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In Reply to: Re: Most engineers record drums out of phase.... posted by Peter Olofsson on August 5, 2005 at 06:06:58:
an overhead drum mic does not have to be reversed, it depends but certainly the fact that it is close has nothing to do with it. It does have to do with the polrity of the mic itself, but its phase coherence with other microphones will be by far the most important issue.
Follow Ups:
Assuming that the polarity of the whole audio chain (including the mike) is correct, phase-inverting the tom and snare mikes makes a increase in definition, slight but audible. I am a drummer and I've tried this myself after producer/engineer Jay Graydon told me about it.Phase-reversal only makes sense with close-miked drums, close-miked meaning a distance of 1 to 3 inches. Drumheads move inwards when struck by a drumstick, and the resulting air-pressure makes the microphone membrane move outwards, and ultimately, the speaker cone to move inwards. Overhead mikes, which I call "distance mikes" are not as fast as the individual close mikes, and absolute phase becomes unimportant. The sound from these mikes are much more of a blend between reflected and direct sound, than the close mikes which is mostly direct sound.
Best regards,
by the way, if it were me, I wouldnt be using close mics on the toms anyway, because it creates phase problems. Since phase is all about arrival time, it really screws things up. The fewer mics you can get away with the better. That said, most engineers, technically speaker, recording everything a certain degree out of phase if they use more than one microphone. not 180 but somewhat, which is why you hear comb filtering,; a nasty sound.
And the way many engineers "deal" with these phasing problems, is by using noise gates, furhter degrading sound quality.The fullest, deepest and most natural-sounding recordings I've ever heard are still the classical "Decca tree" recordings from c. 1959-1969 on the Decca SXL label. Not all of them, but most. Three mikes (usually Neumann M50) placed in front of the orchestra in a (usually) great hall.
Multi-miking is overrated, I agree. I've found that usually, the more recorded channels, the less the chance that the levels will be set correctly at mixdown. With 140 tracks of Pro-Tools audio, people just don't pay much attention to every track any longer.
Best regards,
my point was that if you are talking about one mic, you shouldnt have to reverse the phase unless your microphones polarity is different than your microphone preamp's.
nt
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