Constructs a new audio bus proxy for use in a shared environment, where there can be situations of semi-orphaned buses (only one reader or only one writer left).
Constructs a new audio bus proxy for use in a short-term temporary fashion.
Constructs a new audio bus proxy for use in a short-term temporary fashion. The implementation does not maintain dummy and empty buses for the case that there is only one reader or only one writer. As a consequence, it should not be used in such a scenario, as precious bus indices will be occupied. On the other hand, this method is useful for internal temporary buses, because when both a reader and a writer release the resource, there are no spurious bus re-assignments causing further busChanged notifications (which would go to concurrently freed nodes).