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The Canon XA55 Audio and a Third Boom (Claims)

:::caution Attributed claims only No analyst is named for this analysis, no raw audio is published, and no methodology is documented well enough to re-run. No independent acoustician has reviewed it. Nothing below establishes that any device detonated or that any person did anything wrong. It is an unsourced claim, recorded and examined, not a finding. :::

A third boom at the tent would put the loudest energy of the day exactly where Charlie Kirk was assassinated, which is why this recording sits near the center of the site's cause-of-death analysis.

Claim snapshot

Field	Value
The claim	A Canon XA55 broadcast camera about 46 m from the tent reportedly recorded uncompressed 48 kHz audio on four channels, and an analysis claims it resolves three low-frequency events: Mach-cone energy at +114 ms, a muzzle blast at +202 ms placing a rifle ~120 m away, and a third, loudest event at +321 ms originating ~46 m from the camera — that is, at the tent
Raised by	Unattributed in the investigation file; associated with the Project Constitution and exploding-mic circle
First surfaced	Undated in source
Rests on	Anonymous post — no named analyst, no link, no raw audio, no re-runnable methodology
Evidence rating	SPECULATIVE

What is alleged

The analysis argues that phone recordings smear the event into one noise because their audio is compressed, while the Canon's uncompressed four-channel capture separates it. It claims the high frequencies arrived first, spread over 100-plus milliseconds, followed by a muzzle blast and then a detonation originating from the stage. The three events are given precisely: +114 ms Mach cone, +202 ms muzzle blast from ~120 m, and +321 ms a detonation at the stage which the analysis calls "the LOUDEST of the three" and "the strongest low-frequency peak in the entire recording," located approximately 46 m from the camera — "Right at the tent. Right were Charlie was seated."

Supporting numbers offered: the camera's shotgun microphone reportedly captured 733 supersonic N-wave signatures against 123 on the best phone recording, and reportedly clipped 122,844 audio samples because "the sound source was directly in its line of fire," while the built-in mics captured clean audio with almost zero clipping.

None of this is sourced. The file names no analyst, links no post, publishes no audio file, and describes no method another person could execute.

The ordinary explanation

The explanation is acoustics, and it is not exotic. The UVU courtyard is ringed by hard-faced buildings. A single supersonic rifle shot in that geometry produces a ballistic crack, a muzzle blast, and then multiple strong reflections arriving over hundreds of milliseconds. Three low-frequency events at +114, +202 and +321 ms is exactly what one shot in a reverberant courtyard sounds like.

An echo off the building behind the tent would, to a naive time-of-arrival calculation, appear to "originate" near the tent — because the calculation assumes a direct path and there isn't one. And a focused reflection off a flat façade can be louder at a given microphone than the direct blast, so "the loudest event must be the real event" is precisely the inference that reverberation defeats. "Uncompressed" does not equal "correctly analyzed." N-wave counting is not a standard forensic method with a published error model, and counting more of them on a better microphone is what a better microphone does.

And here is the irony this analysis cannot escape. Its own muzzle-blast figure puts the rifle at ~120 m, and it volunteers that an independent ten-camera analysis put it at 127 m — "within 6%." That distance is consistent with the Losee Center rooftop, which is where the state says the shot came from. The analysis being used to prove a bomb at the tent simultaneously corroborates a rifle exactly where the official account places it. You cannot bank the half you like and discard the half you don't.

What would settle it

1. Publish the raw, unedited Canon XA55 audio files with their original timecode and channel assignments.
2. Name the analyst and publish the methodology — window sizes, correlation method, assumed speed of sound, and how direct arrivals were separated from reflections.
3. Have an independent forensic acoustician with no stake in the case re-run the analysis blind.
4. Model the courtyard's reflective geometry and predict the reflection arrival times; if they land near +321 ms, the claim is answered.
5. Establish the camera's exact surveyed position, because every distance here depends on it.

Interesting In This Area

• The south-origin claim contradicts this page's own 120-metre rifle estimate.
• The under-shirt mic is what a tent-side detonation theory needs physically.
• Cause of Death notes campus reflections produce the same three-arrival pattern.
• The burnt object is the physical claim this audio argument is paired with.

Interesting In Other Areas

• The Canon XA55 stood about forty-six metres from the tent.
• Mic researchers read the same file as two sounds in two places.
• The two-event split is the strongest argument the roof was not the mechanism.
• The audio timeline tracks when each acoustic claim first appeared publicly.

Images

This is a still screenshot from a digital news broadcast, formatted for social media or a mobile video feed, featuring a close-up shot of a male spokesperson presenting at a podium. Full write-up →

This image shows a man dressed in green medical scrubs and a white lab coat being escorted outdoors by two security officers or law enforcement officials, with a third guard walking behind them. Full write-up →

This image is a close-up, cropped macro photograph of a printed document or digital screen displaying black sans-serif text on a light, off-white background. Full write-up →

This is a digital screenshot of a desktop or tablet web browser displaying a Google Maps satellite view of Tuba City Airport in Arizona, alongside an informational side panel. Full write-up →

This high-angle, wide-shot photograph captures a dense crowd of people, mostly young adults, gathered outdoors in front of a multi-story concrete building complex. Full write-up →

This eye-level, wide-angle daytime photograph captures an outdoor gathering or media event on a university campus plaza. Full write-up →

This eye-level, medium-wide interior photograph captures the third-row passenger seats of a modern vehicle, which are cluttered with stained paper bags and trash. Full write-up →

This high-angle interior photograph shows the third-row seating area of a modern SUV or minivan. Full write-up →

This is a satellite imagery screenshot captured from Google Earth, showing an aerial, top-down view of a suburban neighborhood. Full write-up →

This low-resolution, vertical-aspect image captures an outdoor physical altercation or tense confrontation between at least three individuals on a concrete pavement under bright daylight. Full write-up →

Videos

Footage related to this page. Each card opens that clip's own page, with the video, the full write-up, and its source.

Kirk On Iran: You Need To Have A Lot Of HumilityA 55-second broadcast clip, recirculated by The American Conservative, of Charlie Kirk arguing against military intervention in Iran and warning that humiliating the…

0:55

Other Pages In This Section

The Claim a Group Blocked University Security (Claims)

One numbered bullet, with the file's own author writing "Is that true" into the record as he wrote the claim down. No name, no footage, no date, and no description of what blocking would have meant.

Read this

The Executive Who Removed the Camera SD Card (Claims)

The file carries this claim twice and never reconciles the two versions: an unnamed executive in a bare numbered item, and a named allegation by Candace Owens. TPUSA has reportedly said police instructed the removal.

Read this

The Burnt Object as a RODE Transmitter (Claims)

Proponents zoom into a charred mass photographed in the SUV and read a melted audio jack and a warning symbol into it. The imagery cannot carry that weight, and the theory's own advocates cannot agree which RØDE model it was.

Read this

The Mic Placed Under, Not Over, the Shirt (Claims)

The RØDE transmitter was reportedly worn under Kirk's shirt, magnetically clasped through the fabric. That one detail is the precondition every contact-device theory needs — and it is also routine professional audio practice.

Read this

Elsewhere In The Investigation

Canon XA55 Broadcast Camera

The machine behind the audio — what it was, where it stood, and why uncompressed 48kHz capture resolves timing that phone codecs smear together. Read it before trusting or dismissing the acoustic analysis.

Read this

Canon XA55 Audio — Three Booms and Stage Detonation

Professional four-channel audio recorded about forty-six meters from the tent. Researchers say it separates a distant blast from a much louder event at the stage — two sounds, two places.

Read this

Acoustic Two-Event Split

Broadcast audio at 48 kHz reportedly separates a distant muzzle blast from a louder event about 46 meters away at the stage. Two sounds, two distances — and the fatal mechanism may not be the rooftop rifle.

Read this

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

Two clocks in one page — the millisecond acoustic sequence at 12:23:30 captured on the Canon XA55, and the month-by-month emergence of the transmitter, shirt-pull and burnt-object claims.

Read this

Sources

• Investigation file, section "Mic and Camera Canon XA55": the three-event breakdown, the 733 versus 123 N-wave figures, the 122,844 clipped samples, and the ~120 m versus 127 m comparison.
• No primary source, named analyst, URL, or audio file is cited in the investigation file for this analysis.

This website's author is @HolonCitizen on X and YouTube/@HolonCitizen. Follow me there.

Interesting

• A contractor says he was told the governor and FBI wanted the paving done by Monday.
• His own mentor says Kirk wrote "I know they want me dead".
• The fear predated 2025: he reportedly wrote he could be wiped out at any time.

Related Areas

• The tent, the stage and blood evidence
• The microphone theory and the RØDE transmitter
• The .30-06 energy mismatch argument

• Eyewitness mobile phone video
• The exploding microphone cover-up claims
• Cause of death analysis