TY - GEN
T1 - Blind estimation of directional properties of room reverberation using a spherical microphone array
AU - Samarasinghe, Prasanga N.
AU - Abhayapala, Thushara D.
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/6/16
Y1 - 2017/6/16
N2 - This paper presents an experimental study on a novel technique to blindly estimate the directional properties of room reflections using a spherical microphone array. The algorithm is developed based on a spatial correlation model formulated in the spherical harmonics domain. This model expresses the cross correlation matrix of the recorded soundfield coefficients in terms of direct sound and reflections. The directional gain of the reflected path is estimated from the above model, which provides information on the DOAs of dominant wall reflections. The practical feasibility of the proposed algorithm is evaluated using a subset of the speech corpus from the ACE (Acoustic Characterization of Environments) Challenge.
AB - This paper presents an experimental study on a novel technique to blindly estimate the directional properties of room reflections using a spherical microphone array. The algorithm is developed based on a spatial correlation model formulated in the spherical harmonics domain. This model expresses the cross correlation matrix of the recorded soundfield coefficients in terms of direct sound and reflections. The directional gain of the reflected path is estimated from the above model, which provides information on the DOAs of dominant wall reflections. The practical feasibility of the proposed algorithm is evaluated using a subset of the speech corpus from the ACE (Acoustic Characterization of Environments) Challenge.
UR - http://www.scopus.com/inward/record.url?scp=85023761678&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2017.7952176
DO - 10.1109/ICASSP.2017.7952176
M3 - Conference contribution
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 351
EP - 355
BT - 2017 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2017 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2017
Y2 - 5 March 2017 through 9 March 2017
ER -