The Hilbert transform is a 90 degree phase-shift of the signal.
The ZIP archive contains the original Kyma Forum discussion from 2002 and two of the Kyma Sound files that are referred to in the discussion.
-- KurtHebel - 12 Apr 2005
By the way in the sounds that go with pete's DSP micro code there is one called 90 deg Phase shifter. This is an encasulated Phase shifter and doesn't actually need the DSP code at all. It outputs the 90deg phase shifted signal on the left and the matching delayed (but not phase shifted) signal on the right.
-- PeteJohnston - 13 Apr 2005