SCP-XXXX's location prior to containment
Item #: SCP-XXXX
Object Class: Euclid
Special Containment Procedures: Site 203 is to be built on every square meter of SCP-XXXX's affected area, with soundproof walls and soundproof foam installed in every room of the site, in the appearance of a manufacturing company, under the name of "██████ Co.". Site 203 may be expanded, provided the land is purchased under ██████ Co. Every personnel must leave the site before 10 PM EST before foundation guards perform a final check to ensure there are no persons left in the facility. Due to the nature of SCP-XXXX, no other SCPs may be contained at site 203, as it is purely used for the research of [DATA EXPUNGED]. Should any instance of SCP-XXXX-C found within the facility, the body is to be incinerated. SCP-XXXX-B may not be recorded without Doctor Thomas' permission and testing may only be performed when there are either no electronics within the facility or all electronics confined to a room on the opposite side of the site of the testing room.
Description: SCP-XXXX refers to a phenomenon of which occurs in a small street, approximately 100m by 10m, located in ████████, ██████. SCP-XXXX lasts for exactly 5 hours and begins at midnight. During this time period, every electronic object, hereby known as instances of SCP-XXXX-A, will emit a high-pitched sound, hereby known as SCP-XXXX-B, which, as described as someone who has heard it, hereby known as SCP-XXXX-C, as beeping similar to those created by a heart rate monitor. SCP-XXXX-C does not need to be inside of SCP-XXXX's affected area to hear it. Regular animals, however, seem to not hear SCP-XXXX-B at all and do not react or be affected by its anomalous properties. SCP-XXXX's sound will take the properties of the objects where it manifests. If SCP-XXXX manifests in a small lightbulb, SCP-XXXX-B will be nearly silent. If SCP-XXXX manifests in speakers, SCP-XXXX-B will be heard through the speakers, being amplified to the speaker's maximum volume. SCP-XXXX prefers to manifest in such objects, rather than other ones that make less sound. For objects that are not supplied with electricity, SCP-XXXX can turn it on and manifest in them through anomalous means. SCP-XXXX does not appear to manifest in objects that are larger than 5 cubic meters.
After hearing SCP-XXXX-B, SCP-XXXX-C will start to gradually hear it louder and louder over the course of 20-30 seconds. This is not observed by onlookers. This suggests that SCP-XXXX-B does not increase in volume and rather effects SCP-XXXX-C through anomalous means. At the end of the elapsed time, SCP-XXXX-C's undergo cardiac arrest. Despite efforts to defibrillate SCP-XXXX-C, they will always die. The speed of which SCP-XXXX-C dies, and the pain of it apparently will depend on how SCP-XXXX-C hears SCP-XXXX-B. Barely hearing it due to either something in the ear or SCP-XXXX-B being softer, will result in SCP-XXXX-C being terminated within 4-6 minutes, the average time that brain cells stop working without oxygen. Hearing it at approximately ██ decibels, however, will result with SCP-XXXX-C perishing in less than 1 minute. This time can reach up to an hour if the sound is soft enough (see Test-XXXX-1). Although SCP-XXXX's anomalous properties may be confined to that street, if SCP-XXXX-B is recorded, the effect on SCP-XXXX-C still occurs if it were to hear it. To date, there is no known way to stop SCP-XXXX's effect on SCP-XXXX-C. The further use of SCP-XXXX on other SCPs is still pending. (see Test-XXXX-13, -17, -23, and -45)
Discovery: On ██/█3/██, SCP-XXXX was discovered, and manifested in a truck carrying several [DATA EXPUNGED] brand loudspeakers. It was reported and a squad of MTF Epsilon-6, "Village Idiots", was sent to contain it. A live feed was recorded from body cameras on each MTF operative. SCP-XXXX-B has been edited out.
>begin playback<
[1:48] MTF Epsilon-6 arrives in a transport vehicle outside of SCP-XXXX-A's area of sound.
[1:48] 01: Alright boys, this is an auditory SCP. Don't make any sudden moves towards it.
[1:48] 03: (sarcastically) Well crap, should've brought my earplugs.
[1:48] 04: Yeah, we were supposed to.
[1:49] 05: It's alright 03, I brought an extra pair!
[1:49] 03: Stuff a sock in it, 05. But, uh, give me them anyway.
[1:49] MTF Epsilon-6 exits the vehicle, and sees 14 bodies.
[1:50] 03: Mother of God.
[1:50] 05: Well that's… unsightly.
[1:50] 04: Oi, 01. How are we supposed to hear each other with these earplugs in?
[1:50] 01: We're not. We have to come up with a plan right here.
[1:50] 03: Ugh, why can't we just blow this thing up?
[1:50] 05: Idiot. We're containing an SCP item, we can't destroy it.
[1:50] 03: I was obviously joking 05, we-
[1:50] 02 is heard crying.
[1:50] 03: 02? Are you-
[1:51] 02 starts screaming and runs towards SCP-XXXX-A. The rest yell out for 02.
[1:51] 02's audio is cut out.
[1:52] 02 sees the diver of the truck, stops, and falls to the ground before it can make it to SCP-XXXX-A.
[1:52] 02 is terminated.
[1:52] 01: Chris!! Jesus Christ!!
[1:52] 03: [EXPLETIVE]
[1:52] The squad stares off in SCP-XXXX-A and 02's direction.
[1:53] 04: It's only been 5 minutes, too…
[1:53] The squad stands in silence.
[1:54] 03: He didn't die immediately.
[1:54] 04: What?
[1:54] 03: It took half a minute.
[1:54] 01: What are you implying, private?
[1:54] 03 pauses before responding.
[1:54] 03: Someone can turn it off before dying.
[1:54] 05: Well, look at that! 03's got some smarts.
[1:54] 02: But who's gonna do it?
[1:54] Silence.
[1:54] 04 sighs.
[1:54] 04: We all signed up for this. If no one's gonna, let me do it.
[1:55] The rest nod.
[1:57] 04's audio is cut out.
[1:58] 01: I'm not gonna watch more of this.
[1:58] 01 returns to the transport vehicle, while 03 and 05 look on.
[1:58] 04 runs makes it to the truck and turns off the vehicle. On 03 and 05's cameras. 04 is shown waving at them and collapses.
[1:59] 04 is terminated. 03 and 05 keep looking, seemingly in horror.
[1:60] 03 and 05's audio is cut.
[1:60] All of the loudspeakers in the truck's cargo turn on, and 03 and 05 hear SCP-XXXX-B. 04 turns to 03.
[1:60] 03 is seen mouthing words before both of their eardrums explode.
[1:62] 03 and 05 are terminated.
[1:63] 01 calls for backup, and leaves the scene.
Notes: At that point in time, the foundation thought SCP-XXXX as the truck, not an instance of SCP-XXXX-A. Another MTF squad was sent to destroy the speakers from afar, and removal of all the instances of SCP-XXXX-C has been approved. D-Class Personnel watching and editing the feed has indeed been terminated by SCP-XXXX. 01 informs the foundation that 02's wife had been driving the vehicle, and 02 had come along knowing this information. Later that day, 01 resigned as an MTF operative.
Addendum-XXXX-B: The following are multiple tests done to accurately create a description file and containment procedures for SCP-XXXX. Since Test-XXXX-3, Doctor Caringal, head researcher of SCP-XXXX, has terminated testing for SCP-XXXX.
Subject: D-37291
Procedure: D-37291 was sent to discover which object SCP-XXXX has manifested in, and possibly remove all objects from the anomalous area of SCP-XXXX.
Results: D-37291, despite orders to not, picked up a broken lightbulb lying on the road and raised it to his ear. The lightbulb was an instance of SCP-XXXX-A, and D-37291 was terminated. The termination in question took one hour, one of the longest cases of death.
Analysis: Although one cannot hear SCP-4021-B without being terminated, it is thought because SCP-XXXX manifested in such a small object, SCP-XXXX-B was incredibly soft, and therefore D-37291 was killed slower than initially theorized.
Subject: D-28407
Procedure: D-28407 was instructed to listen to SCP-XXXX-B (SCP-XXXX-A at the time of the test was a broken phone) and describe it.
Results: A transcript has been written, as to avoid more casualties by editing a feed, as per request of Junior Doctor Caringal.
Doctor Caringal: D-28407, please describe what you're hearing.
D-28407: Huh. It kinda sounds like a beeping from one of those heart—machines, uh, you know, those ones in the hospital.
Doctor Caringal: A heart rate monitor?
D-28407: Uh, yeah, that's… right. (D-28407 scratches at his ear)
Doctor Caringal: D-28407? Are you alright?
D-28407 makes no response but keeps eye contact with Doctor Caringal.
Doctor Caringal: D-28407? D-28407?!
D-28407: Yeah! Yeah! I hear ya, It's just that it's getting a little louder, even though I put down the bag. Oh god, It's getting really loud!
Doctor Caringal: (Turns around and looks at transcriber) D-28407, thank you for your cooperation, but it seems like your time is up.
D-28407: What?! I can't- I can't hear what- (D-28407 grabs his chest and falls to the ground.) OH ████!!
Doctor Caringal: Christ…
D-28407 dies after 5 minutes after cardiac arrest.
Analysis: Because SCP-XXXX-B was described as a heart rate monitor, the foundation has conducted an investigation about the street and the town it is located in. The history of █████ has been added to the SCP-XXXX document.
[DATA EXPUNGED]
Note from Junior Doctor Caringal: I don't care if more tests yield more information about this goddamn ghost. Even if it did, the containment procedures wouldn't change. We're talking about a "blemish" that cost us almost ████ lives! I'm not going to let anything like that happen again. Testing for SCP-XXXX is now prohibited.
History: A small hospital, named ██████ ████████, was once built on the affected area of SCP-XXXX. It was notorious for letting patients die due to human ignorance and/or being understaffed. On ██/██/██, at midnight, Nurse ██████ set fire to the hospital, killing almost every patient inside. When questioned why, she answered, "Hearing those heart rate monitors beep day after day, week after week feels like I can hear each one louder and louder. That night, I felt like if I heard another flatline, I'd end up in one of those hospital beds."
Further investigation is required.
Note from 05-█: Junior Doctor Caringal clearly is not ready to be a head researcher of any SCP, so he'll be demoted back to Assistant Doctor Caringal. He has been replaced with Doctor Thomas. The notes that Junior Doctor Caringal has made is overruled. Testing has been continued and is approved for other SCPs.
Addendum-XXXX-B-2: These are continued tests for SCP-XXXX. In these tests, 4 loudspeakers are to be placed in each corner of the containment chamber, and each one will simultaneously play a recording of SCP-XXXX-B for 1 second at approximately ██ decibels. Each recording was sent to each site the subject was located in. Every test that does not include an SCP has been cut for brevity, as not much was discovered from them.
Subject: SCP-682
Results: 10 seconds after SCP-XXXX-B is played, SCP-682 stares at one of the loudspeakers, roars, and destroys all 4 loudspeakers. SCP-682 then attempts to breach containment for 15 more seconds. SCP-682 then yells loudly, "YOU SONSSsss of…", then stops. It fell to the ground and it's breathing slowed until it stopped. As a biometric scan was taking place, SCP-682 woke up and killed everyone in the chamber.
Analysis: Although the complete scan was not complete, the partial scan did show that SCP-682's heart indeed had an abnormal heart rhythm, showing signs of cardiac arrest, but despite this, its brain was still functioning.
Note from Doctor Thomas: Damn, of course that didn't work. Back to the drawing board.
Subject: SCP-939-██
Results: Immediately after SCP-XXXX-B was played, SCP-939-██ motioned its head in several directions. 20 seconds later, SCP-939-██ opened its mouth and a voice said, "Oh my god! Someone, please help!". 10 more seconds pass, and its chest burst open violently. SCP-939-██ was terminated.
Analysis: An autopsy revealed that it no longer had a heart, but tissue that was expelled from the body about 3 meters away, presumably from its chest exploding, that the heart exploded so violently, it burst through its chest.
Subject: SCP-173
Results: N/A
Note from Doctor Thomas: I was expecting this. "Just do it," they said. "You'll never know what'll happen after the last test," they said. It doesn't have any ears, for the love of god!
Test-XXXX-7
Subject: SCP-096
Results: Over the course of 30 seconds after SCP-XXXX-B was played, SCP-096 started to scream louder and louder while appearing more and more distressed. When the elapsed time ended, SCP-096 ceased screaming and movement, still in the fetal position. 5 more seconds pass, and SCP-096 suddenly resumed into a rage state and breached containment, causing 8 casualties. It was returned to containment without further incidence.
Addendum-XXXX-B-3: Test-XXXX-3's data had been expunged by Junior Doctor Caringal but has been recovered by Doctor Thomas, the reason being that there is no reason for the test to be off the document.
Test-XXXX-3
Subject: SCP-079
Procedure: SCP-079 has been fitted with a microphone with no speakers. SCP-XXXX-B is played through a █████ brand speaker for one second. The purpose of this test is to see if non-organic but sentient beings can be affected by SCP-XXXX-B.
Results: One minute after SCP-XXXX-B was played, it was thought that SCP-079 was not affected by it. 2 minutes later, after the microphone had been uninstalled, SCP-████ breached containment in the same site SCP-079 was located, site 15. The site was put into lockdown and the recontianment of SCP-████ begun. During the chaos of the containment breach, Head Scientist ██████ then plugged SCP-079 into a wall outlet, then shot himself. SCP-XXXX-B then started to play on every radio in the facility. 30 seconds later, about 60% of all personnel, or 100% of all personnel recontaining SCP-████, underwent cardiac arrest. The other 40% were forced to hide or be killed. The lockdown was able to maintain the containment of every other SCP while MTF Epsilon-11, "Nine-Tailed Fox", arrived nearly 2 hours later, where both SCPs were recontained.
Analysis: Upon the review of the recording of the test and the containment breach, SCP-079 played SCP-XXXX-B on the PA system until all personnel were terminated. It is currently unknown why Head Scientist ██████ released SCP-079 but according to his personal records, he attended the same college as the creator of SCP-079, █████ ██████.
Note from Junior Doctor Caringal: I don't care if more tests yield more information about this goddamn ghost. Even if it did, the containment procedures wouldn't change. We're talking about a "blemish" that costed us almost 2000 lives! I'm not going to let anything like that happen again. Testing for SCP-XXXX is now prohibited.
Note from Doctor Thomas: Sorry, Caringal. I needed to add this to the document. As the test demonstrates, if the wrong hands got SCP-XXXX-B, we could lose even more lives. However, we cannot allow an unfortunate coincidence to stop us from knowing how this thing ticks.
Per 
