We will first try to identify what is the difference between a WAV file and an MP3 file so we could better understand the need for conversion. This has been ongoing and seems like the never-ending process because of the codecs, some file types work with both operating systems but there are few. Operating systems such as macOS or Windows support different kinds of file types, one may work on the other, but some may not.
Since not all file types are supported by macOS, there are times you need to convert WAV to MP3 Mac for you to be able to make it work.
