I don’t put much weight in audio analysis.
Robert Blakey used audio extensively on the 1979 Committee on Assassinations.
One conclusion was.
Lee Harvey Oswald fired three shots at Kennedy, with the second and third shots hitting the president.
I never was able to swallow that.
We now know from witness testimony hidden by the Warren Commission but taken by the FBI and finally released a couple of years ago...
That Oswald was on the second floor making change for a dollar when the shots were fired.
Several co-workers confirmed that. They and Oswald rushed to the window to see what the loud noises were.
Then Oswald took his change across the hall to the break room, bought a coke and was drinking it when a policeman entered the room and saw him there.
First off, we have data from Trumps podium mic as kind of a master recording, which is kind of unprecedented. This a very high fidelity microphone recording equally high quality, high resolution digital audio traces.
We also have possibly hundreds of cell phone audio/video recording of the event.
Much of this data is very precisely time stamped and geo located to within a few feet.
Digital filtering can clean up the background noise. With a more sophisticated forensic analysis of multiple recordings from different locations it should be possible to identify the number of weapons used , the locations of those weapons and the number of shots fired.
We also have the rifles used by the shooter and all of the SS and Police marksmen along with the ammo that they used to obtain sound signatures from each weapon for forensic analysis