Filter Resonance

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Filter Resonance

Postby HSL » Wed May 15, 2013 7:57 am

I'm used to filter resonance being labeled "Resonance". Am I correct to assume that when selecting a standard LPF, the Resonance amount is automatically selected when you change the 'Q' parameter?
Last edited by HSL on Thu May 16, 2013 8:36 am, edited 1 time in total.
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Re: Never mind

Postby mosrob » Wed May 15, 2013 9:02 pm

Hmmm... what are you trying to tell us??? ;)
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Re: Never mind

Postby HSL » Wed May 15, 2013 10:31 pm

Actually, I just updated the post. Now I'm confused on the Filter Resonance...
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Re: Filter Resonance

Postby JAHFUNK » Thu May 16, 2013 10:31 am

Resonance = emphasis of a frequency.
On most synths this is either called resonance or Emphasis (Moog)
On a mixing desk it is usually called Q
It's all the same thing
Increasing the resonance value adds extra decibels of cut/boost to the selected frequency.
By sweeping the frequency with high resonance settings you get that classic synth sound, this can be done with the envelope, LFO or manualy.
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Re: Filter Resonance

Postby HSL » Thu May 16, 2013 12:25 pm

So the Q setting is resonance. It was confusing me because when I think of Q, I think of the Q/bandwidth of a bell curve or even a LPF curve on an EQ. I guess the Q on the E4 controls resonance only and not the actual steepness or rolloff of the LPF, since the steepness is chosen by the 2-pole, 4-pole etc filters.

Do I have all of that right?
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Re: Filter Resonance

Postby JAHFUNK » Thu May 16, 2013 5:43 pm

Yes you're correct.
Bandwidth is not the same as Q
Q = the Db of boost applied to the frequency
Bandwidth = the range of frequencies effected surrounding Q
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