I can't help you with a name, but it's one of the tricks that YouTube guitarist/instructor Paul Davids details in this video [0] - doubling down on it. (Basical

I can't help you with a name, but it's one of the tricks that YouTube guitarist/instructor Paul Davids details in this video [0] - doubling down on it. (Basically he double-mics his guitar, sending each of the mics hard to one side, then again delayed and attenuated hard to the other side as well. What you get from that is a pretty good simulation of opposite-wall reflection from a larger space.) [0] https://www.youtube.com/watch?v=ww-cH29IGeM https://www.youtube.com/watch?v=ww-cH29IGeM