It is used to correct the frequency balance of each instrument and to create space or consistency between different instruments.
Frequently asked questions are:
· When and how do you use the different bands?
· How do you reduce annoying frequency areas?
· Where on the spectrum do the different instruments belong?
· How do you equalize a kick drum and a bass in relation to each other?
· How do you obtain a warm and brilliant vocal sound?
More technical questions include:
· What is asymmetrical, variable or constant Q?
· How do you use a dynamic equalizer?
· What are the pros and cons of phase linear/FIR EQ versus minimum phase/IIR EQ?
· What is the correlation between steep filtering, phase shift, and filter ringing?
· What is a Butterworth or Bessel filter?