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Active noise cancelling (ANC) is a software process that uses existing in-vehicle infotainment hardware to eliminate undesirable noise within the interior of a vehicle. This elimination technique is known as harmonic order reduction, where unwanted audio signals are identified by sensors and filtered out of the overall interior vehicle sound. [3]
In February 2016, a high-pitched noise was heard intermittently at night in Forest Grove, Oregon. The Department of Forestry determined that their equipment was not the cause of the sound. [1] 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]
Electric traction motors often produce electromagnetically induced noise. This high-pitch noise depends on the speed and torque level of the machine, as well as the motor type. [5] Variable-frequency drives use pulse-width modulation, which introduces additional current harmonics and results in higher acoustic noise. The switching frequency of ...
The hissing of high voltage transmission lines is due to corona discharge, not magnetism. The phenomenon is also called audible magnetic noise, [1] electromagnetic acoustic noise, lamination vibration [2] or electromagnetically induced acoustic noise, [3] or more rarely, electrical noise, [4] or "coil noise
SEG officers use low-volume, high-pitched whistles in clear deference to sirens (which are not fitted). This drastically decreases the level of noise that precedes an escort and softens the environmental impact on the escorted person and general public.
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 January 2025. This is a list of onomatopoeias, i.e. words that imitate, resemble, or suggest the source of the sound that they describe. For more information, see the linked articles. Human vocal sounds Achoo, Atishoo, the sound of a sneeze Ahem, a sound made to clear the throat or to draw attention ...
Video of the 1996 Ceremony, incl. several Nobel Prize winners. The ceremony took place on 3 October 1996. [32] Art: Presented to Don Featherstone of Fitchburg, Massachusetts, for his ornamentally evolutionary invention, the plastic pink flamingo. Featherstone was the first Ig Nobel Prize winner to appear in person at the awards ceremony to ...
The song features a distinctive horn fanfare intro, sampled from Bob & Earl's 1963 track "Harlem Shuffle".The song also samples "Popeye the Hitchhiker" by Chubby Checker, but it is best known for a high-pitched squealing sound that appears at the beginning of almost every bar—66 times in the course of the recording.