Programs enabling conversion of the file:
If your objective is to convert the file from WAVE to the file MP4, you can use any of the applications listed. WAVE to MP4 conversion process in every program intended for this purpose (so-called converters) is very intuitive and everyone is able to manage converting a file.
However, bear in mind that the list may also include programs to support and work with the indicated extensions WAVE and MP4 - and not only converters. In such a case, you need to open the source file WAVE and from the options available in the program, choose ”Save as... MP4" or "Export to MP4".