Do you know AMR files?
No, these are definitely not cooking pots... ;-)
If you use your iPhone for voice notes, and transfer these to your Mac, that is the "Apple Message Recording" format that #Apple uses for the audio recordings.
My #NeoFinder 8.8 for #macOS can now get the basic metadata contained in these files for you, and even an audio extract, if you want one.
https://www.neofinder.de/forum/phpBB3/viewtopic.php?p=574#p574