Thanks for that! Some interesting sounds... Some exploration is indicated, I think! -- Pete -- On Sat, Apr 10, 2021 at 11:48:35PM +0100, Joel Ross wrote: > I've been meaning to look into this for some time. I think these are > the phasor filters that Max Mathews was working with as a sort of live > collaborative tool. In any case, the actual filter is described here: > https://ccrma.stanford.edu/~jos/smac03maxjos/smac03maxjos.pdf > > They are resonators with very narrow bandwidth so I could imagine this > being used for creating resonant filter banks. You can tune the > frequency arbitrarily with no issues so you can do FM on the filter > and this can be an interesting effect. > > I've made a UDO with some examples where I've tried to see what kind > of things it can do. You can find it here: > https://ide.csound.com/editor/ZUqtXiECq7vZjRNrW1YL > > !!!WARNING!!! - if you want to try using the UDO outside of these > examples, it can and will blow up and produce very loud output if you > put a continuous signal through them that doesn't have a VERY small > amplitude. > > Warnings aside, hopefully it's of interest to someone :) > > Joel > > Csound mailing list > Csound@listserv.heanet.ie > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND > Send bugs reports to > https://github.com/csound/csound/issues > Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here