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In early 2015, most or all of Polk's non-technical jobs were moved from the Baltimore office to the headquarters of the parent company, Sound United, in Carlsbad, California. At that time, Polk's engineers joined with those of Definitive Technology, and the Audio and Acoustics Research and Development [ARAD] center was established in Owings Mills.
A rotary woofer is designed to produce only frequencies lower than 20 Hz; distortion increases as the input frequency exceeds the fan's rotation rate (20 Hz would be about 1200 rpm for the fan). Fan RPM is limited to reduce the constant noise generated by the fan blades. Current models typically spin at around 800 RPM (13 Hz).
This list of car audio manufacturers and brands comprises brand labels and manufacturers of both original equipment manufacturer (OEM) and after-market products generally related to in-car entertainment that already have articles within Wikipedia. While components sold by these companies have much in common with other audio applications or may ...
A Baltimore City man died and nine other people were injured after a shooting and fiery crash in the Baltimore suburb of Towson Tuesday night, authorities said.
The Polk County Sheriff's Office says they are investigating a fatal car crash that happened Friday night in Winter Haven on Dundee Road at the Overlook Drive intersection.
From about 1900 to the 1950s, the "lowest frequency in practical use" in recordings, broadcasting and music playback was 100 Hz. [9] When sound was developed for motion pictures, the basic RCA sound system was a single 8-inch (20 cm) speaker mounted in straight horn, an approach which was deemed unsatisfactory by Hollywood decisionmakers, who hired Western Electric engineers to develop a ...
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Burst noise is a type of electronic noise that occurs in semiconductors and ultra-thin gate oxide films. [1] It is also called random telegraph noise ( RTN ), popcorn noise , impulse noise , bi-stable noise , or random telegraph signal ( RTS ) noise.