Shooting video in AR KIT

When shooting in the app AR KIT an object in augmented reality, the video does not retain sound. How to fix it?
Device iPad pro 2020 , iphone 11.
A possible issue could be that your device's ringer is off.
Call checked and all sound settings are all included. There is sound while using and watching AR. But when you save the video, it disappears. Perhaps it was specially conceived to record video without sound? Or you need a special application for it?
Shooting video in AR KIT
 
 
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