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Buy Quiet programs seek to minimize the impact of noise on communities and help companies comply with OSHA and other noise regulation requirements as well. Additionally, Buy Quiet concepts may reduce the long-term costs of audiometric testing, personal protective equipment, and workers’ compensation.
Dolby SR was originally implemented in Dolby's Cat. 280 card, which was pin-compatible with the Cat. 22 A-type noise reduction card. Thus, devices that took the Cat. 22 card could be upgraded from A to SR by replacing the Cat. 22 with the Cat. 280. The Cat. 280 card functions in many devices including Dolby's Model 361 frame.
The wavelength in air of sinusoidal noise at approximately 800 Hz is double the distance of the average person's left ear to the right ear; [1] such a noise coming directly from the front will be easily reduced by an active system but coming from the side will tend to cancel at one ear while being reinforced at the other, making the noise ...
A Dolby noise-reduction system, or Dolby NR, is one of a series of noise reduction systems developed by Dolby Laboratories for use in analog audio tape recording. [1] The first was Dolby A, a professional broadband noise reduction system for recording studios that was first demonstrated in 1965, but the best-known is Dolby B (introduced in 1968), a sliding band system for the consumer market ...
Polaris had been showing interest in electric propulsion, producing an electric version of its Ranger Side-by-Side and more recently buying Global Electric Motorcars (GEM). As one publication put it, "This latest move likely signals the addition of clean and quiet drivetrains to ATVs and motorcycles under the global giant's brand umbrella ...
The first product Dolby Labs produced was the Dolby 301 unit which incorporated Type A Dolby Noise Reduction, a compander-based noise reduction system. [9] These units were intended for use in professional recording studios. Dolby was persuaded by Henry Kloss of KLH to manufacture a consumer version of his noise reduction. Dolby worked more on ...
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