This is a module from Izotope RX that I’ve used quite a bit! De-bleed works just like its name. It reduces the unwanted sound that bleeds into an open mic. In one of the shows I worked on, they recast one of the lead characters after they did the production shooting which means I needed to remove his voice underneath any other dialogue so I can replace with ADR in there. De-bleed performs a great job in this situation!
