Of active noise control algorithms towards a user-implementable aftermarket anc system

The past 30 years have shown a steady uptick in the application of of Active Noise Control (ANC) technology to the practical problem of noise pollution in various fields including audio, transportation, medicine, appliances, industrial and more. Part of this success stems from the exponential increase in the computational power of modern microprocessors and their corresponding decrease in size, power consumption and price. These advances have allowed for the proliferation of relatively low-cost embedded applications of ANC systems. However, whereas in the past it may have been necessary to use custom embedded silicon for ANC signal processing, it may now be possible to implement using low-cost off-theshelf non-embedded hardware such as a single-board computer or mobile phone. This paper is a survey of various active noise control algorithms with an eye towards eventual application in a user-implementable aftermarket ANC system on off-the shelf hardware.