EQ4 (& EQ8) as Resonant Filter UPDATED for Live 5.2 + 6
Posted: Wed May 24, 2006 11:40 pm
You can use an EQ 4 instead of a filter. Try these settings for frequencies 1, 2, 3 and 4 on an EQ 4 and you'll find that it's not only a very solid filter, but it's also completely "transparent" when fully open (ie no resonant muddiness on fully open high pass, no resonant sharpness on fully open low pass).
Grab the number one and number four frequencies and tweak away!!! I find I use between 2 and 3 resonance the most often.
The pictures that follow show each individual frequency one at a time. The leftmost instance of the effect is Frequency 1, while the rightmost is frequency 4. It's not necessary to use four individual effects for this.
Q=1.0, virtually no resonance
Freq 1: Freq = ???, Gain = 0, Q = 1.00
Freq 2: Freq = 40, Gain = -1.20, Q = 0.40
Freq 3: Freq = 18.5k, Gain = -1.20, Q = 0.40
Freq 4: Freq = ???, Gain = 0, Q = 1.00
Q=2.0, mild resonance
Freq 1: Freq = ???, Gain = 0, Q = 2.00
Freq 2: Freq = 40, Gain = -6.43, Q = 0.94
Freq 3: Freq = 18.5k, Gain = -6.43, Q = 0.94
Freq 4: Freq = ???, Gain = 0, Q = 2.00
Q=2.5 resonance
Freq 1: Freq = ???, Gain = 0, Q = 2.50
Freq 2: Freq = 40, Gain = -8.13, Q = 1.10
Freq 3: Freq = 18.5k, Gain = -8.13, Q = 1.10
Freq 4: Freq = ???, Gain = 0, Q = 2.50
Q=2.75
Freq 1: Freq = ???, Gain = 0, Q = 2.75
Freq 2: Freq = 40, Gain = -9.00, Q = 1.25
Freq 3: Freq = 18.5k, Gain = -9.00, Q = 1.25
Freq 4: Freq = ???, Gain = 0, Q = 2.75
Q=3.0, very resonant
Freq 1: Freq = ???, Gain = 0, Q = 3.00
Freq 2: Freq = 40, Gain = -9.70, Q = 1.30
Freq 3: Freq = 18.5k, Gain = -9.70, Q = 1.30
Freq 4: Freq = ???, Gain = 0, Q = 3.00
Q=4.0, watch your levels, this one's hot!
Freq 1: Freq = ???, Gain = 0, Q = 4.00
Freq 2: Freq = 40, Gain = -12.00, Q = 1.53
Freq 3: Freq = 18.5k, Gain = -12.00, Q = 1.53
Freq 4: Freq = ???, Gain = 0, Q = 4.00
And when the filters are completely open, even with crazy high resonance, they'll be transparent:
Q=4.0, fully open there's no effect on the output signal
Grab the number one and number four frequencies and tweak away!!! I find I use between 2 and 3 resonance the most often.
The pictures that follow show each individual frequency one at a time. The leftmost instance of the effect is Frequency 1, while the rightmost is frequency 4. It's not necessary to use four individual effects for this.
Q=1.0, virtually no resonance
Freq 1: Freq = ???, Gain = 0, Q = 1.00
Freq 2: Freq = 40, Gain = -1.20, Q = 0.40
Freq 3: Freq = 18.5k, Gain = -1.20, Q = 0.40
Freq 4: Freq = ???, Gain = 0, Q = 1.00
Q=2.0, mild resonance
Freq 1: Freq = ???, Gain = 0, Q = 2.00
Freq 2: Freq = 40, Gain = -6.43, Q = 0.94
Freq 3: Freq = 18.5k, Gain = -6.43, Q = 0.94
Freq 4: Freq = ???, Gain = 0, Q = 2.00
Q=2.5 resonance
Freq 1: Freq = ???, Gain = 0, Q = 2.50
Freq 2: Freq = 40, Gain = -8.13, Q = 1.10
Freq 3: Freq = 18.5k, Gain = -8.13, Q = 1.10
Freq 4: Freq = ???, Gain = 0, Q = 2.50
Q=2.75
Freq 1: Freq = ???, Gain = 0, Q = 2.75
Freq 2: Freq = 40, Gain = -9.00, Q = 1.25
Freq 3: Freq = 18.5k, Gain = -9.00, Q = 1.25
Freq 4: Freq = ???, Gain = 0, Q = 2.75
Q=3.0, very resonant
Freq 1: Freq = ???, Gain = 0, Q = 3.00
Freq 2: Freq = 40, Gain = -9.70, Q = 1.30
Freq 3: Freq = 18.5k, Gain = -9.70, Q = 1.30
Freq 4: Freq = ???, Gain = 0, Q = 3.00
Q=4.0, watch your levels, this one's hot!
Freq 1: Freq = ???, Gain = 0, Q = 4.00
Freq 2: Freq = 40, Gain = -12.00, Q = 1.53
Freq 3: Freq = 18.5k, Gain = -12.00, Q = 1.53
Freq 4: Freq = ???, Gain = 0, Q = 4.00
And when the filters are completely open, even with crazy high resonance, they'll be transparent:
Q=4.0, fully open there's no effect on the output signal