"Shelf" EQ

chamelious · #1 10-03-2005

I was in a lesson in the studio today and the tutor asked if we knew what shelf EQ does, i thought that it affects all frequencys above or below a certain frequency, like above 12Khtz on the the Hi and below 80htz on the Lo, He says no, it just affects the one frequency, like only 12k on the highs. Is this right? Didn't wanna say at the time but doesn't sound right...

Massive Master · #2 10-03-2005

YOU are correct.

corban · #3 10-03-2005

That's funny. Yup, just to reinforce you here, you were correct, the tutor was wrong. Ask him when was the last time he saw a book shelf consisting of a tiny little pointy piece of wood, as opposed to a big long piece of wood.

Ronan · #4 10-03-2005

That is a scary story.

chamelious · #5 10-03-2005

hahaha yeah i was like, but, ummmm, why would it do that?! I'll tell him he's a dumb ass next time i see him hahaha.

jamking · #6 10-04-2005

Quote:

Originally Posted by Massive Master

YOU are correct.

Not doubting your word but I thought shelving was a predetermined frequency set at the factory (usually 100hz, 1k, and 10k). The only thing you could do with it was cut or add eq. It had no sweepable mid or Q setting.

I'm wrong?

snow lizard · #7 10-04-2005

Quote:

Originally Posted by jamking

Not doubting your word but I thought shelving was a predetermined frequency set at the factory (usually 100hz, 1k, and 10k). The only thing you could do with it was cut or add eq. It had no sweepable mid or Q setting.

I'm wrong?

That sounds more like graphic EQ.

Sweepable EQ's with no width setting are semi-parametric.

Add the width setting and it's full parametric.

Some shelf EQ's allow you to set the corner frequency.

If I'm wrong, I'm sure the pro engineers like John or Ronan will correct me. The way I understand it, Chamelious is correct.

sl

bleyrad · #8 10-04-2005

Some shelf EQ's also allow to change the "Q", but this functions differently than an individual band filter.
Basically a higher Q will give you a steeper slope up to the shelving point.
If the EQ is a resonant shelf, then a steeper Q will also mean a stronger resonance (a bigger "dip" just before the "climb").

snow lizard · #9 10-04-2005

Articles:

http://www.recordingeq.com/rw/tip58.html

http://www.audiomelody.com/Tutorials/MixingStep7.htm

http://www.prorec.com/prorec/article...2565F4005D82B3

chamelious · #10 10-04-2005

haha now im not sure myself everyone seems to disagree...

Chris Shaeffer · #11 10-04-2005

Well there are lots of models of EQ with different combinations of the standard features.

But a SHELF EQ is generally a %#&$ SHELF EQ. Your tutor either misunderstood the question, had a brain fart, or... there something else I don't know about thats going on.

Maybe its one of those rare EQ's that can be used to replace dynamics after too much compression?

(If that wasn't funny click here for the link to some FUNNY reading...)

Chris

chamelious · #12 10-04-2005

Hah, no its the shelf EQ on a regular Soundcraft Ghost console.

snow lizard · #13 10-04-2005

Quote:

Originally Posted by Chris Shaeffer

Maybe its one of those rare EQ's that can be used to replace dynamics after too much compression?

Where's Walters when you need him?

Quote:

Originally Posted by Chris Shaeffer

(If that wasn't funny click here for the link to some FUNNY reading...)

I just read The Daily Adventures of Mixerman. Twice.

Essental reading for anyone who...

Well, for anyone.

Slipperman's also a hoot to check out.

sl

Blue Bear Sound · #14 10-04-2005

Quote:

Originally Posted by jamking

Not doubting your word but I thought shelving was a predetermined frequency set at the factory (usually 100hz, 1k, and 10k). The only thing you could do with it was cut or add eq. It had no sweepable mid or Q setting.

I'm wrong?

Yes - you're wrong.... what you said is only true of cheap, budget-oriented gear (where they skim over such "technicalities"

).... a proper console allows the shelving frequency to be selected.

RAMI · #15 10-04-2005

Quote:

Originally Posted by jamking

Not doubting your word but I thought shelving was a predetermined frequency set at the factory (usually 100hz, 1k, and 10k). The only thing you could do with it was cut or add eq. It had no sweepable mid or Q setting.

I'm wrong?

Of course you're wrong. You've been wrong in every post you've made that I've read in every single thread you've posted in.

tourettes5139 · #16 10-04-2005

Quote:

Originally Posted by Chris Shaeffer

Maybe its one of those rare EQ's that can be used to replace dynamics after too much compression?

(If that wasn't funny click here for the link to some FUNNY reading...)Chris

Holy shit.

Thanks for the link! That's the funniest (and most disturbing) thing I have read in a LONG time!!

jamking · #17 10-06-2005

Quote:

Originally Posted by Blue Bear Sound

Yes - you're wrong.... what you said is only true of cheap, budget-oriented gear (where they skim over such "technicalities"

).... a proper console allows the shelving frequency to be selected.

Thanks and yes, my last recorder (fostex dig 8 track) was a piece of %&#@.

To Rami: Grow up, Woman and stop harrassing me! Out of all of the members I've met here, your the only one who is making this site look bad! I'm sure I'm not the only one who's noticed.

You have alot of growing up to do, little girl

corban · #18 10-06-2005

I personally have not had that experience with Rami.

jamking · #19 10-07-2005

I wish I could say the same. He's like a shadow when I post; an angry shadow

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