Design of IIR Filters for Active Noise Control by Constrained Optimization

2021 ◽  
Author(s):  
Florian Hilgemann ◽  
Johannes Fabry ◽  
Peter Jax
Keyword(s):  
Constrained Optimization ◽  
Noise Control ◽  
Active Noise Control ◽  
Iir Filters ◽  
Active Noise

scholarly journals Adaptive IIR Filters for Active Noise Control

2001 ◽  
Vol 6 (1) ◽  
Author(s):  
C. Mosquera ◽  
J. A. Gomez ◽  
F. Perez ◽  
M. Sobreira ◽  
E. Alexandre
Keyword(s):  
Noise Control ◽  
Active Noise Control ◽  
Iir Filters ◽  
Active Noise

E34 Active Noise Control with Low Memory Using IIR Filters

2011 ◽  
Vol 2011.64 (0) ◽  
pp. 179-180
Author(s):  
Ikuma IKEDA ◽  
Shinya KIJIMOTO ◽  
Yosuke KOBA
Keyword(s):  
Noise Control ◽  
Active Noise Control ◽  
Iir Filters ◽  
Active Noise

scholarly journals A constrained optimal hear-through filter design approach for earphones

2021 ◽  
Vol 263 (5) ◽  
pp. 1329-1337
Author(s):  
Yongjie Zhuang ◽  
Yangfan Liu
Keyword(s):  
Constrained Optimization ◽  
Optimization Problem ◽  
Noise Control ◽  
Filter Design ◽  
Active Noise Control ◽  
Design Approach ◽  
Electronic Components ◽  
Constrained Optimization Problem ◽  
Active Noise ◽  
Practical Constraints

The sound from environment will be altered after it transmits through headphones to the ear canal. A hear-though filter can be designed and implemented in the headphones to create a more natural hearing experience, i.e., offer a transparent mode for headphones. The design of hear-through filter is also required in some other applications, e.g., augmented reality audio. In this paper, a constrained hear-through filter design approach is proposed. It is firstly shown that the hear-through filter design problem can be formulated in a similar form to active noise control filter design in the frequency domain. One advantage of this design approach is that multiple practical constraints can be applied conveniently by formulating a constrained optimization problem. Then the constrained optimization problem for hear-through filter design is reformulated as cone programming problem which can be solved efficiently. The proposed design approach can also specify the desired delay of reproduced sound. The designed filter can be directly implemented in an active noise control system in the headphone such that the requirement for extra electronic components can be minimal.

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