
Once you do that, it should show up in Sound Preferences as a "Custom" sound (I created an "Ask Different Sound" specifically for this example). This also means you can write a quick batch file to do all your sounds if you like. The nice thing about using FFmpeg is that you don't have to manually open each file in QuickTime as you can do it right from Terminal. wav ~/Library/Sounds/.aiff and it will do both steps in one shot. The easiest way to do this is to use FFmpeg 1 Just issue the command ffmpeg -i.


You technically can't replace the sound files as they are protected by SIP (well.
