Not exciting, but useful. All variations on the standard Kyma filters.
First stereo filters, saved as a class. I prefer to have these available as a single object to save sound editor real estate. One version is set up with both left and right sides controlled by a single parameter. The other has separate left and right controls.
Then bandpass and notch filters, also as classes: mono, stereo (single fader parameters) and stereo (left and right parameter controls).
Finally, and slightly more fun and interesting, are variations on 3 parallel filters (mono only). One version allows the user to switch between them with a fader, with smoothing of the fades between the filters. Another gives a fader to interpolate between them with a fader. The last gives separate scale values for each of the three filters.
As noted in the comments for !Bypass in all of these classes, !Bypass was implemented (chiefly as a convenience) in a way that attempts to keep cpu use efficient. If !Bypass needs to to be artifact-less at all times, it is recommended that a gain be used between the dry sound and the output, and the included bypass set to 0.
!BypassScale is used to set the volume of the sound when the filter is bypassed.
-- PhilCurtis - 04 Jul 2006
These classes give errors when noise or delay (and possibly other) classes are input into them (seemingly even with other prototypes between). If anyone has an idea why, please let me know.
-- PhilCurtis - 23 Oct 2006
SSC helped me find the problem with noise/delay inputs. Uploaded fixed filters.
-- PhilCurtis - 06 Jan 2009
Thanks Phil - super useful!
-- CristianVogel - 20 Mar 2009