tricky question but I hope you can understand and help me

[videodrone]

I was wondering about what minusing Db means, for example=


I was wondering if I have a guitar part thats to boomy, I do knwo that I have to subtract 50Hz to help that.

But what do they mean by subtract 50Hz.
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Do they mean I just go to my guitar track and what ever EQ or FREQ or Db its on, I minus about the total of 50Hz from that?
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OR - is there a certain spot on a EQ graph, for instance 50Hz, would be in the low sectiona nd 100Hz would be in the mids and so on,

and were the 50Hz is located. than I go to that 50Hz area and trim a little in Db or Hz there?
_________________________________________________

Once I grasp this concept, I think it will clear alot up for me, I hope you understand my question

 

[drstawl]

I was wondering about what minusing Db means, for example=


I was wondering if I have a guitar part thats to boomy, I do knwo that I have to subtract 50Hz to help that.

But what do they mean by subtract 50Hz.
_________________________________________________
Do they mean I just go to my guitar track and what ever EQ or FREQ or Db its on, I minus about the total of 50Hz from that?
_________________________________________________
OR - is there a certain spot on a EQ graph, for instance 50Hz, would be in the low sectiona nd 100Hz would be in the mids and so on,

and were the 50Hz is located. than I go to that 50Hz area and trim a little in Db or Hz there?
_________________________________________________

Once I grasp this concept, I think it will clear alot up for me, I hope you understand my question

You've got it. The Hz reading is where on the frequency spectrum a sound is, and the dB is how much of a loudness change for that frequency is provided by the EQ.

It gets stickier because very few sounds are just at one specific place on that spectrum. Most sounds have components all over the spectrum, although their perceived presence may be more localized.

 

[Freudian Slip]

Yep. Hz is the location on an eq 50hz being pretty darn low and 20khz (k=1000) being at the top range of most eq's. The db's would messure the amount you add or subtract from the original signal at the area you are affecting, EG: 50hz.

It's a bit more complex once you get into it but that pretty much sums it up. The only thing I would add just for your info is that when you adjust any frequency/hz on an eq you are also affecting the surounding frequencys too a lesser degree the further you move from the center of your adjustment. for instance if you add 5db at 50hz you are also adding perhaps 2.5db at 45hz and 55 hz, and maybe 1db at 40hz and 60hz. Every eq is set up a little different as to how narrow of a range you are affecting but all normal eq's work that way.

Hope that made some sence.


F.S.

 

[drstawl]

Yep. Hz is the location on an eq 50hz being pretty darn low and 20khz (k=1000) being at the top range of most eq's. The db's would messure the amount you add or subtract from the original signal at the area you are affecting, EG: 50hz.

It's a bit more complex once you get into it but that pretty much sums it up. The only thing I would add just for your info is that when you adjust any frequency/hz on an eq you are also affecting the surounding frequencys too a lesser degree the further you move from the center of your adjustment. for instance if you add 5db at 50hz you are also adding perhaps 2.5db at 45hz and 55 hz, and maybe 1db at 40hz and 60hz. Every eq is set up a little different as to how narrow of a range you are affecting but all normal eq's work that way.

Hope that made some sence.


F.S.

To clarify my Freudian friend- there is a setting on some EQs to determine the width of an EQ adjust, called "Q". But like he said, no matter how narrow you slice it, it will always affect adjacent frequencies. Experiment and you'll get more of a feel for it than all the BS I could shove in your direction. It's a good idea to get a rough idea of what part of the spectrum a certain Hz represents. Like Slip said- 50 is pretty freekin' low- more like line hum (60Hz) than a real "note". But you decide what to call it.

A rose by any other name would still have some nasty thorns.