You might have come across the problem that you need a wma file. Here’s an example on converting wav to wma using ffmpeg.

$ ffmpeg -i inputfile.wav outputfile.wma

The standard output is 64kb/s. However you can change that by adding the parameter -ab.

$ ffmpeg -i inputfile.wav -ab 192k outputfile.wma

To add metadata, use the parameters -title and -author.

This test-file is the result of this command:

$ ffmpeg -i test.wav -ab 192k -title Spectacle -author Enchanted\ Duo test.wma