Volume boost on synced content (iOS)?

Hi, I’m currently frequently travelling by plane and train, and watch synced movies/TV to pass the time, where streaming isn’t possible. But even on the highest volume setting, I can’t hear the audio soundtrack very well. I’m using iPhone X and iPad Pro devices, and I’m using Apple AirPods. I think I need at least 2x volume boost. Please could a playback setting be added to the iOS app to provide this volume boost?

I have exactly the same problem. The audio boost feature in the playback options does nothing at all when watching synced videos.

My setup is also the same (not sure if linked to the problem):

  • iPhone X
  • Apple Airpods

As soon as I stop using Plex and I listen to Apple Music (for example) the volume becomes at least 2X higher immediately and I can hear again.

Any idea?

2023 clean-up: duplicate