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A sound attenuator, or duct silencer, sound trap, or muffler, is a noise control acoustical treatment of Heating Ventilating and Air-Conditioning (HVAC) ductwork designed to reduce transmission of noise through the ductwork, either from equipment into occupied spaces in a building, or between occupied spaces.
According to a chart at Rtings.com, you'd want a minimum distance of 10 feet from a TV that's 75 inches and 12 feet from an 85-inch. A smaller room doesn't necessarily need a super-huge TV ...
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.
Also, quantization noise can be "hidden" where they would be masked by more prominent sounds. With low compression, a conservative psy-model is used with small block sizes. When the psychoacoustic model is inaccurate, when the transform block size is restrained, or when aggressive compression is used, this may result in compression artifacts.
THD+N means total harmonic distortion plus noise. This measurement is much more common and more comparable between devices. This measurement is much more common and more comparable between devices. It is usually measured by inputting a sine wave , notch-filtering the output, and comparing the ratio between the output signal with and without the ...
Johnson–Nyquist noise (thermal noise, Johnson noise, or Nyquist noise) is the electronic noise generated by the thermal agitation of the charge carriers (usually the electrons) inside an electrical conductor at equilibrium, which happens regardless of any applied voltage.
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