What gets presented in court is a "Detailed Forensic Report" that includes the timestamped audio waveforms, sensor locations, and screenshots of the multilateration computations. These reports, when used as evidence, are required to be available to the defense for rebuttal and crossexamination. One could, if one was so inclined, calculate shot locations by hand from these reports. The time stamped audio files are discoverable.
The underlying algorithms have been made available to defense teams in countless Daubert and Frye hearings. I have no idea what you're referring to by "a rules change like, last week."
How are you privy to the underlying algorithms/source-code being made available to defense teams? I thought the source code (algorithm) doesn't have to be made available to defense teams.
Daubert requires that expert testimony be based on "reliable principles and methods" and Frye requires "the thing from which the deduction is made must be sufficiently established to have gained general acceptance," both essentially requiring the disclosure of underlying algorithms if not the actual source code.
The underlying algorithm wasnt subject to examination by defense teams until a rules change like, last week.