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Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise rejection is the ability of a circuit to isolate an undesired signal component from the desired signal component, as with common-mode rejection ratio.
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 ...
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 ...
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.
Active noise control (ANC), also known as noise cancellation (NC), or active noise reduction (ANR), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first.
Noise reduction systems (3 C, 9 P) Pages in category "Noise reduction" The following 21 pages are in this category, out of 21 total. This list may not reflect recent ...
These noise cancelling headphones are designed by Beats in conjunction with Kim Kardashian, so if you've got a Kardashian-obsessed person on your list, this combo will thrill them. $279 at Macy's ...
The noise components are filtered out, but not quite completely; the signal components are retained, but not quite completely; and there is a transition zone which is partly accepted. In contrast, the signal subspace approach represents a sharp cut-off: an orthogonal component either lies within the signal subspace, in which case it is 100% ...
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related to: bhi noise reduction