TY - GEN
T1 - Binaural sound source localization based on upward zero-crossing points detection in reverberant fields
AU - Zeng, Xiangyang
AU - Cai, Huaizhen
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/12/15
Y1 - 2014/12/15
N2 - This paper mainly deals with the problem of sound source localization based on upward zero-crossing points detection with two microphones. Gammatone filter bank are used to divide the signal into different frequencies, SNR can be obtained by the statistical properties of the time difference samples, and then reliable time difference samples can be selected according to the SNR limitation. Finally, the practical time difference is achieved by the analysis of the time difference samples. Consequently, the time differences are transformed into azimuths by use of geometrical relationship. Experiments are conducted with different sounds, and sounds with wider spectrum seem to perform more precisely; Evidence also shows that the method is robust to sound signals with different SNR, and experiments in different rooms reveal that reverberation apparently degrades the localization accuracy.
AB - This paper mainly deals with the problem of sound source localization based on upward zero-crossing points detection with two microphones. Gammatone filter bank are used to divide the signal into different frequencies, SNR can be obtained by the statistical properties of the time difference samples, and then reliable time difference samples can be selected according to the SNR limitation. Finally, the practical time difference is achieved by the analysis of the time difference samples. Consequently, the time differences are transformed into azimuths by use of geometrical relationship. Experiments are conducted with different sounds, and sounds with wider spectrum seem to perform more precisely; Evidence also shows that the method is robust to sound signals with different SNR, and experiments in different rooms reveal that reverberation apparently degrades the localization accuracy.
KW - reverberation
KW - Time difference
KW - zero-crossing points
UR - http://www.scopus.com/inward/record.url?scp=84922652177&partnerID=8YFLogxK
U2 - 10.1109/ICSPCC.2014.6986290
DO - 10.1109/ICSPCC.2014.6986290
M3 - 会议稿件
AN - SCOPUS:84922652177
T3 - 2014 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2014
SP - 720
EP - 723
BT - 2014 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2014
Y2 - 5 August 2014 through 8 August 2014
ER -