In Windows I used to use foobar2000 (foobar2000.org) for converting audio file formats. It was fast and could virtually convert any audio format to another audio format.
Now that I’ve migrated to openSUSE, I’m looking for a replacement. Can anyone suggest something.
I know the CLI ffmpeg utility can do this job. (This should already be installed). You may also want to check out a graphical (gnome-based) app like soundconverter. You can install the latter via webpin. Its in the Packman repo.