TY - GEN
T1 - Active noise control over 3d space with multiple circular arrays
AU - Sun, Huiyuan
AU - Abhayapala, Thushara D.
AU - Samarasinghe, Prasanga N.
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/10
Y1 - 2019/10
N2 - Spatial active noise control (ANC) systems focus on minimizing unwanted acoustic noise over a continuous spatial region. Conventionally spatial ANC is attempted using MIMO system and recently novel methods have been developed using spherical harmonic analysis of spatial sound fields. A major limitation for implementing the latter approach is the requirement of regularly distributed microphones and loudspeakers over spherical arrays. In this paper, we relax the above constraint by constructing a system utilizing multiple circular microphone and loudspeaker arrays, and by designing a feed-forward adaptive filtering algorithm for noise reduction over a 3D region. By simulation, we demonstrate that the proposed method can achieve comparable ANC performance to conventional spherical array methods, while being more feasible to be implemented in practice.
AB - Spatial active noise control (ANC) systems focus on minimizing unwanted acoustic noise over a continuous spatial region. Conventionally spatial ANC is attempted using MIMO system and recently novel methods have been developed using spherical harmonic analysis of spatial sound fields. A major limitation for implementing the latter approach is the requirement of regularly distributed microphones and loudspeakers over spherical arrays. In this paper, we relax the above constraint by constructing a system utilizing multiple circular microphone and loudspeaker arrays, and by designing a feed-forward adaptive filtering algorithm for noise reduction over a 3D region. By simulation, we demonstrate that the proposed method can achieve comparable ANC performance to conventional spherical array methods, while being more feasible to be implemented in practice.
KW - Active noise control
KW - adaptive filter
KW - azimuth harmonics
KW - circular array
KW - spherical harmonics
UR - http://www.scopus.com/inward/record.url?scp=85078059414&partnerID=8YFLogxK
U2 - 10.1109/WASPAA.2019.8937181
DO - 10.1109/WASPAA.2019.8937181
M3 - Conference contribution
T3 - IEEE Workshop on Applications of Signal Processing to Audio and Acoustics
SP - 135
EP - 139
BT - 2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2019
Y2 - 20 October 2019 through 23 October 2019
ER -