NYC audio psy-op in progress?

Captante

Lifer
Oct 20, 2003
30,353
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I bet that sound is there 24/7 and the only time it stands out from the background noise is late at night.

Sounds to me like a high-RPM AC compressor or generator causing vibration.


my bet is whistle tips

Fantastic way to have your car set on fire by your neighbors. :rolleyes:
 
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Reactions: Pohemi
Nov 17, 2019
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Years back on another forum, there was a guy complaining about a low level hum he could hear almost constantly. This was in a major metropolitan area with a lot of very heavy industry, railroads, marine traffic, road/truck traffic, underground mining activity and of course all the support industries like power plants. We all tried to offer suggestions based on known sound sources, but the guy rejected them all. He was sure it was something nefarious.

He died some years later.


Hmmmm....
 

Red Squirrel

No Lifer
May 24, 2003
70,453
13,746
126
www.anyf.ca
They keep talking over the sound so it's hard to tell for sure but seems to be dominant around the 430hz range. Not really sure what would produce that frequency but I'm thinking it's some kind of large 3 phase motor and it's putting off a harmonic of sorts. I've heard similar sounds from industrial buildings like mines.
 
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Reactions: Captante

Zeze

Lifer
Mar 4, 2011
11,395
1,189
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Definitely some kind of an equipment or commercial building fan messed up.

Definitely wind related.
 

pmv

Lifer
May 30, 2008
15,142
10,033
136
Years back on another forum, there was a guy complaining about a low level hum he could hear almost constantly. This was in a major metropolitan area with a lot of very heavy industry, railroads, marine traffic, road/truck traffic, underground mining activity and of course all the support industries like power plants. We all tried to offer suggestions based on known sound sources, but the guy rejected them all. He was sure it was something nefarious.

He died some years later.


Hmmmm....


There's a repeated phenomenon of "The X Hum", where X is some town or neighbourhood. The story came up very recently about somewhere here, and it reminded me I've read that same story every decade or so.

The Largs Hum

The Roslin Hum

(seems those two places are actually not that near each other, being opposite sides of Scotland)

The Bristol Hum

...and The global Hum