Wow, @vt1, that video is really amazing! Thanks for sharing, and thanks for doing the supersonic cone illustration. I did some online searching yesterday to see if I could find how close you had to be to the path of a bullet to hear its sonic crack, but I was not not successful at finding a clear answer, or a formula.
I recently added the police cruiser that pulled up to the front door of the AGR building to my TDOA analysis. I expected it to provide some valuable insight to the scenario since I knew what its exact location was, and it did not move, whereas TMX and DJStew were both definitely moving. Unfortunately, instead of simply providing answers, the cruiser added more questions. On a positive note, I am seeing amazing consistency for the first 8 shots. The cluster is confined to less than 2 meters. However, shots 9 and 10 are now providing three potential solutions, and the locations implied by the Cruiser put the counter-snipers in the line-of-sight that would be occluded by the tree, so that seems unlikely. The attached PDF shows “podium-centric” plots for the first 10 slides and “TMX-centric” plots for the second set of 10. With “centric” meaning that the TDOA plots are sure to include “podium” in the first set and “TMX” in the second.
So, now I’m confused. I’ve tried some “what if” scenarios, like what if the sounds being heard by the Stewert camera were sonic cracks instead of reports, but nothing I’ve tried has yielded any improvement/clarity to the TDOA hyperbolas. So, suggestions from you or anyone else are appreciated at this point!
My 4.4MB PDF file was apparently too large for me to upload this forum. So, here is a link to it.