I have two AkVolumes and between them AkPortal on which I have a certain amount of Obstruction Refresh Interval . There is a Sound Emitter placed in one of the AkVolumes. Now once going back and forth I am getting weird phasing and fast fade of Sound what sounds very unorganic. Any idea if I can ut some sorth of fade on top of the Akportal so the there is no abrupt change of going through the portal?