Hey,

What do you guys think? What kind of speaker could it be?

Nearly every day me and my neighbor tend to leave for work at roughly the same time. He tends to stay behind my car and is not close, however I have been starting to feel high frequencies coming from his car?? I cannot hear it but feel it. It only started after some minor fence dispute.

Does anyone know what it could be?

 

No disrespect intended but I think it is just your imagination. That you think it started after a dispute strengthens my conviction that you are interpreting something (which could be purely internal, or could be something coming from your own vehicle you never noticed before) as related to the neighbor.

If you want to convince yourself this isn't a real thing, the best bet is to record information on paper or your phone so you can avoid confirmation bias—that is, the tendency every person has to select evidence that confirms our beliefs—and you are sure to find that it isn't supported.

This sort of response is pretty normal, don't let it run away with your imagination. Your neighbor is a normal guy doing nothing secret, it just feels that way right now. Careful attempts to debunk rather than confirm this will relieve your anxiety.

Good luck.

 

Greetings,

I recently used an sound meter and it did confirm my suspicious, at the moment I'm curious about how they are doing this.

 

Greetings,

I recently used an sound meter and it did confirm my suspicious, at the moment I'm curious about how they are doing this.

Which "sound meter" did you use? What did it measure? How did you distinguish the source?

 

Infrasound app via mobile, it went above the recommended standards and as soon as he left, it went back to normal. I can feel the source but not hear. I can wondering what kind of speaker could do this?

 

Infrasound app via mobile, it went above the recommended standards and as soon as he left, it went back to normal. I can feel the source but not hear. I can wondering what kind of speaker could do this?

That app claims to detect frequencies below 30hz. Those are very low frequencies, not high ones. The microphone on your phone is not going to be very good at detecting such low frequencies, and the amplitude would have to be very high if the source was from a vehicle following "not too closely".

If there is any correlation, it might be from the other cars engine, but that doesn't seem very likely. If he was generating infrasonic signals loud enough for your phone, in your car, to detect he would be much worse off than anything he could do to you with them being far closer.

I am very, very skeptical about what you've "measured". In the friendliest possible way, with the great hope of helping, I would recommend you become skeptical too and find ways to debunk rather than confirm your suspicions. They don't make technical sense, and the evidence you have so far is very dodgy.

I am going to leave you to it, I don't want to become negative. Good luck with it, and I hope you resolve it quickly.

 

Greetings,

I recently used an sound meter and it did confirm my suspicious, at the moment I'm curious about how they are doing this.

Who are "they"? Or you intended to say "he"?
Confused.

 

I can wondering what kind of speaker could do this?

Ordinary loudspeakers in cars are usually mounted in the doors and can therefore excite various door/body panel resonances, some of which may be in the sub-audio range. Your 'stalker' probably just had his entertainment system on loud.

 

Ordinary loudspeakers in cars are usually mounted in the doors and can therefore excite various door/body panel resonances, some of which may be in the sub-audio range. Your 'stalker' probably just had his entertainment system on loud.

The OP mentioned "high frequencies". ¿?

 

Greetings,

I recently used an sound meter and it did confirm my suspicious, at the moment I'm curious about how they are doing this.

A sound meter and detects audible sound. Why did you not hear it?

 

Maybe he has installed these: https://www.amazon.com/Whistle-Whis...hvlocphy=&hvtargid=pla-4583589109388710&psc=1

 

The OP mentioned "high frequencies". ¿?

He did, but in post #5 he then specified infrasound, which is frequencies below the audio limit.
Car loudspeakers might also cause spurious ultrasound to be generated by panel resonance.

 

He did, but in post #5 he then specified infrasound, which is frequencies below the audio limit.
Car loudspeakers might also cause spurious ultrasound to be generated by panel resonance.

I live in a really quiet neighborhood and my hearing capacity is seriously impaired. From time to time (thanks God, not often) an inspired driver with audio booming full blast, could cross in front of my home. I perceive them when they are even one block away. It took me time to get used to that.

Otherwise, it is the next door dog who barks occasionally for me not to feel alone but no conflicts here.

 

Maybe the neighbor just retired from a job in Cuba?

 

Infrasound
Never heard it. Ha!ha!

 

Maybe the neighbor just retired from a job in Cuba?

Training crickets?

https://qz.com/1113692/cuba-sonic-a...ets-and-cicadas-for-injuries-to-us-diplomats/

“We compared the spectrums of the sounds and evidently this common sound is very similar to the sound of a cicada,” Lt. Col. Juan Carlos Molina, a Cuban government expert, said on the television broadcast Alleged Sonic Attacks. The program also claimed sufficiently loud insect noises could “produce hearing loss, irritation and hypertension in situations of prolonged exposure.”

Seems the Cubans were right.
https://phys.org/news/2019-01-cuban-crickets-weapon-heard-ill.html

 

He doesn't hear it, he FEELS it in the marrow of his bones!

 

Looks like your neighbour is using a brown note on you...

https://en.m.wikipedia.org/wiki/Brown_note

Does he wear ear defenders?

 

Looks like your neighbour is using a brown note on you...

https://en.m.wikipedia.org/wiki/Brown_note

Does he wear ear defenders?

Seems more likely it's a Blue Note.

 

Mac Davis, Country Musician back in the 60's. He'd be in a televised interview and without moving his lips would start making cricket sounds. He'd drive the sound engineers nuts and the people on stage with him would be looking around trying to figure out where the noise was coming from.