revisiting that Bode Phaser

[Haible Juergen]

	>>... the PH-3 Phase Shifter.
	>
	>Somebody correct me if I'm wrong, but I think this is a DSP based
	>device. I looked at getting one a little while back, but never
bothered
	>for some reason.

Don't know about that Boss device, but speaking of the Bode Phaser again,
a digital implementation should be fine (and quite easy). No nonlinearities
here, other than multiplications with a very slow LFO.

Modelling normal phasers apparently is a problem with DSPs (don't
ask me why), but the Bode Phaser would be easy because all the
all pass filters are fixed. No need to approximate analogue time variant
filters here.

JH.