This Twitch session comes on the heels of releasing the Phonon 3D plugin for Unreal Engine 4. In the video, I go over how to get 3D audio up and running in a simple Blueprint project.
Note that at the end I get a little confused by the audio settings. For the record, I was right in the first instance: you can mix HRTF and panning in a single scene.
Thanks to @anishchandak and @LakulishAntani for all the great feedback before the live stream. Hoping to do more in the future!