Adaptive signal processing for interference cancellation in hearing aids
Signal Processing
Multichannel blind deconvolution for source separation in convolutive mixtures of speech
IEEE Transactions on Audio, Speech, and Language Processing
Blind source separation based on a fast-convergence algorithm combining ICA and beamforming
IEEE Transactions on Audio, Speech, and Language Processing
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In this paper, we present a broadband two-microphone blind spatial separation technique by efficiently combining adaptive beam-forming (ABF) with multichannel blind deconvolution (MBD). First, the inaccessible source signal streams are partially identified by simple time-delay steering and then are spatially separated through an MBD structure. The proposed spatio-temporal ABF-MBD algorithm exhibits fast convergence properties and high computational efficiency. Numerical experiments illustrate the practical appeal of the proposed method in separating convolutive mixtures of speech within nearly anechoic and also highly reverberant enclosures.