Mysterious noise keeps couple awake in their home - no source found!

[IndySam]

In my old condo once or twice a month I would hear a strange motor and vacuum noise that I couldn't figure out. After many months I finally discovered that is was a street cleaner that would clean the parking lot of the strip mall down the street.

And you should ask team 45 about the Kokomo Hum.

[acdcfan259]

Originally Posted by IndySam

And you should ask team 45 about the Kokomo Hum.

What, do the Beach Boys play for days on end?

Nobody.... I hate you guys.

[Travis Hoffman]

I think it's the C.H.U.D.'s trying to get out of the sewer....

[MikeDubreuil]

I can't believe they used tax dollars to investigate a problem at someone's private residence. The homeowner should pay for that- not the people of Green Bay.

[John Wanninger]

This situation might be a good application for using a sound intensity probe. Sound Intensity is "a time-averaged, directional quantity that measures the rate of energy flowing through a specified unit area." (See http://www.soundintensity.com/si_technical.htm) By measuring sound as a vector quantity and determining the direction of the sound energy (as opposed to just the sound pressure level), perhaps the source of the sound can more easily be located.

[Andy Baker]

Originally Posted by IndySam

And you should ask team 45 about the Kokomo Hum.

I worked with a guy at Delphi a few years back that was investigating the "Kokomo Hum".

There have been articles in the NY Times and ABC News.

He had two theories:
1. The Soviet communists were purposely trying to annoy us.
2. Alien lifeforms were invading us.

Well... he had other theories. There are 2 very large auto parts plants in the city. These other theories included industrial fans and power sources for these plants. However... he did actually talk about aliens and commies.

Food for thought. Maybe my former co-worker moved to Green Bay.

AB