I have a Apple TV 4K on the latest stable release of tvOS; Infuse Pro 5. I’ve adjusted my audio settings as recommended:
Infuse’s Audio Output option set to Passthrough.
Apple TV’s Settings > Video and Audio > Reduce Loud Sounds is turned off
I’ve also tried setting Infuse to Auto, experiencing the same results.
All files start playing fine, but randomly throughout playback 10-20 mins or so, the audio goes fuzzy. Some files play through completely OK once, then the next time go fuzzy. I believe the files all have a DTS-MA track.