Technically, Holofunk is a synesthizer.
Synesthesia is the cross-stimulation of sensory pathways. Holofunk takes your every sound and puts it in front of you, letting you see it, reach out, and touch it. Sight, touch, and sound become a unified
experience when Holofunking.
Holofunk creates synthetic synesthesia, and I like switching the "th" and the "es" to turn
synthesizer into synesthizer.
The only problem is that "synesthizer" is a tongue-twister, so Holofunk is its name :-) And there are who knows how many possible synesthizers -- Holofunk is just a first attempt!