2.2. Is active control new?
Description
This article is from the Active Noise Control FAQ, by Dr. Chris Ruckman
2.2. Is active control new?
The idea of active noise control was actually conceived in the 1930\u2019s (see the Lueg patent mentioned below), and more development was done in the 1950\u2019s. However, it was not until the advent of modern digital computers that active control became truly practical. Active control became a "mainstream" research topic in the 1970\u2019s and 1980\u2019s, and in recent years research papers have been published at the rate of several hundred per year. There are now several rather large companies that specialize in active control products, and the topic is widely studied in universities and government research laboratories.
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