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Upsweep is an unidentified sound detected on the American NOAA's equatorial autonomous hydrophone arrays. This sound was present when the Pacific Marine Environmental Laboratory began recording its sound surveillance system, SOSUS, in August 1991. It consists of a long train of narrow-band upsweeping sounds of several seconds in duration each.
An unexplained high-pitched tone has kept residents of a Portland suburb awake at night for at least a week.
The news about the noise was first shared with Dave Nemeyer by a Forest Grove resident, who posted a video of it on the city's Facebook page. [2] The Washington Post described the noise as sounding like a "giant flute played off pitch", car brakes, or a steam whistle . [ 3 ]
A 1973 report cites a university study of fifty cases of people complaining about a "low throbbing background noise" that others were unable to hear. The sound, always peaking between 30 and 40 Hz (hertz), was found to only be heard during cool weather with a light breeze, and often early in the morning. These noises were often confined to a 10 ...
Nasa says that “strange” noises heard coming from the troubled Boeing Starliner spacecraft are not an indicator that its crew are in any danger.. The unusual noises have now stopped and were ...
Monitoring your recent login activity can help you find out if your account has been accessed by unauthorized users. Review your recent activity and revoke access to suspicious entries using the info below.
Import and export your personal data to a file for safekeeping. Personal data includes Mail, Favorites, Address Book, and settings. 1. Sign in to Desktop Gold. 2. Click the Settings icon. 3. While in the General settings, click the My Data tab. 4. Click Import or Export. 5. Select your file. 6. If exporting, create a password.
4. Click the Sounds tab. 5. Click Customize My Sounds. 6. Search for a sound or select a category from the "All" menu at the top-right. 7. Optionally, click the Preview button to play a sound. 8. Click Apply to choose a sound.