A GMM post-filter for residual crosstalk suppression in blind source separation

• Main Authors: Khong, Andy Wai Hoong, Liu, Benxu, Reju, Vaninirappuputhenpurayil Gopalan, Reddy, Vinod Veera
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/79667; http://hdl.handle.net/10220/19340
• Institution: Nanyang Technological University

Existing algorithms employ the Wiener filter to suppress residual crosstalk in the outputs of blind source separation algorithms. We show that, in the context of BSS, the Wiener filter is optimal in the maximum likelihood (ML) sense only for normally-distributed signals. We then propose to model the...