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three sisters visualizer
THREE SISTERS — FILTER VISUALIZER
LOW
CENTRE
HIGH
ALL (sum)
Mode
Crossover
Formant
FREQ
440 Hz
SPAN
1.00 oct
QUALITY
Q = 0.95
Try
Clean
Vowel
Self-osc
Crossover
partitions the spectrum: LOW = 24 dB/oct lowpass, HIGH = 24 dB/oct highpass, CENTRE = the band between. Sum is approximately flat at low Q.
Formant
= three bandpass peaks. SPAN spreads LOW and HIGH; CENTRE stays at FREQ.
QUALITY past ~70% approaches self-oscillation. CCW-of-noon notch behavior is not modelled.