Biquad Filter Test
Original signal: sum of 2 sine waves (220Hz and 3500Hz)
High-Pass
Cutoff: 1200, Q: 0.6
Low-Pass
Cutoff: 1200, Q: 0.6
All-Pass
f0: 300, Q: 0.6
Band-Pass Low
centerFreq: 250, bandwidth: 1 octave
Band-Pass High
centerFreq: 3333, bandwidth: 1 octave