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 ?
5G and 5G speeds, resulting in improved alien noise rejection and a cable reach of more than 100m over existing Cat5e and Cat6 cables.
We designed the TMA568 controller to be the premier solution for superphone and tablet touchscreens, with unmatched noise rejection, waterproofing and other unique features, said Joe Montalbo, vice president of the TrueTouch Business Unit at Cypress.
TDMA noise rejection ensures clearer, uninterrupted streaming whilst the built-in battery provides 10 hours' play on a single charge.
LDOs Provide High Output Current of 300 mA, High Input Voltage of 16V and High Noise Rejection of 70 dB With Industry's Best Combination of Performance, Size and Price
The SEL-2600A is a fully compatible replacement for the SEL-2600 and provides new-generation, patent-pending noise rejection technology.
The noise rejection function eliminates all the black pixels that have 4-connected and 8-connected white pixel neighbors.
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.
This process enables PRML technology to resolve higher bit densities than peak detection, while also improving noise rejection, in effect producing higher efficiency data encoding.
A sample rate is 125ms for all inputs and high noise rejection results in outstanding measurement integrity in the harshest of environments.
digit recognition and noise rejection, and will be integrated into Vocollect's Talkman series of products.
These findings are consistent with intraoperative human studies, which found that despite the strictest approaches to noise rejection, DPOAEs below 2,500 Hz could not be reliably monitored because of the high levels of background noise.
The direct sequence technique resolves the issue of how to maximize noise rejection while maintaining low cost.