How to Enable What U Hear Recording. For those of you who want to record what you are hearing over your speakers/headset. You will need to un-hide and enable recording options. If you are using a Creative Sound Blaster sound card this option will be called "What U Hear" if you are using another audio device such as Realtek on-board or generic sound devices this option will be called "Stereo Mix".(((View Full Tutorial)))