Short description of Switch Audio File Converter 3.00: Convert wma to mp3 with Switch audio file format converter for Windows. It can convert mp3, wav or wma format and more to the format of your choice. Switch Converter is very easy to use. Just add the files you want to convert to the list, select the format you want to use, and then click the convert button. Automatically normalize audio while converting. Access online database to add song information as you convert.