Under-determined convolutive blind source separation using spatial covariance models

  title={Under-determined convolutive blind source separation using spatial covariance models},
  author={Ngoc Q. K. Duong and Emmanuel Vincent and R{\'e}mi Gribonval},
  journal={2010 IEEE International Conference on Acoustics, Speech and Signal Processing},
This paper deals with the problem of under-determined convolutive blind source separation. We model the contribution of each source to all mixture channels in the time-frequency domain as a zero-mean Gaussian random variable whose covariance encodes the spatial properties of the source. We consider two covariance models and address the estimation of their parameters from the recorded mixture by a suitable initialization scheme followed by an iterative expectation-maximization (EM) procedure in… CONTINUE READING
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