Active noise cancellation for a vehicle induction system having selectable engine noise profile

2007 ◽  
Vol 121 (4) ◽  
pp. 1839
Author(s):  
Paul D. Daly
Keyword(s):  
Noise Cancellation ◽  
Engine Noise ◽  
Active Noise Cancellation ◽  
Active Noise ◽  
Induction System

Prediction filter design for active noise cancellation headphones

2013 ◽  
Vol 7 (6) ◽  
pp. 497-504 ◽  
Author(s):  
Markus Guldenschuh ◽  
Robert Höldrich
Keyword(s):  
Filter Design ◽  
Noise Cancellation ◽  
Active Noise Cancellation ◽  
Active Noise ◽  
Prediction Filter

Study of the Effects of Active Noise Cancellation on Music Playback

2021 ◽  
Author(s):  
Sattwik Basu ◽  
Jeffrey Tackett ◽  
David Trumpy ◽  
Adam Walt ◽  
Santosh Adari
Keyword(s):  
Noise Cancellation ◽  
Active Noise Cancellation ◽  
Active Noise

Active noise cancellation technique for highly accurate EB lithography systems

1997 ◽  
Author(s):  
Koji Nagata ◽  
Masahide Okumura ◽  
Norio Saitou ◽  
Hiroyoshi Ando ◽  
Toshiyuki Morimura ◽  
...  
Keyword(s):  
Noise Cancellation ◽  
Active Noise Cancellation ◽  
Active Noise

Design of an efficient active noise cancellation circuit for in-ear headphones

2014 ◽  
Author(s):  
Kuan-Hung Chen ◽  
Hong-Son Vu ◽  
Kuo-Yuan Weng ◽  
Jin-Huang Huang ◽  
Yu-Ting Tsai ◽  
...  
Keyword(s):  
Noise Cancellation ◽  
Active Noise Cancellation ◽  
Active Noise

Regularized spherical harmonics-domain spatial active noise cancellation in a reverberant room

2021 ◽  
Vol 263 (2) ◽  
pp. 4733-4742
Author(s):  
Shoken Kaneko ◽  
Nirupam Roy ◽  
Nail Gumerov ◽  
Ramani Duraiswami
Keyword(s):  
Cost Function ◽  
Spherical Harmonics ◽  
Open Space ◽  
Microphone Array ◽  
Noise Cancellation ◽  
Target Area ◽  
Acoustic Environment ◽  
Active Noise Cancellation ◽  
Active Noise ◽  
Global Cost

Active Noise Cancellation (ANC) at a target area in an open space, as opposed to cancellation in the ears through headphones, can lead to future applications. For instance, a personal acoustic environment in an airplane seat or inside a car, or a quiet zone in a noisy shared workspace can be possible using such open-space ANC without any uncomfortable on-body audio equipment. Recent advancements reinforce the practicality of such systems. However, regularization of the cancellation signal has been a crucial challenge in open-space ANC as it causes amplification of noise at locations away from the target area. This work presents a spherical harmonics-domain feed-forward spatial ANC method with a room-wide global cost function to address this issue. This room-wide global cost function is used for optimizing the set of regularization hyperparameters, while at run time only local information captured by a microphone array surrounding the target listening zone is required. Numerical experiments applying the proposed method in a simulated reverberant room show the effectiveness of the proposed method in creating a specific zone of silence with low to moderate noise amplification in the rest of the room.

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