| ชื่อเรื่อง | : | A GMM post-filter for residual crosstalk suppression in blind source separation |
| นักวิจัย | : | Liu, Benxu , Reju, Vaninirappuputhenpurayil Gopalan , Khong, Andy W. H , Reddy, Vinod Veera |
| คำค้น | : | DRNTU::Engineering::Electrical and electronic engineering |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2557 |
| อ้างอิง | : | Liu, B., Reju, V. G., Khong, A. W. H., & Reddy, V. V. (2014). A GMM Post-Filter for Residual Crosstalk Suppression in Blind Source Separation. IEEE Signal Processing Letters, 21(8), 942-946. , 1070-9908 , http://hdl.handle.net/10220/19340 , http://dx.doi.org/10.1109/LSP.2014.2317761 , 178644 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | IEEE signal processing letters |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | 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 distribution of speech signals using the Gaussian mixture model (GMM) and then derive a post-filter in the ML sense using the expectation-maximization algorithm. We show that the GMM introduces a probabilistic sample weight that is able to emphasize speech segments that are free of crosstalk components in the BSS output and this results in a better estimate of the post-filter. Simulation results show that the proposed post-filter achieves better crosstalk suppression than the Wiener filter for BSS. |
| บรรณานุกรม | : |
Liu, Benxu , Reju, Vaninirappuputhenpurayil Gopalan , Khong, Andy W. H , Reddy, Vinod Veera . (2557). A GMM post-filter for residual crosstalk suppression in blind source separation.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Liu, Benxu , Reju, Vaninirappuputhenpurayil Gopalan , Khong, Andy W. H , Reddy, Vinod Veera . 2557. "A GMM post-filter for residual crosstalk suppression in blind source separation".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Liu, Benxu , Reju, Vaninirappuputhenpurayil Gopalan , Khong, Andy W. H , Reddy, Vinod Veera . "A GMM post-filter for residual crosstalk suppression in blind source separation."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print. Liu, Benxu , Reju, Vaninirappuputhenpurayil Gopalan , Khong, Andy W. H , Reddy, Vinod Veera . A GMM post-filter for residual crosstalk suppression in blind source separation. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.
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