Yes. Sure you CAN render separate audio. However, what is the way you intend to publish this work? THAT is going to be your biggest issue. What is going to be your method in presenting to your "viewer"? VHS tape? DVD? Internet? How quickly do you WANT your viewer to switch between the 2 versions?

Look, Vegas is an NLE; it allows us to edit and construct edited video with audio. Outside of Vegas and DVDA, how this "work" is THEN presented often is the issue that is raised on these boards. There has been another post on this forum about "looping". IMO, this again is about "after" the work being concluded in Vegas.

Get back here with your preferred method of publishing, and maybe there will be a solution.

Grazie