Noiz2
Sound Ninja
I don't think you will get an app to do that because it won't know what is part of the RT and what isn't. There is a tool that you can give a sample of RT and it will generate more sound with a similar spectrum and such. That I think is about as close as you are going to get.
As Paulears mentioned it's the lack of, well, "noise" that stands out. Which goes back to my point that IF you do a real narrative sound post and have a lot of tracks you will never have silence. You may still have to fill some places where you can hear the "noise" cut out but since there is so much else going on the fill doesn't have to be perfect to disappear.
So with full tracks you will probably only have a few spots where you actually need to fill holes (unless the production is REALLY noisey).
If you are not going to play the bare dialog track for anyone like the director you don't need to have a completely filled dialog track (usually).
Traditionally the other big reason you added some form of generic RT was that with optical tracks you can't ever go to no sound. If you do the decoder acts up and weird things come out. So there are famously omnipresent ambiences like "Yellow Sky" that were duped and cut in when ever there was "silence".
I have a few of these from transfered old optical recordings. They were mostly just recordings of empty sound stages. YS was I believe recorded on the set of the film by the same name but?
As Paulears mentioned it's the lack of, well, "noise" that stands out. Which goes back to my point that IF you do a real narrative sound post and have a lot of tracks you will never have silence. You may still have to fill some places where you can hear the "noise" cut out but since there is so much else going on the fill doesn't have to be perfect to disappear.
So with full tracks you will probably only have a few spots where you actually need to fill holes (unless the production is REALLY noisey).
If you are not going to play the bare dialog track for anyone like the director you don't need to have a completely filled dialog track (usually).
Traditionally the other big reason you added some form of generic RT was that with optical tracks you can't ever go to no sound. If you do the decoder acts up and weird things come out. So there are famously omnipresent ambiences like "Yellow Sky" that were duped and cut in when ever there was "silence".
I have a few of these from transfered old optical recordings. They were mostly just recordings of empty sound stages. YS was I believe recorded on the set of the film by the same name but?