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The Polaris 4K gets the important stuff right: image quality, sound quality, noise level and so on. And at this price, it's at least $1,000 less than most USTs. What do you think?
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Polaris began developing a smaller consumer-sized, front-engine snowmobile to compete with the Ski-Doo in the early 1960s. In 1964, Polaris released the Comet. However, the Comet soon ran into problems as it could not travel in all types of snow conditions. Polaris then recalled the sleds and quickly developed a new prototype to avoid ...
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Workers in general industry who are exposed to noise levels above 85 dBA are required by the Occupational Safety and Health Administration (OSHA) to be in a hearing conservation program (HCP), which includes noise measurement, noise control, periodic audiometric testing, hearing protection, worker education, and record keeping. Twenty-four ...
The regularization parameter plays a critical role in the denoising process. When =, there is no smoothing and the result is the same as minimizing the sum of squares.As , however, the total variation term plays an increasingly strong role, which forces the result to have smaller total variation, at the expense of being less like the input (noisy) signal.
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However, the finally released High Com system, which was marketed by Telefunken since 1978, worked as a broadband 2:1:2 compander, achieving almost 15 dB of noise reduction for low [10] and up to 20 dB RMS A-weighted for higher frequencies, [19] [3] [10] [15] reducing the noise power down to 1% [15] while avoiding most of the acoustic problems ...