Steps to using SOX to create MP3s:
- Download latest version of SOX and install.
- Download
libmad-0.dllandlibmp3lame-0.dll. The currently only known trustworthy source is ossbuild but this requires you to download a 1.5 GB archive. The selected two files are available here and here. - Add
libmad-0.dllandlibmp3lame-0.dllto the folder where SOX was installed to. -
Use the command line to convert a file to
.mp3:sox input.wav -c 2 -C 128 output.mp3
Note: -c 2 makes it stereo, -C 128 specifies output as 128 kbps MP3