This lesson explains the spectral response of a signal. A spectral response is audio seen in the frequency/amplitude domain and seen here through use of FFT (Fast Fourier Transformation).
This lesson explains the various filter types we can find in equalizers. Most common ones are Cut/Pass filters, Shelf filters, Bell filters and Tilt filters.
This lesson explains the parameters given for each common EQ filter. These are usually: frequency, resonance / q, amplitude and slope.
This lesson shows a practical example of how an equalizer can be used.