Noise reduction

(redirected from Noise rejection)

noise reduction

[′nȯiz ri‚dək·shən]
(engineering acoustics)
A process whereby the average transmission of the sound track of a motion picture print, averaged across the track, is decreased for signals of low level; since background noise introduced by the sound track is less at low transmission, this process reduces noise during soft passages.

Noise reduction

Reducing the level of unwanted sound by any of several means of acoustical treatment.

noise reduction, NR

The difference in decibels between the average sound pressure levels produced in two rooms by a sound source in one of them.
References in periodicals archive ?
Most models are fluid-damped to provide superior noise rejection in high shock and vibration environments as well as excellent output stability
The PXIe-4081 also uses advanced DMM measurement techniques such as offset compensated Ohms and higher-order DC noise rejection.
SiTime has developed timing solutions based on silicon micro-electromechanical systems (MEMS) technology that exhibit better electromagnetic noise rejection and better performance under shock and vibration.
002 C, and has the ability to measure dynamic signals up to a MHz and selectively achieve over 30 dB of noise rejection of environmental noise sources.
The superior noise rejection supported by differential sensing allows more flexiblity in the sensor pattern utilized.
To illustrate the noise rejection performance of PLL, the transient and stable state of TO(k) is shown in Fig.
The noise rejection function eliminates all the black pixels that have 4-connected and 8-connected white pixel neighbors.
The SEL-2600A is a fully compatible replacement for the SEL-2600 and provides new-generation, patent-pending noise rejection technology.
This allows the headset to form the best possible seal against the side of the head for testing and the noise rejection properties of the earphones will measure better on HATS than is typically achievable in actual use.
LVDS cuts down on noise, known as common-mode noise rejection, and boosts data rates by using extremely low voltage levels, translating to low radiation and less power consumption.