You will need to encode your wav file all the different formats you want to test with. This however is not a true test.
I don’t know if you will be able to find a codec that will ‘broadcast’ your wav file while encoding it. However, you should be able to find utilities that encode the file and allow you to save it.
Here is one for the G.711 to get you started. Use google to search for others.
http://ilmari.siba.fi/users/pdonner/G711Tool.htm
Good luck