My first thought is for something like an arrow visible through the viewfinder, a bit like a damage indicator in an FPS game like Halo.
Keep in mind "the black box" can output the position in 3 space (x,y,z, measured in mm) of coherent sound sources, but to know where those are relative to the camera, so that once can draw a little arrow, can be hard.
I'd like to try hooking it up to a VR/AR headset, since I imagine those already handle the task of knowing precisely where my head is and where it's looking.
1. mount the array on a tripod somewhere in the frame of the camera 2. the array is covered with an assortment of fiducials, 3. software uses the known intrinsics and extrinsics of the camera to figure out the array position relative to the camera 4. do the obvious thing with chaining transforms until you get the sound source position relative to the camera
If so, I think that would work, but would be a lot of coding to do all that CV...
> phone that has AR support
I take it cell phones now do much of this work?