.

Exactly how I do it.

[recall]

Cheers Max. I thought I was on the right track. On a side note, I love how this technique works, it really made the performers "fit" into the room and the acoustic space was really defined

[peat]

yep
i used that exact technique today
TLM 103 as the M mic
KM 86 as the S mic

worked really well
it was just a solo acoustic, then vocals over dubbed later

M/S is a great technique for this
purely for the open space it gives
and the control of that open space

i think you matrix plug in
is for splitting a stereo source into its M and S components
i use this for doing some basic mastering in protools

[Jack Ruston]

In your initial post you dont mention converting back to stereo, which you have to do to monitor it...perhaps you're automatically doing that by having everything routed to a master fader??

J

[max cooper]

Originally Posted by GroovnD313

If you use a plugin to flip the phase, make sure that the sides null when the faders are at the same level. I've found a few plug in's that dont do this like the (digi 7band eq3). You'll have better results going to the audiosuite menu and selecting "invert" This will null perfectly. And use a HPF on both sides to prevent low end cancellation. Check it in mono and make sure you hear no diffrence in volume or eq, all you should hear is your image snap to the center.

good advice; although inverting the signal in the AS menu won't allow you to monitor in M/S stereo.