gunrunnerjohn posted:Am I missing something, or is it a plain command line application?
Yes, its a plain command line app. The .exe that you download, though, is an installation program. It puts the program and some required DLL's into your Program Files folder. Then its executed via command line from there.
On my computer (Win 7), the sox program is put into its folder and is executed with a command line like this:
"C:\Program Files (x86)\sox-14-4-2\sox" -r 11025 "farm sounds 11025 4b.vox" -e ima-adpcm -c 1 "farm sounds 11025 4b.ima"