noise enclosure
1Active noise control — (ANC) (also known as noise cancellation, active noise reduction (ANR) or antinoise) is a method for reducing unwanted sound. Contents 1 Explanation 2 Applications 3 See also 4 …
2Merzbox — Box set by Merzbow Released June 16, 2000 (2000 06 16) Recorded 1979–1997 …
3List of Prehistoric Park episodes — This is a list of episodes from Prehistoric Park .Episode 1: T. rex Returns Montana, 65 million years ago, late Cretaceous. Genera encountered: * Ornithomimus (13 brought back) * Tyrannosaurus (identified as Tyrannosaurus rex , 2 brought back) *… …
4Subwoofer — A subwoofer is a woofer, or a complete loudspeaker dedicated to the reproduction of bass audio frequencies, from perhaps 150 Hz down as far as 20 Hz, or in rare cases lower. Also known as subs , these are used to augment the low frequency… …
5Crystal oscillator — A miniature 4 MHz quartz crystal enclosed in a hermetically sealed HC 49/US package, used as the resonator in a crystal oscillator. A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal …
6musical sound — Introduction any tone with characteristics such as controlled pitch and timbre. The sounds are produced by instruments in which the periodic vibrations can be controlled by the performer. That some sounds are intrinsically musical,… …
7Hard disk drive — Hard drive redirects here. For other uses, see Hard drive (disambiguation). Hard disk drive Mechanical interior of a modern hard disk drive Date invented 24 December 1954 [1] …
8Thiele/Small — commonly refers to a set of electromechanical parameters that define the specified low frequency performance of a loudspeaker driver. These parameters are published in specification sheets by driver manufacturers so that designers have a guide in …
9Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
10оценка — 3.9 оценка (evaluation): Систематическое определение степени соответствия объекта установленным критериям. Источник: ГОСТ Р ИСО/МЭК 12207 99: Информационная технология. Процессы жизненного цикла программных средств …
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