NOAA: Monitoring the global ocean through underwater acoustics

The Acoustic Monitoring Project of the VENTS Program has performed continuous monitoring of ocean noise since August, 1991 using the U.S. Navy SOund SUrveillance System (SOSUS) network and autonomous underwater hydrophones.

Bloop

NOAA: This sound was repeatedly recorded during summer, 1997 on the Equatorial Pacific Ocean autonomous hydrophone array. The sound rises rapidly in frequency over about one minute and was of sufficient amplitude to be heard on multiple sensors, at a range of over 5,000 km. It yields a general location near 50^oS; 100^oW. The origin of the sound is unknown.

Taos Hum

In 1977, a British newspaper received nearly 800 letters from people complaining of loss of sleep, dizziness, shortness of breath, headaches, anxiety, irritability, deteriorating health, inability to read or study because of the incessant hum.

Soundproofing the noisy kids upstairs

From American Public Media's Marketplace program

The loudest noises in big city apartments often come from the smallest culprits --- the kids upstairs. That's giving acoustic consultants good business. Ashley Milne-Tyte hears them out.

Activists Preparing Against Use of ‘Brown Note’ at Dem Convention

Also called “Brown Note,” it is believed to be an infrasound frequency that debilitates a person by making them defecate involuntarily.