A cvu file extension is related to the CVSD (continuously variable slope delta modulation) unfiltered audio file format.
CVU file extension - CVSD unfiltered audio
What is cvu file? How to open cvu files?
File type specification:
The cvu file extension is associated with the CVSD (continuously variable slope delta modulation), a voice coding format developed by Greefkes and Riemens and used by Motorola.
The cvu file stores some kind of CVSD audio data.
This cvu file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.