TY - GEN
T1 - Sound field separation in a mixed acoustic environment using a sparse array of higher order spherical microphones
AU - Fahim, Abdullah
AU - Samarasinghe, Prasanga N.
AU - Abhayapala, Thushara D.
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/4/10
Y1 - 2017/4/10
N2 - In many acoustic environments, we frequently observe that sound fields caused by desired and undesired sources superimpose each other and form a mixed sound field in the region. Hence, in acoustic signal processing applications, such as sound field recording, speech dereverberation and noise suppression, it is of a great interest to separate the desired sound field from the undesired ones. In this paper, we propose a solution to isolate the desired sound field in a mixed sound field environment for 3D sound propagation. The solution utilizes a sparse array of higher order microphones to achieve the goal, which greatly reduces the design complexity by using less number of microphones in an implementation-favorable geometry. We evaluate the performance under different noisy and noiseless environments to test the effectiveness as well as the robustness of the algorithm.
AB - In many acoustic environments, we frequently observe that sound fields caused by desired and undesired sources superimpose each other and form a mixed sound field in the region. Hence, in acoustic signal processing applications, such as sound field recording, speech dereverberation and noise suppression, it is of a great interest to separate the desired sound field from the undesired ones. In this paper, we propose a solution to isolate the desired sound field in a mixed sound field environment for 3D sound propagation. The solution utilizes a sparse array of higher order microphones to achieve the goal, which greatly reduces the design complexity by using less number of microphones in an implementation-favorable geometry. We evaluate the performance under different noisy and noiseless environments to test the effectiveness as well as the robustness of the algorithm.
KW - Higher order microphones
KW - Sound field recording
KW - Spherical harmonic
KW - Spherical microphone array
UR - http://www.scopus.com/inward/record.url?scp=85018727900&partnerID=8YFLogxK
U2 - 10.1109/HSCMA.2017.7895580
DO - 10.1109/HSCMA.2017.7895580
M3 - Conference contribution
T3 - 2017 Hands-Free Speech Communications and Microphone Arrays, HSCMA 2017 - Proceedings
SP - 151
EP - 155
BT - 2017 Hands-Free Speech Communications and Microphone Arrays, HSCMA 2017 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 Hands-Free Speech Communications and Microphone Arrays, HSCMA 2017
Y2 - 1 March 2017 through 3 March 2017
ER -