🧵 Untitled Thread
Anonymous at Wed, 17 Jul 2024 18:19:53 UTC No. 16285351
How does audio forensics work? Does every individual gun really have an "audio fingerprint"?
How come guns of the same make & model don't have the same audio fingerprint? Does the choice of ammo change the audio fingerprint?
Anonymous at Wed, 17 Jul 2024 21:39:52 UTC No. 16285590
>>16285351
Terrain and distance from the microphone shape the noise the microphone picks up. Guns in different positions in the environment and different distances from the microphone will have unique sound characteristics, even if they are all the same kind of gun.
Anonymous at Thu, 18 Jul 2024 15:41:17 UTC No. 16287343
>>16285351
On Twitter, "fired at Trump rally" is being transformed into "fired at Trump." Chuddies gonna chud. The actual analysis includes the weapons used to kill the would-be assassin, i.e., away from Trump.
Anonymous at Thu, 18 Jul 2024 16:31:22 UTC No. 16287413
>>16287343
If so, why does this article exist? I think common sense would dictate that the shooter plus at least 2 snipers used their weapons during an assassination attempt.
Anonymous at Thu, 18 Jul 2024 17:10:17 UTC No. 16287449
>>16285351
>cnn
It means you're suffering from brain rot.
Anonymous at Fri, 19 Jul 2024 05:23:53 UTC No. 16288090
Anonymous at Fri, 19 Jul 2024 07:04:38 UTC No. 16288163
>>16288090
holy shit, imagine letting that troon post break your mind
get help, anon
Anonymous at Sat, 20 Jul 2024 03:39:17 UTC No. 16289201
nobody on /sci/ is smart enough to understand how audio forensics works.
lol
this is the same group of people who rant endlessly about how they understand how the entire universe works, but they can't even figure out this one little topic
Anonymous at Sat, 20 Jul 2024 04:41:09 UTC No. 16289247
>>16285351
it's all snake oil. there are tons of these fads in forensics, they just exist to provide scientific rubberstamps for cases where the only real evidence is viewed as unlikely to convince a jury.
Anonymous at Sat, 20 Jul 2024 06:03:17 UTC No. 16289288
>>16285351
theoretically, each individual weapon (considering none of them moved large distances in between shots) would all have a relative frequency response that’s dictated by their proximity to the recorder. further away, duller sound due to shorter wavelengths .
Anonymous at Sun, 21 Jul 2024 06:53:37 UTC No. 16290539
>>16289288
>further away, duller sound due to shorter wavelengths.
why do wavelengths shorten as distance increases? shouldn't the hubble expansion cause the opposite effect?
Anonymous at Mon, 22 Jul 2024 04:54:05 UTC No. 16291790
>as many as three
if audio forensics worked then it wouldn't be so indecisive
Anonymous at Mon, 22 Jul 2024 05:06:51 UTC No. 16291799
>>16285351
>1. look for spectrogram peak
>2. estimate bullet velocity and distance
>3. check to see if a second spectrogram peak appears roughly however many milliseconds it should take bullet to travel from NEETO to Cheeto Bandito
>4. ????
>5. PROFIT!
Anonymous at Tue, 23 Jul 2024 08:36:32 UTC No. 16293201
, you might need it,
Anonymous at Tue, 23 Jul 2024 08:46:31 UTC No. 16293212
>>16285351
how do 3 gunmans all miss?
I mean i'm sure it was an inside job, but the inside job ended at secret service giving a clear path for the shooter.
The shooter was a 20 yo virgin loser that cant take the easiest shot of his life.
Unless the other 2 shooters where DEI hires LOL
Anonymous at Wed, 24 Jul 2024 06:20:44 UTC No. 16294394
>>16293212
>The shooter was a 20 yo virgin loser that cant take the easiest shot of his life.
he was already known to be a bad shot before this incident
Anonymous at Wed, 24 Jul 2024 19:06:53 UTC No. 16295045
>>16285351
>forensics
I read foreskins, the way foreskins work is, if you have them, you do, else you wait until you have them
Anonymous at Thu, 25 Jul 2024 02:44:26 UTC No. 16295554
>>16285351
>bullet travel faster than sound
>sound has measurable speed
>measure difference in time between sound of bullet firing and sound of the bullet going by to calculate distance the shot was taken from
>when measurements between shots have different values then either shots are being taken at different distances or shooter is teleporting instantaneously between firing locations
>use brain to determine which situation is more likely
Anonymous at Fri, 26 Jul 2024 01:34:35 UTC No. 16296782
>>16295045
>the way foreskins work is, if you have them, you do, else you wish you had them instead of having a useless cripplecock or a bleeding vagina
Anonymous at Fri, 26 Jul 2024 22:21:49 UTC No. 16297989
>>16293212
The SS snipers who were told to take out the ZOG patsy assassin didn't miss, they did the same job Jack Rubenstein did for the JFK assassination perfectly. The most important witness to the conspiracy was eliminated before he could talk.
Anonymous at Fri, 26 Jul 2024 22:32:09 UTC No. 16298008
>>16285351
Fire a gun 20x and record it. Now fire a different gun. Does it sound different?
Anonymous at Sat, 27 Jul 2024 19:48:42 UTC No. 16299339
on recording from Trump's mic all 8 shots sound similar apart from last one which is different and shot by snipers.
on recordings from phones which change orientation between first and second groups of shots they might "sound" different.
Anonymous at Sat, 27 Jul 2024 19:49:32 UTC No. 16299341
>>16298008
do all 20x shots sound exactly the same? what if the wind changes between shots? what if all the shots aren't made with the same kind of bullet? what if the direction the barrel is pointed changes between shots?
Anonymous at Mon, 29 Jul 2024 04:10:48 UTC No. 16301369
Anonymous at Mon, 29 Jul 2024 04:44:14 UTC No. 16301413
Anonymous at Mon, 29 Jul 2024 04:59:41 UTC No. 16301429
>>16301413
Bad example because the AI was trained on data that existed before the Trump assassination attempt. It's not being actively updated every time there's a breaking news story. That's why it says there's no verified information on it, because there is none in the dataset it's running on.
Anonymous at Mon, 29 Jul 2024 15:56:20 UTC No. 16301933
Anonymous at Mon, 29 Jul 2024 20:07:19 UTC No. 16302337
>>16302331
>not a single one of them wearing N100-level respirators that actually block viruses
Anonymous at Wed, 31 Jul 2024 01:35:18 UTC No. 16304030
>>16303945
Tranny-kun, naze?
Anonymous at Thu, 1 Aug 2024 02:49:48 UTC No. 16305376
>>16303945
Its amazing how when it comes to courtroom work the FBI can always positively identify which gun a recovered bullet came from, but in this case its all a big mystery. Either they're lying here or they've been lying in court cases for the past half century+
Anonymous at Fri, 2 Aug 2024 04:34:45 UTC No. 16306587
>>16305376
>Either they're lying here or they've been lying in court cases for the past half century+
why not both?
🗑️ Anonymous at Fri, 2 Aug 2024 04:40:55 UTC No. 16306592
I know this isn't a popular opinion, but can we just fucking ban guns already?
I'm tired of people thinking I'm some sort of serial killer just because I'm a neurotic introverted man.
Anonymous at Sat, 3 Aug 2024 20:28:32 UTC No. 16308875
Forensics take great care to compare individuals. If they
studied the variation of features in the population, they
could quantify their error rates instead of the usual
"nearly impossible"
https://www.fbi.gov/file-repository
Anonymous at Sun, 4 Aug 2024 18:20:50 UTC No. 16310002
>>16306592
what we really need to do is lock up the mentally in insane asylums like the good old days
Anonymous at Sun, 4 Aug 2024 21:29:00 UTC No. 16310246
>>16287413
Clickbait
Anonymous at Tue, 6 Aug 2024 06:12:35 UTC No. 16311854
amazing how this event has been completely buried by the mainstream press so quickly after it happened
Anonymous at Wed, 7 Aug 2024 03:51:24 UTC No. 16312993
>>16285351
given that ever shot leaves residue in the barrel and wears down the rifling, guns should not have reliable "audio fingerprints"
Anonymous at Thu, 8 Aug 2024 04:29:28 UTC No. 16314567
>>16285351
nobody at cnn has any idea how guns work
Anonymous at Fri, 9 Aug 2024 04:42:41 UTC No. 16316279
>>16314567
good pic, lol
Anonymous at Fri, 9 Aug 2024 22:53:48 UTC No. 16317753
>>16285351
seems like nobody on /sci/ understands this technology or has any idea how it might work
Anonymous at Sat, 10 Aug 2024 19:22:49 UTC No. 16318995
>>16317753
Unfortunate. Why is /sci/ so ignorant?
Anonymous at Sat, 10 Aug 2024 19:25:43 UTC No. 16318999
>>16288163
>>>/pol/
You have to go back.
Anonymous at Sat, 10 Aug 2024 20:11:58 UTC No. 16319062
>>16285351
Use brain.
Common sense tells me audio ”fingerprint” is heavily based on:
- location of the fired guns relative to the recording device (affects volume of fired shots relative to the irrelevant noise)
- Distance the bullet travels
- Depending on the location of the device it can pickup the sound of the bullet impact
- Depending on the environment it can pickup an echo
- Fire rate of the gun
- Signatures in the waveform of the recording (same gun should have similar peak in it’s shots as long as the recording device is still and the shots are fired from a still position)
I’m sure I’m missing something more nieche, but this is what most of it should be(?). Noisy environment, moving recorder, moving shooter makes it quite irreliable. But even then when you pair it with the facts gathered from other forensics, conclusions could be made to identify undiscovered or unconfirmed information.
Anonymous at Sat, 10 Aug 2024 20:20:54 UTC No. 16319077
>>16319062
>Same gun should have similar peak in its shots as long as the recording device is still and the shots are fired from a still position
Additional variables: If there are multiple guns in the same position. If gun with similar signature is fired from an equal distance. (But these facts should usually already be gathered from other types of forensics and analysis)
Anonymous at Sat, 10 Aug 2024 20:30:06 UTC No. 16319083
>>16319077
Wait I just read the thread why am I even talking. I am not claiming an audio fingerprint in the retarded way exists. No there is not a magic frequency attributed to every gun that we can identify from complex audio. I was talking about audio forensics in general.
Anonymous at Sun, 11 Aug 2024 05:14:24 UTC No. 16319538
>>16285351
It is probably like arson investigations. They pay some windbag to larp as an expert in court and.say every stain on the floor is accelerant.
Anonymous at Sun, 11 Aug 2024 22:25:54 UTC No. 16320607
>>16285351
>Does every individual gun really have an "audio fingerprint"?
no, any echoes will affect whatever sound waves are recorded, same goes for sound wave refraction, same gun will produce different fingerprints depending on the firing location.
Anonymous at Tue, 13 Aug 2024 20:17:51 UTC No. 16323969
>>16321874
bump fire requires no special equipment, just a tight grip on the trigger and loose grip on the rest of the gun
Anonymous at Wed, 14 Aug 2024 05:08:07 UTC No. 16324642
>>16323969
Is it illegal to do bump fire without the purpose built stock? What if you use a rubber band instead, does the rubber band suddenly become illegal?
Anonymous at Thu, 15 Aug 2024 02:31:35 UTC No. 16326238
>>16321874
surprising they didn't include an extended mag
Anonymous at Thu, 15 Aug 2024 21:31:07 UTC No. 16328005
>>16326238
They probably think they did