TY - GEN
T1 - A frequency-selecting multichannel equalization method for speech dereverberation
AU - Zhang, Wancheng
AU - Yan, Yiming
AU - Wang, Tianyi
AU - He, Zunwen
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/9/9
Y1 - 2015/9/9
N2 - A frequency-selecting approach is proposed for robust multichannel dereverberation in the presence of system identification errors (SIEs), based on subband equalization of acoustic channels. Same as the full-band counterpart, performance of the subband multichannel equalizer (SB-MCEQ) degrades in the presence of SIEs. Firstly performance of the SB-MCEQ in different subbands is investigated. Statistical results show that the performance of SB-MCEQ degrades severely only in a few subbands, and they will be called 'bad' subbands. Then a frequency-selecting multichannel equalization (FS-MCEQ) algorithm is proposed, which abandons the subband signals of the 'bad' subbands or leaves them unprocessed at reconstruction of the full-band signal from the subband signals. Simulation results confirm that the FS-MCEQ algorithm outperforms the SB-MCEQ in the presence of SIEs.
AB - A frequency-selecting approach is proposed for robust multichannel dereverberation in the presence of system identification errors (SIEs), based on subband equalization of acoustic channels. Same as the full-band counterpart, performance of the subband multichannel equalizer (SB-MCEQ) degrades in the presence of SIEs. Firstly performance of the SB-MCEQ in different subbands is investigated. Statistical results show that the performance of SB-MCEQ degrades severely only in a few subbands, and they will be called 'bad' subbands. Then a frequency-selecting multichannel equalization (FS-MCEQ) algorithm is proposed, which abandons the subband signals of the 'bad' subbands or leaves them unprocessed at reconstruction of the full-band signal from the subband signals. Simulation results confirm that the FS-MCEQ algorithm outperforms the SB-MCEQ in the presence of SIEs.
KW - dereverberation
KW - multichannel equalization
KW - multirate signal processing
KW - system identification errors
UR - http://www.scopus.com/inward/record.url?scp=84961389438&partnerID=8YFLogxK
U2 - 10.1109/ICDSP.2015.7251850
DO - 10.1109/ICDSP.2015.7251850
M3 - Conference contribution
AN - SCOPUS:84961389438
T3 - International Conference on Digital Signal Processing, DSP
SP - 158
EP - 162
BT - 2015 IEEE International Conference on Digital Signal Processing, DSP 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE International Conference on Digital Signal Processing, DSP 2015
Y2 - 21 July 2015 through 24 July 2015
ER -