Active noise control
id:
active-noise-control-172-12707613
title:
Active noise control
text:
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. The concept was first developed in the late 1930s; later developmental work that began in the 1950s eventually resulted in commercial airline headsets with the technology becoming available in the late 1980s. The technology is also used in road vehicles, mobile telephones, earbuds,
brand slug:
wiki
category slug:
encyclopedia
description:
Method for reducing unwanted sound
original url:
https://en.wikipedia.org/wiki/Active_noise_control
date created:
2003-11-10T02:04:48Z
date modified:
2024-09-02T01:39:27Z
main entity:
{"identifier":"Q583234","url":"https://www.wikidata.org/entity/Q583234"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/7/7d/Active_Noise_Reduction.svg","width":284,"height":227}
fields total:
13
integrity:
16