When sending your project to audio post, there are some simple practices that help your movie to have much solid and safer soundtrack and here are two basic and not less important ones:
This one can be very helpful to refer and make sure everything is alright when it matches to ProTools timecode. I found this tutorial here explaining how to add it on Premiere PRO.
1. 2-pop countdown
This tiny piece of video at your timeline's beginning settle itself as a solid project's sync point because when the number two comes with a 8khz beep which is used to sync the new soundtrack once it comes from audio post. Here's an example.
2. On screen timecode
This one can be very helpful to refer and make sure everything is alright when it matches to ProTools timecode. I found this tutorial here explaining how to add it on Premiere PRO.
Keeping the sync on audio post
Regarding many questions about audio exporting, I decided to do this simple tutorial explaining how to export AAF properly. It's important to consider this is directed to directors/editors who are planning to work with me, therefore, these settings are suitable to my workflow and are not the "correct" way although they are a good way to go.
Premiere PRO:
1. Click on File>Export>AAF
1. Click on File>Export>AAF
2. Match the settings shown:
*If you have any effects, please send me a message so we can set it carefully.
In order to create an .AAF for a Final Cut Pro X session, you will need additional
software to convert a .FCPXML file to an .AAF.
“X2Pro” will do this and is available at: https://x2pro.net/