NotNotchFilter is a performance-oriented filter designed to replace the mid-EQ found in a standard 3-band DJ mixer.

The key advantage of this filter is that it cleanly cuts out single voices or instruments in a track, whereas a standard 3-band filter dampens them. This is because NotNotchFilter, as the name suggests, is not actually a notch filter. Rather, it is a combination of a hipass and lopass filter which work on opposite sides of the target frequency.