We believe it is because in prepping the project, our AE seems to have unknowingly set many of our multi-camera sequences so that, when nested, the audio is bound to tracks with channel output mapping. Our AE, who had a lot of experience with Final Cut 7 but was new to Premiere, has no idea how she could have turned channel mapping on nor how you even select it when syncing. (Note: When our sound is locked we will go out to a professional mixer and we don't think we want channel mapping on).
We have had this issue in both PP 2014 and PP 2015. We cannot work this way because it's impossible to edit together clips that have mapping on, and clips that do not have channel output mapping on, based on how it binds certain clips to certain tracks which causes audio to jump tracks and go out of sync.
Currently, we have two thoughts:
1. Making everything adaptive (We believe this means that every track on every sequence would have the channel output mapping on, which would mean that all audio would stay on its respective track) or -
2. Copying the pre-sync media in the sequences that create the channel output mapping and, instead, pasting that media into a new sequence with settings we control - where when we bring the new sequence in nested, seems to make the channel output mapping go away (though we don't know if it will stay this way).
We presently have 300+ hours of footage that we need to fix and go back and create new sequences. We're not sure if either of these options are good solutions.
Is there a benefit to having the channel output mapping turned on, which we are missing? (If so how do you turn it on?) Or is there a solution that we haven't come up with in which we can address this issue much more expediently?
Any advice or insight into this issue would be greatly appreciated.