Download software that will enable you to convert audio to square wave. A few programs that offer this service are Blaze Audio Wave Breaker, MP3 To Wave 1.1 and Wave MP3 Editor. Open and install the software to your system once it has downloaded.
Open your newly installed conversion software, select the drop-down file tab at the top of the window's toolbar and open a new project. Navigate your way across the toolbar at the top of your software window and select the "Options" tab. Select "Preferences" and choose the folder to save your newly converted files.
Select the drop-down "Import" tab at the top of the page and import the audio file you wish to convert. Select your specific burning preferences and ensure that your audio file is set to convert to square wave. The burning process can take up to a few minutes depending upon the size of the file.