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In Reply to: Ain't there no pro guys out there? posted by Inmate51 on October 11, 2006 at 09:32:34:
I use filters to achieve what would be as close as possible to
a flat response on the FOH as I can getI always use Pink Noise and measurement to get me in the park on
a systemThe human ear is exceptional in hearing freqs and one can fine tune
it a bit if it just sounds funny in a regionFilters being, Parametrics, 1/3 Octave, 2/3 Octave and never Ocatve
because it just dont git to the nitty gritty enoughAnd the most critical regions I believe on any sound system
is the midrange
If the midrange aint right its a dam mess up there :)
Follow Ups:
Do you EQ to take into consideration the effect a populated hall has? It would suck out a lot of the midrange frequencies and change the bass region doesn't it?
If you're asking that question, you're already ahead of "the curve". (haha, I'm funny.)The answer is yes. The amount of difference depends on the venue. An empty nightclub with a hard floor, hard walls, hard chairs, etc. (beer and booze ends up everywhere) will change a lot when it's filled with people. On the other hand, a concert hall with cushioned seats (especially if they're also upholstered on the underside of the seat), carpeting in some areas, etc. will change less.
But EQ'ing for the house is just the beginning. Balancing the sound of the musicians is another issue. Especially in the nightclub situation, the band often sounds like "boom, cymbal wash, snare crack, distorted guitar" accompanied by unintelligible vocals and some distant horns.
So, please tell me that you don't bring up the range below about 125 Hz to "get more bass". All you're going to do is bottom out the woofers and end up reconing them. Usually, what we're looking for is "punch", not rumble. Punch is more in the range of 125 to 250 Hz. So set the very low end where you want it, and then add punch by bringing up the the overtones.
And on the vocal channels, roll off everything below 150 (unless the main event is a bass singer, in which case, cut it below 125 and don't tell him ;) ) and above 10 KHz. It'll tighten up your sound and reduce the cymbal wash and guitar distortion bleed.
Think "what frequency range does this mic need to pick up?" and chop the rest.
Absolutely and across the spectrum, house gigs with dynamic crowds are the endless tweak, concert venues without a lot of crowd migration are somewhat less challenging but any audio desk, mains or monitors is a jealous lover once you take your eyes off it something will happen requiring all of your attention, right now. Keeps ya on your toes, a good thing cause after your confident in your basic house curve and mix you need to take a walk, see how it sounds everywhere, fix as required and walk again.
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