OptionalcoefficientSpectral-delay allpass coefficient. -0.5 approximates octave spacing. Default -0.5.
OptionalmixEffect mix (0 = aligned dry, 1 = barberpole sum). Default 1.
OptionalrateSigned notch travel rate and direction in Hz. Default 0.1.
OptionalstagesCascaded allpass count; two stages produce one notch. Default 32.
Options for the SSB spectral-delay barberpole phaser (DAFx-15 Fig. 12).