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Direction of arrival estimation for multiple speakers using time-frequency orthogonal signal separation

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Author

  • Mikael Swartling
  • Nedelko Grbic
  • Ingvar Claesson

Summary, in English

This paper presents a new approach for multiple speaker DOA estimation using an array of microphones. The method relies on the fact that multiple independent speakers have a small overlap in the time-frequency domain, i.e. the individual signals are almost W-disjoint orthogonal. By introducing a time-frequency mask and by continuously tracking the set of time-frequency points corresponding to each individual speech signal, a single source DOA estimation algorithm is used to find the DOA for each separated signal. This approach does not limit the solution to cases where the number of sensors exceeds the number of sources. Real room recordings are used to evaluate the performance of the method where source movements are also included.

Publishing year

2006-05

Language

English

Pages

833-836

Publication/Series

Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP'06)

Volume

4

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Signal Processing

Conference name

IEEE International Conference on Acoustics, Speech, and Signal Processing, 2006

Conference date

2006-05-14 - 2006-05-19

Conference place

Toulouse, France

Status

Published

ISBN/ISSN/Other

  • ISBN: 1-4244-0469-X