A classification of digital equalizers (draft)

A must read for EQ aficionados🙂
Thanks Vlad for sharing!

vladg/sound

Okay, this is my first try to make some kind of classification of digital equalizers. It’s mostly based on some defects or features they have in their responses. These defects or features give digital equalizers their unique sound. Sometimes they sound “digital” in bad meaning of this word (i.e. “harsh”) but the other side of digital sound is clean, pristine and maybe too cold sometimes. I don’t have much time to make this classification really glossy so it’s some kind of a draft.

In my opinion there’re 7 main properties of digital equalizers, which affect their sound:

  1. Frequency response behavior near Nyquist frequency
  2. Phase response behavior near Nyquist frequency
  3. Frequency response ringing
  4. Types of Curves
  5. Time domain response
  6. Saturation
  7. Noise

Now I’m going to try to illustrate possible cases for each property by some images mostly created by VST Plugin Analyzer. All pictures were created at 44.1 kHz sample rate…

View original post 1,979 more words

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