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Audio, Acoustic & Mic Timeline (Shot Timing & Analysis)

This page runs two clocks. The first is measured in milliseconds — the arrival-order sequence that acoustic analysts read off the Canon XA55 broadcast camera at 12:23:30 PM MDT on September 10, 2025. The second runs in months — how the under-shirt mic placement, the RODE transmitter, the shirt-pull footage, and the burnt object recovered from the SUV surfaced publicly between late 2025 and mid-2026 and were assembled into an argument that the sound did not originate on a roof. The official finding remains a rifle gunshot, and Tyler Robinson is charged, not convicted. Every entry below is labeled by sourcing strength.

Clock One: The Acoustic Sequence (milliseconds)

The reference recorder is a Canon XA55 professional camcorder positioned roughly 46 metres from the tent. Unlike phone recordings, it captured uncompressed audio on four channels at 48,000 samples per second — the reason analysts treat it as the day's cleanest acoustic witness. Phones nearer the stage smear the events into one noise; the distance gave the Canon an acoustic buffer.

• T+0 ms — 12:23:30 PM MDT (reported) — The shot. This is the master anchor used across the site and disputed against a 12:27 PM figure on 12:23 vs 12:27 shooting time and at shot time 12:23 vs 12:27.

• T+0 to ~T+100 ms (claimed) — Analysts report the high frequencies arrived first, spread across more than 100 milliseconds rather than arriving together. Their argument: a supersonic projectile produces crack-before-boom separation, whereas a single blast at one point radiates all frequencies to the microphone simultaneously. See Canon audio detonation analysis.

• T+114 ms (claimed) — First distinct low-frequency event, interpreted as Mach cone energy from a supersonic round.

• T+202 ms (claimed) — Second distinct event, interpreted as muzzle blast originating roughly 120 metres away — consistent in bearing with the rooftop firing position in the charging documents and with the rifle described at Mauser 30-06 rifle.

• T+321 ms (claimed) — Third and loudest low-frequency event, which the analysts place approximately 46 metres from the camera — i.e. at the stage, under the tent, where Kirk was seated. They argue it is not an echo or reflection because it is the strongest low-frequency peak in the entire recording, and echoes attenuate. See Acoustic Two-Event Split, the Canon XA55 third boom, and the tent structure under Charlie.

• T+321 ms, interpretation (claimed) — Proponents conclude two events at two locations roughly 185 ms apart: a rifle at 120 m and a detonation at the stage. Their framing is that a single shooter cannot produce a detonation under a tent 120 m from the rifle, and a device cannot produce a muzzle blast 120 m away. This is an inference from waveform structure, not a court finding — the counterargument is that reverberation off the Losee Center and adjacent hard surfaces can produce late, loud low-frequency returns.

• Same second — local-source confidence (claimed) — Acoustic analyst @CorneliusActs publicly claims greater than 99% probability the source was local on/near Kirk’s person and under 1% distant rooftop, with residual uncertainty only because original multi-track forensic files were not examined. Citizen analysis, not a court finding.

• Same second, independent analysis (claimed) — A separate analyst applied acoustic triangulation — the technique used for artillery sound-ranging — to multiple smartphone recordings. Across repeated runs, one location kept resolving: in the courtyard, within about 2 metres of Charlie Kirk, not on a roof. The analyst notes this would make the widely reported witness description of a "firecracker" sound coherent. See acoustics from the south and the UVU courtyard.

• Same second — Freqazoid TDoA geometry (claimed) — A circulated acoustic-forensics write-up associated with @Freqazoid26 (promoted by @dustinodaffer, ~June 2026) concludes via TDoA, impact-to-muzzle timing, and reflections that the origin is the south courtyard ~50–95 m (best estimate ~72.5 m), treating Losee Center (~130 m) arrivals as late higher-order echoes, not the direct blast. This is a fourth geometry distinct from pure roof, on-body detonation, and teachers-balcony claims.

• Same second — third-path multilateration (claimed) — @troofevades TDOA multilateration on four synchronized phone recordings argues the waveform fits neither a pure Losee rooftop gunshot nor a single-point on-body detonation.

• Same second, competing direction claim (claimed) — A sound-and-acoustics engineer walking through a 3D model argued the sound came from the south, above the teachers' balcony — another candidate origin that agrees with neither the rooftop account nor the courtyard triangulation. Held at acoustics — south.

• Direction from human behavior (claimed) — Video analysts (@ClydeMax369) argue involuntary acoustic orienting in the crowd points left of Kirk. Separate witness compilations (@DiligentDenizen) collect reports of sound from the east / mountains (elevated) and “firecracker” character — five-plus witnesses said to disagree with a pure Losee direction.

• Immediately after (reported) — Witness accounts of what people heard diverge sharply, from a single sharp crack to a pop or firecracker; the spread is catalogued at witness audio conflicts and witness testimony discrepancies.

• Source-media integrity (claimed) — File forensics on circulated Canon-derived clips (@troofevades, March 2026) allege the native XA55 container for MVI_0625.MP4 was stripped, bitrate cut ~10×, length cut from ~11:15 to a ~32 s clip, and metadata fields added (including titles/dates not native to the original). Strengthens the open question: has any lab received uncompressed multi-channel originals? See Canon XA55 Audio.

Clock Two: How the Mic Evidence Emerged

The setup, before the event

• Pre-event, September 10, 2025 (reported) — The wireless lavalier is placed under Charlie Kirk's shirt rather than clipped outside it, with the transmitter pack on his left side at the belt. Researchers note the mic already had a furry windscreen fitted — a component that only functions in open air — and that other outdoor debates show the same rig worn on the outside of his shirt. The placement is attributed to Phillip Goldsberry Jr.; no allegation of wrongdoing is made, and the question raised is why the configuration differed that day. See mic under, not over, mic under shirt, and AV team mic setup.

• Pre-event (claimed, model unresolved) — Which RODE unit he was wearing is not settled. One update states a RODE Wireless PRO (32-bit float, lapel magnet, dock). Another proponent thread identifies a RODE Wireless ME. A third strand about a square object in a bystander's pocket cites Wireless GO II dimensions of roughly 1.8–2 inches. The model conflict matters because the internal layout differs; see RODE wireless mic and Butch Hibbs access — Butch Hibbs also figures in the crowd-drone thread.

• Pre-event / 2026 hardware fork (claimed) — Beyond the RODE PRO/ME/GO II fight, mid-2026 threads advance a Sennheiser G4 candidate for the burnt object / burn shadow / front-speaker unit and remote-receive capability (@lindseey_loo: argument that Sennheiser can receive a detonation frequency while RODE only sends audio). Hardware model remains unsettled; treat as competing theory, not inventory fact.

The day of, after the shot

• 12:23:30 PM MDT +frames (claimed) — Frame-by-frame reviewers describe the shirt being pinched and yanked over the left shoulder at the moment of impact — the observation that later became the shirt-pull argument. See shirt pull at the shot and the shirt and necklace move before the blood.

• 12:23:30 PM MDT +frames (claimed) — @brandisiciliani (July 2026) publishes anonymous-source footage she says shows black debris falling from inside the shirt at the hit; @TPV_John and others describe fall-moment shards resembling mic glass plus Yukon-floor battery-fragment claims. Visual interpretation only.

• ~12:24 PM MDT (claimed) — Debris later described as shattered black plastic or tempered glass is said to be present on the floor of the SUV used to transport Kirk. Proponents argue a fragmenting transmitter would scatter small glass and electronic pieces whereas a single rifle round would not. Counterpoint: an SUV floor in a chaotic evacuation is not a controlled forensic environment. See the SUV transporting Charlie and charred material and fragments in the SUV.

• Same afternoon (claimed) — A burnt object remains in the rear of that SUV. Its identification is the single most contested physical item on this page and is developed at burnt object — RODE transmitter, burnt object transmitter, and the burnt object in the SUV.

Late 2025 into 2026 — the analyses arrive

• Late 2025 (claimed) — The exploding-mic hypothesis takes shape publicly: that a shaped charge concealed in or alongside the transmitter, rather than a distant round, produced the neck wound. Its full statement, including the PETN and shaped-charge framing, is at exploding pendant / shaped charge, the exploding microphone theory, explosive in mic likely killed Charlie, and rigged mic explains anomalies. The snapped necklace and the missing residue search sit alongside it at necklace and residue and necklace cavitation residue.

• December 18, 2025 (claimed) — @BlakeBednarz high-reach tent-overhead analysis: vibration ring and debris interpreted as under-shirt detonation, not a ~140-yard rifle impact alone. Early visual-detonation node later built on by mic-theory proponents.

• Late 2025 – 2026 (claimed) — Proponents pair the mic theory with a DoD contract for miniature explosive devices signed April 22, 2025 and with the AES plant explosion in Tennessee, arguing capability and coincidence (some threads also align alleged ~Aug 25 delivery/close-out with the ~Aug 27 UVU stop announcement). Both threads are separately disputed; see Mic and the DoD contract, AES, the AES factory explosion, the Heber City → Nashville flight, explosion and killings at the AES factory, AES Tennessee explosion, and how Stew Peters broke the AES / exploding-mic connection.

• 2026 (claimed) — A clearer photograph of the burnt object, taken while the vehicle sat at an auto auction, is circulated. Annotators say a thicker black section at the object's left edge contains a melted female audio jack of the type found on the top of the RODE transmitter, and that a fragment in the centre of the mass carries writing and a circular symbol they match to warning markings on a modified battery pack. Competing annotators match dimensions to Sennheiser G4 instead (see hardware fork above).

• 2026 (counterargument) — Skeptics reply that melted polyester fused with charred tissue can present features that pattern-match to almost anything at that resolution, that no chain of custody for the SUV has been published, and that the transmitter model itself is still unsettled within the proponent camp. See mic vs pendant.

• June 21, 2026 (claimed) — A 4K close-up of the shirt is published and read frame by frame as showing an explosive path: initiation at the left-side mic pack, detonation under the fabric, the object driven upward producing the pinch over the left shoulder, then falling back and tracking diagonally across the chest to rest at the lower right. Proponents present this as visual proof of an internal detonation. See mic explosion video analysis and the Jon Bray profile.

• June 2026 — dual-event refinement (claimed) — As summarized by @BasedSamParker after TriggerSmart debate context (@jonaaronbray / @triggersmarthq): a real gunshot (possibly rooftop) for witness audio / cover plus a Mach-cone acoustic trigger to a body-worn device, with the lethal mechanism described as a high-pressure jet / hydrostatic effect. Competing reads of necklace vs circuit-board “swoosh” remain internal to the proponent camp. Theory attributed to Bray/Parker ecosystem — not proven.

• 2026 (counterargument, direct) — A critic argues the theory has gone viral precisely because it is unfalsifiable in practice: a simulated shaped-charge test promised for more than six months has not been produced, and demonstrating or refuting the mechanism would take an afternoon in a test range — the closest public attempt is catalogued at Demonstration of a Shaped Charge. That absence of a physical replication is the strongest standing objection.

• July 2026 — physics + ME counters (claimed/reported) — Physics critiques (@alexboge and others) argue a shirt-clipped transmitter cannot form a proper shaped-charge jet without liner, standoff, and rigid fixation; multi-angle video shows puff without tear/flash/soot expected of contact explosives; frame critics note the mic pack stays still while the back of the shirt moves first (@wtshesaid72; @paramounttactcl shirt-integrity argument). Hearing coverage cited by critics states the autopsy entered gunshot wound to the neck with bullet fragments recovered — if accurate, any mic-only theory must also explain the projectile evidence. ATF fragment work remains class-characteristic only on the recovered-rifle side.

• 2026 (claimed) — Candace Owens argues on air that the shaped charge was intended for the chest and that the neck wound was an accident of Kirk's posture, and separately says she received tips that assemblies of this type could be built at Fort Huachuca. Both are attributed claims about unnamed people; see the Candace Owens timeline, the Fort Huachuca and military timeline, and Fort Huachuca EM expertise. Speculative posts naming living persons as remote-trigger operators circulate on X; this site does not elevate those as facts without court filings.

• 2026 (reported) — On the official side, the ATF fragment analysis came back class-characteristic only, unable to individualize the recovered fragment to the recovered rifle. That inconclusiveness is what keeps the acoustic and mic arguments alive; see ATF fragment class only, ATF fragment inconclusive, 30-06 energy mismatch, and no blood spray / energy mismatch.

• 2026 (reported) — The prosecution case in preliminary hearings continues to present a single rifle round from an elevated position, with the ballistics and trajectory record argued at wound trajectory angle and ballistics and wound analysis.

Conflicts and Disputed Points

Item	Version A	Version B	Who asserts each
What the third low-frequency peak is	A detonation at the stage	An echo or reverberant return off nearby buildings	Canon XA55 analysts vs conventional-acoustics skeptics
Shot origin	Rooftop / Losee, ~120–130 m	Courtyard within ~2 m or south courtyard ~50–95 m (Freqazoid ~72.5 m) or teachers’ balcony / east-mountains	Charging documents vs triangulation / TDoA / witness-direction camps
Dual-event model	Single rifle round only	Rifle cover + on-body device (Bray/Parker dual-event) or mic-only	Prosecution vs dual-event / exploding-mic proponents
Hardware worn	RODE Wireless PRO / ME / GO II	Sennheiser G4 alternate	Competing proponent posts; inventory still unresolved
Burnt object identity	Melted shirt fabric and tissue only	Fabric and tissue plus transmitter jack and battery fragments	Early reads vs the auto-auction photo annotators
Mechanism of the neck wound	Rifle GSW (ME entry + bullet fragments per hearing coverage)	Device detonated under the shirt (must also explain fragments if GSW is accurate)	Official finding and prosecution vs exploding-mic proponents
Canon source media	Clean multi-channel reference	Circulated derivatives re-encoded / metadata-altered (@troofevades)	Broadcast-camera analysts vs file-forensics critics
Status of the shaped-charge theory	Demonstrated by video reads	Not physically replicated; physics critiques (standoff/liner/32 g clip)	Proponents vs falsifiability + physics objections

Open Questions

1. Has any independent laboratory been given the original uncompressed Canon XA55 files with intact metadata, rather than re-encoded copies?
2. What is the documented chain of custody for the SUV, its floor debris, and the burnt object from September 10 forward to the auto auction?
3. Which RODE model was actually issued that day, and does an inventory, invoice, or AV run-sheet exist that settles it?
4. Why was the lavalier placed under the shirt when the fitted windscreen implies outside placement, and who made that call?
5. Was the recovered transmitter ever tested for explosive residue, and if so, by whom and with what result?
6. Can a controlled acoustic test at the courtyard reproduce the three-peak structure from a single rooftop shot, and has anyone tried?

Laws (Charlie Kirk)

The original uncompressed multi-channel Canon XA55 audio with intact metadata, the AV run-sheet and equipment inventory identifying the exact RODE model and who fitted it, the chain-of-custody file for the SUV and the burnt object recovered from it, any explosive-residue or laboratory testing performed on the transmitter and on Kirk's clothing, and the full ATF and state ballistics work product behind the class-characteristic-only fragment finding are things the Charlie Kirk Investigation Laws may result in powerful truths coming out that aren't out yet.

Related Areas

• Mic evidence — full section
• Lapel mic and audio theories, medical view
• The RØDE mic
• Alternative kill mechanisms

• Tent structure under Charlie
• The Canon XA55 broadcast camera
• Close-range shooter theories
• 30-06 energy mismatch argument