OX Mixing with Live Mics for Recording and Avoiding Phasing Issues

[Guvnor513]

There may not be a definitive answer on this one but I am not overly knowledgeable, so I will defer to you guys here in the forum with more experience. I have put together a recording setup that mixes the OX signal with a mic'd cabinet. I have a couple Slate mics in front of a 1X12 Mesa cabinet with a SE reflection filter (their GuitarF, I think it is called). The IDEA is to be able to mix the direct signals off the floor and mute all but the room sound in the OX software, capturing the OX room for my 'room' sound since I don't have one.

My question is this: does anyone know the distance the OX "room" mics were from the source when modeled/IR'd? And, for the truly technical, how do I mathematically compute the distance my close mics can get from my speaker to ensure proper phase?

Please note - I SWEAR I am not REALLY this anal retentive, and I have made due checking the waveforms and getting as close as possible moving the mics. Just wondering if there's something more 'scientific' I can do.

 

[LouisC]

Note: this doesn't answer your question
BUT
in terms of manipulating phase in such a way as is analogous to physically moving microphones have you looked at:

Little Labs IBP Phase Alignment Tool

Easily correct phase issues and creatively manipulate colors and textures. Eliminate phase issues with multi-mic setups, DI/mic combinations, and live-recorded material Place mics where they sound best, rather than limited phase-coherent positions Tweak with real time, continuously variable...

www.uaudio.com

It's very creatively useful.

 

[BeingHumans]

Note: this doesn't answer your question
BUT
in terms of manipulating phase in such a way as is analogous to physically moving microphones have you looked at:

Little Labs IBP Phase Alignment Tool

Easily correct phase issues and creatively manipulate colors and textures. Eliminate phase issues with multi-mic setups, DI/mic combinations, and live-recorded material Place mics where they sound best, rather than limited phase-coherent positions Tweak with real time, continuously variable...

www.uaudio.com

It's very creatively useful.

I love both Little Labs UA plugs but I’m using IBP now more for exactly that, manual phase shifting effects, since I found this one (& it just happens to be on sale)…

MAutoAlign | MeldaProduction

The ultimate phase cancellation solution Phase cancellation occurs whenever you record anything with more than one microphone. Some people ignore it and keep the tracks dull, some manually…

www.meldaproduction.com

It’s so quick and easy to phase-align tracks with this.

 

[flandybob]

if you have a preset, try recording a palm mute strike with close mics in the ox on one side and room on the other. There you can measure the distance in samples. That should give you a ball park of the distance.

your live mics will have their own distance from mic to cab.

Make sure both your live mics are in phase and then experiment with just flipping the phase on the room to see what sounds better.

I would say that depending on how much room you blend in that the impact of phase / time alignment will matter less than the phase relationship between the two live mics.

you can also try just manually time aligning the mics

if all else fails, autoalign