Band Pass: This mode preserves a range of frequencies while removing all other frequencies.
Notch: The opposite of the band pass filter.
Low Pass: passes the low frequencies while rejecting or removing high frequencies
High Pass: passes high frequencies and removes low frequencies
Low Shelf: allows to amplify or attenuate low frequencies.
High Shelf: allows to amplify or attenuate high frequencies.
FFT: Applies the Fast Fourier transform filter to the selected part of an audio file. (for rejecting or boosting specific frequencies)
FIR: Applies Finite Impulse Response filter to the selected part of an audio file.