I have a question about the EQ3 to make a graphic EQ bank by chaining them together.
I made what I think is a 15 band graphic EQ by chaining 5 x EQ3’s together but some of the bands I made don’t quite sound right so maybe my numbers are wrong and I am using the EQ3 the wrong way.
In the wiki it’s says this :
“This is a 3-band equalizer with controls for the gain of each band (low, mid, high) and controls for the center frequency of the two outer bands (low, high). You can also think of this equalizer as a 3-band exponential VCA since each frequency band’s gain is modulate-able. The equalizer is constructed from two 4-pole filters: a low-pass filter and a high-pass filter both acting on the input in parallel. Subtracting the outputs of the low-pass and high-pass filters from the original signal yields the mid band”
If I set low = 50 hz, high = 100 what would the middle band be? Would it be 75hz (150/2) - so I have 3 bands at 50/75/100 or would it be 50hz (100-50?) - 3 bands at 50/50/100? based on the way I am reading the wiki description. Or does it behave a different way that I’m not understanding? The idea is to get separate bands spread from a low of 20htz to max 13khz. Except for the top and bottom frequency bands, the bands I want spaced at an interval of a major seventh - 29 / 61 / 115 / 218 / 411 / 777 / 1.5k / 2.8k / 5.2k / 11k