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The first patent for a noise control system— U.S. patent 2,043,416 —was granted to inventor Paul Lueg in 1936. The patent described how to cancel sinusoidal tones in ducts by phase-advancing the wave and canceling arbitrary sounds in the region around a loudspeaker by inverting the polarity. [3]
Dr. Lawrence Jerome Fogel (March 2, 1928 – February 18, 2007) was a pioneer in evolutionary computation and human factors analysis. He is known as the inventor of active noise cancellation and the father of evolutionary programming.
Industrial noise control is a subset of interior architectural control of noise, with emphasis on specific methods of sound isolation from industrial machinery and for protection of workers at their task stations. Sound masking is the active addition of noise to reduce the annoyance of certain sounds, the opposite of soundproofing.
The Department of Health and Human Services message comes amid days of confusion after emails from the U.S. Office of Personnel Management and a tweet by Elon Musk.
Control at the source is the most cost-effective way of providing noise control. Noise control engineering applied to cars and trucks is known as noise, vibration, and harshness (NVH). Other techniques to reduce product noise include vibration isolation , application of acoustic absorbent and acoustic enclosures.
Staffing cuts at the World Trade Center Health Program were restored Friday, Feb. 21, after a bipartisan rally in support of the program that provides healthcare and monitoring for 9/11 responders ...
The Troubled-Teen Industry Has Been A Disaster For Decades. It's Still Not Fixed.
After nearly three weeks in the minority, Democrats have finally settled on a target to rally against: Elon Musk.