This is a Max for Live audio effect that wraps the supervp.sourcefilter~ object from IRCAM’s SuperVP for Max v2.18.10. This is in some ways an update of the supervp.sourcefilter~ wrapper included in https://maxforlive.com/library/device/953/cross-synthesis.
Note that SuperVP for Max is licensed under the IRCAM Forum Software License Agreement. To download SuperVP for Max, visit https://auth.ircam.fr/accounts/signup/ to create an IRCAM Forum account, and then visit https://forum.ircam.fr/projects/detail/supervp-for-max/.
This Max for Live device includes BrowseRouting.maxpat (and the RoutingObjects.maxpat subpatch on which it depends) in a bpatcher. BrowseRouting.maxpat is part of Cycling ’74’s Audio Routes suite of Max for Live devices. The “Audio Routing Example.amxd” device from Audio Routes includes this comment about BrowseRouting: “This subpatcher may be freely copied into any device as a bpatcher…”.