martyfireball said:
I screwed up the phase with the two mics i think, and got that horrid phasey frequency thing going on. What's that technique for phase aligning with raw amp noise or white/pink noise? I had a quick search but haven't found it yet.
edit: BURNY, ya beat me to it! Ah, well.
There are a couple variations, but for this technique...
Place your "dead center" mic on the dust cap as normal.
Run white noise though the amp.
Flip the phase on the off axis mic channel.
Bring up both of the on and off axis channels in a monitor or headphone mix. Hopefully your phones have good isolation.
Move the off axis mic around until the white noise is as cancelled out as possible.
Filp the phase back to "normal" on the off axis mic channel. Et voila.
If you're using headphones, it might be a good idea to record a the white noise test in the DAW and double check your results on the monitors.
When you're ready to roll with the guitar, record a test run and flip the phase on the off axis track in the DAW. If you just hear a bunch of high end, shrill, fizzy crap, that's probably good. Anything you hear at this point is what you'll be "removing" when you flip the phase back to normal on the off axis track.
Phase is a cruel bitch, but sometimes with a little luck, it can be a nice eq in a carefully controlled environment.