Hey there and welcome to Apple Support Communities zurmeees190,
We can certainly understand your concern and can help provide some insight.
We recommend checking out these steps for more information on how to play audio in Dolby Atmos or surround sound on your Apple TV.
" Play audio in Dolby Atmos or surround sound on your Apple TV
Apple TV is designed to deliver the best sound experience that your home entertainment system supports. Learn which audio formats are supported on Apple TV and the setups you can use to play sound in the highest quality.
Audio formats supported on Apple TV
Apple TV 4K and Apple TV HD automatically play sound in the highest quality that's supported by your home entertainment system setup and that's available with content that you watch.
If your home entertainment system doesn't support the audio format that Apple TV automatically selects, you can manually change the audio format. Go to Settings > Video and Audio > Audio Format and turn on Change Format. From here you can choose the following:
- Dolby Digital 5.1: Plays audio on multiple speakers and a subwoofer, like a 5.1 speaker setup.
- Stereo: Supported audio quality for all televisions, movies, and TV shows that plays sound through a right and left channel.

Setups you can use
On Apple TV 4K with the latest version of tvOS, you can listen to music, movies, and TV shows in Dolby Atmos. You can use the following setups to play sound in Dolby Atmos or surround sound:
- One or two HomePod speakers*
- A television that supports Dolby Atmos audio
- A Dolby Atmos compatible sound bar with a television that supports Dolby Atmos audio
- A Dolby Atmos-enabled AV receiver "
For additional information, check out this link: Play audio in Dolby Atmos or surround sound on your Apple TV - Apple Support
If the issue only happens with the Vudu application, then uninstalling the application, restarting the Apple TV and reinstalling will be the next best step. Check out this link for more information on how to delete an app on Apple TV.
Customize the Apple TV Home Screen - Apple Support
If the issue still remains after deleting and reinstalling the app, then contacting Vudu directly for additional assistance would be the next best step.
How to contact an app developer - Apple Support
Kindest regards!