Detecting ultrasound, 21-22 khz, 25-65 dB, for last 24 hours

I don’t have anything really helpful to say, but for some reason I find this thread fascinating.

I hope you get some relief soon.

There's a huge spike on the spectrum around 21.5 KHz on mine. Hovering at 30 dB all day except once in a while someone plays with it. I can hear those adjustments. Nothing else on the spectrum unless I breath, lol. It does a good job ignoring everything below that 17KHz threshold and the noise floor. It looks about 3KHz wide. Possibly multiple emitters. The S/R is around 49-52dB.

Thanks op. I pray you have a good night darling. Will check thread tomorrow.

thanks for sharing your findings OP ... there are several ways to shield yourself ... lessemf.com has, clothing and meters ...It even has paint and curtains to block unwanted frequencies ... canopy s to sleep under

I hear the frequencies too, because I haven't been "de-synthesized" - I live perfectly fine, withOut WIFI or "smart devices" and I'm outside of the Matrix

there is plenty to hear - being aware of frequencies is key to maintain well-being and I have taken steps to protect myself from being "experimented" on

personally RV life, would be better than exposure to manipulative frequencies being broadcasted by cell towers in the Metros, and amplified by alum particles ... that can also be breathed in - along with, only the gods know, they might also add in the spray ...

I filter my water, my air and my emfs ... I'm not going to just sit here and let them fracture my Consciousness, and alter my DNA

Thanks. I have put up RF shielding, not covering an entire room, but just protecting me from direct line-of-sight outside RF exposure to the closest and greatest source of cellular and WiFi signals .. to my south. The north hasn't been bad, the neighborhood is in that direction.

I'm along the southern edge of the neighborhood, with a commercial property beyond my back yard, the mysterious troublesome noisy inconsiderate neighbor building from which emanates a lot of mysterious mischief and hacking.

I'm out of theories about what's going on, why they are doing this. I've spoken to various government authorities, met with some too, seeking help, like the guys from the BCA. I get the same old story. Assistance request must come through your local police department for this type of thing. And, as I've mentioned above, I've been threatened to NEVER call 911 again about anything I see going on with that building OR ELSE! Threats came from guys that said they were police but never showed any proof. And when does a cop tell you to not call 911 concerning illegal activity beyond your back yard?

Pretty quiet now expect for that name 21KHz noise maker. Still at 39dB tonight, unlike last night. At 65dB, you feel the need to get away, seek shelter. I can crawl under my foam mattress on my bed for some relief, but you can't leave any gap, the sound screams in. Plugging your ears is no help, the sound resonates through your head.

oops meant to say 30dB just above.

That app I'm using is nice, I'll have to 5 star it and write a review, but I should download a more recent version. I'm using an older version, maybe a year old, but I'm always suspicious downloading anything now since I got infected once with bad hacked apps from a fake edge server for Google Play.

Anyhow, I can set an alarm in this detector app and go to sleep and it will wake me up if an alarm triggers. Usually any loud ultrasound noise should wake me up, but maybe not if I'm exceedingly tired. And because I think there's multiple emitters making this noise, and no 2 seemingly on exactly the same frequency, that causes binaural beats which can alter your brain wave activity, even put and keep you asleep.

My gawd, will the tooth fairy sneak in and give me the coronas while I'm wirelessly sedated?

No status change on the noise tonight, yet. Still 21.5KHz sounds waves @ 32-34dB.

Another observation .. there have been a few times when I thought I hear it getting louder, but I'm seeing no change on the detector app. This has me wondering what the limit of this app is running on my Note 9. I'm not sure if I noticed anything at 23.0 KHz or higher frequency. I'll have to watch for that. I'm not sure what I might have that can generate that high of a tone to test with. This seemingly change in loudness that's not registering could be caused by binaural beats too.

A lot of electronics has inductor coils that can Whine, good electronics engineers will design a circuit so that the coil whine is above human hearing range, sometimes they don't always get it as high as they like.

I could always hear the high pitched noise CRTs made, used to drive me a bit mad. Now I'm older I can only hear up to 16.2Khz.

I hear the shit too. It's gangstalking shit.

No. If you are being hit by cel tower pollution, you may well perceive a sound, like an old CRT TV high pitched screech, but you won't be able to record it, because you aren't actually hearing a sound so much as your ear parts happen to be resonating off of much higher frequency pulsing. Well, I guess you could say you are technically hearing it. :-) but the microphone can't. Also, you can feel your skin crawling especially in the scalp like you have to wash your head 3 times a day.

I wonder if anyone ever invented a microphone that behaves as 'microwave auditory effect' does? Maybe then those of us that hear it can show the rest that can' in an appeal to make ti stop driving us bat shit crazy.

It's a gang alright.

Update: around 4 AM the intensity of the ultrasound noise has dropped a few dB. I heard it, and that was reflected in the app display too.

Another thing that I noticed .. first, it gets chilly here in this basement room I'm in at night. It's half below ground, shielding me from RF, so it's where I hang out. Anyhow, I turned on a space heater and I noticed that as the fan begins to start up, it emits a high pitched whine for a few seconds that anyone can hear. This only happens when that ultrasound noise is flooding the neighborhood at the same time. I've noticed it a few times but wasn't convinced it was more than a coincidence until I noticed it happens all the time. There's also 5 halogen light bulbs in a fixture that make a humming noise too when this is going on too. Is that crazy or what?

This is without doubt ultrasound. I'm using 2 devices that can hear and measure it using mics (one having condenser mics, the other a Note 9 running an app). The night before it was cycling up and down in intensity from around 30dB up to 65dB. What I heard chained to everything that app was displaying and what the level meters were indicating on the other device.

Now it's possible there are other strong signals which aren't sound, and I have RF meters good up to 6 GHz, and I have an SDR transceiver (20 mhz wide reception and IQ recording) that's good up to 6 GHz too for checking and measuring that. But I haven't been monitoring RF while stumped by this ultrasound harassment or whatever it is though.

This is certainly ultrasound, and it's resonating in physical stuff too. It is causing gurgling in my stomach too, and my cat. And other stuff is effected, like that high pitched humming tone from these old school halogen bulbs when the house is flooded with these ultrasound waves. My cat immediately runs to a safe box I made for her. I piled foam and blankets and pillows all around it and it's much quieter in there for her.

Join the club. Their spying on you. Same thing I'm going through and their not hiding it either. Their only making me more weak. Good thing I didn't get my last brain surgery. I had pictures of their SUVS stopping in front of my house but they hacked in my google and deleted it from the drive. They make your chest hurt too by squeezing it.

If anyone wants to test theirs, I was ironically just looking this up earlier tonight. I don’t even know what made me do it! I can only hear the one up to 15.8. After that, just the little starting & ending clicks.

[link to www.ultrasonic-ringtones.com (secure)]

I don’t have an Android but my roommate does, I’m curious to try that app you mentioned above.

I wonder if on some level, I keep thinking I’m hearing something and that’s why I got to thinking about it earlier. I’ve seen quite a few posts in here recently about people saying their ears are ringing.

That Ultrasound Detector doesn't seem to detect much running on my Note 8, a little, but no .. that was a fail. But it does great on my Note 9. My Samsung Tab S4 just didn't seem to want to run fast enough to handle it, but I had some other tasks running at the time so I'll try later while they aren't running.

I think it's probably worth a couple hundred bucks buying a real directional ultrasound locator device. There have been other times I could have used one.

Anyhow, a short while ago I noticed a change in the ultrasound noise. I'm detecting what seems like additional emitters coming on at same intensity as others. I'm seeing occasional 2 peaks within a few KHz of bandwidth around 20.5 KHz and other odd waveform patterns. The intensity is varying a few dB also. Uncertain what is going on now. It has just gone from constant to kind of random all over the place within that 3 KHz and 3 dB window around 21.5 KHz and 30 dB.

I don't know what to make of it, d usual. It even sounds like signals inverting at times too, kind of like 2 soundwaves colliding, i.e. when you hook up one stereo speaker in reverse polarity but not the other.

So I had to get up and move to the other size of the house. Even a mystery car showed up about as close as one can get to the corner room I was in a parking lot nearby. I wasn't paying attention so I don't know if it showed up just before things seemed to get louder, or after it started. In any case, I got up and moved to the furthest corner in the house away from that and it did get noticable quieter. The signal is back to where it was before that 3KHz & 3dB window of random deviation began.

I went bald scratching my head yesterday. Today I think it will start to bleed, lol.

Also, it's VERY MUCH quiet outside today than yesterday. Maybe more people are starting home. Maybe more got sick. We're into that 2 week window where they say things could get much worse, like NYC.

Everything is just weird now.

Engineer here. I do agree that there have been high pitched tones causing low g4ade tinnitus all over.

However, detection method is flawed. The ultrasound detector gives false results without an ultrasonic mic. Samsung phone mics roll off @ 18khz. Your decibel rating could be up to 4 times louder in real life.

OP maybe its this
Thread: Uncle Intel: Mossad Looking for the original Vaccine created together with the Virus

They are using Specific freq to disable the virus?
But what about the battery and or transmitter? What would that do if it were in the vaccine as well? What sort of information or frequency is it designed to "receive"?

I believe Amazing Polly has done a most excellent video of Epstein and his mad scientists and their research.

The virus is dangerous and deadly-but like ALL living organisms it has a life frequency and a death frequency. Dr. Rife proved this, modern cancer research is proving this. And this would in fact be an overall cure. Imagine blasting the "death frequency" over all possible networks?

"magically go away" yes-if the correct killing frequency is broadcast. I've poked around a bit and feel that any frequency sequence must include healing ACE, killing ADE, HIV aspects as well as (most important) KILLING prevotella phage. It's going to be a range of frequencies and this is only going to work with people smart enough to realize-they need to "listen".

Before this can even be introduced a LOT of people are going to have to die. Sadly there are too many NPCs who would endanger everyone by calling this a bullshit and refusing to listen/comply. One need only look at the hoaxtards to realize this. In this way the collective IQ of the entire world will be raised. (sorry but it's true). Can you imagine Trump telling people to sit down and listen to freqs NOW? Imagine the howling. Israel will scream the loudest. BTW they haven't sorted this because they are not nearly as "smart" as they want you to believe and like China, without tech stolen from more intelligent advanced societies they'd not even have radio. Sad but true.

This would be a good place to start.
[link to streams.printf.cc]
[link to streams.printf.cc]
But the virus has changed a lot so--the frequency sequence must be variable to cover mutations. Wobble, sawtooth-etc-to cover the complete range of possible mutations.

Interrupting the "program" that people are running that makes them incapable of true change (IE the YOU not ME program, or in Israel as an example, the "exceptionalist/chosen program) is also important but I feel that will be dealt with via death. Sorry-there appears to be no other option. People such as Qtards are not going to ever look within (again just using them as an example, these same ideologies exist across the board in different cohorts).

Mysterious people, doing mysterious things..... now you sound like a loon.

Stockton, CA here. No reader here but everyone here can hear it and is equally as stressed out.

Bump

These 21KHz ultrasound tones I'm detecting in the neighborhood and elsewhere now WILL make people sick around here. Most won't hear it, and they'll call the few that can nut cases. Then these sick begin to wonder if they have the coronas, so they call they doctor. Doctor says okay, come in, get tested. And when they go to get tested, they are tested with those test kits that were found to be contaminated with the coronas that I read about. Then they send them home to spread it around.

DO NOT GO NEAR A HOSPITAL! OR ANYONE!

SOMETHING SERIOUSLY SINISTER IS GOING ON.

yeah, I realize that after playing around. But what I'm seeing around 21 KHz does correspond DIRECTLY to what I'm hearing. But frequency spread could be higher because their a sharp cutoff slope on the spectrum graph at around 22.8 KHz. But sometimes it moves down in frequency and the slopes are gradual on both ends. It hasn't detected anything above that 22.8 KHz. And this is on my Note 9. My Note 8 fails detecting that high, and that does appear to cut off at around 18 KHz. The Note 9 mic seems to cut off at 22.8 KHz .. or the software fails above that.

Anyhow, I'm very certain that what I'm seeing on the graph represents what I'm hearing. No doubt remains. Whether that's actually 21 KHz and the dB level is accurate isn't important in this test. This test confirms ultrasound. Now I need to buy a real detector. That I must research more to get best device for my money.

Maybe this is some sinister plot to kill everyone that can hear ultrasound and 5G, etc. Those would be the people that will be leading this war against all this RF NOISE pollution. You can't live with those noises in your head. You just can't, not for long.

It just seems so suspicious that on the same day they said the next 2 weeks will determine if we become as infected as NYC .... AND ... I started hearing these tones .. AND ... on the very first night is was SO F'N LOUD .. sweeping from 30dB up to 65dB every 30 minutes all night long. I was feeling .. not so we'll by morning. Sane with my cat. I think I even passed out because I woke up 4 hours later and was still in the middle of what I hadn't finished doing 4 hours ago.

I put up an SSID stating "STOP THE 21KHz HARASSMENT."

I've been into audio for decades and as far as I know ultrasound cannot travel through walls or solid surfaces.

After I did this, someone, something, did start playing around with whatever is generating these ultrasounds. It seemed like it got a tiny bit quieter, but not much. The sound took on more of a hiss quality than the very high pitched ringing I'm hearing. This WILL make you feel nauseated. I'm feeling it myself now. Without a doubt, someone is harassing the neighborhood. Could someone be trying to kill me? I am just at a loss to understand wtf is going on. All I can do is wait and see. Can't, shouldn't, go anywhere. Shelter in place. And I'm at higher risk too. ... sigh .. maybe the neighbors will get fed up with this crap but they probably don't hear it. They should be feeling it though.