Robust Online Overdetermined Independent Vector Analysis Based on Bilinear Decomposition
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arXiv
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| Autori principali: | , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866909994296803328 |
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| author | Chen, Kang Wang, Xianrui Yang, Yichen Brendel, Andreas Huang, Gongping Koldovský, Zbyněk Chen, Jingdong Benesty, Jacob Makino, Shoji |
| author_facet | Chen, Kang Wang, Xianrui Yang, Yichen Brendel, Andreas Huang, Gongping Koldovský, Zbyněk Chen, Jingdong Benesty, Jacob Makino, Shoji |
| contents | Online blind source separation is essential for both speech communication and human-machine interaction. Among existing approaches, overdetermined independent vector analysis (OverIVA) delivers strong performance by exploiting the statistical independence of source signals and the orthogonality between source and noise subspaces. However, when applied to large microphone arrays, the number of parameters grows rapidly, which can degrade online estimation accuracy. To overcome this challenge, we propose decomposing each long separation filter into a bilinear form of two shorter filters, thereby reducing the number of parameters. Because the two filters are closely coupled, we design an alternating iterative projection algorithm to update them in turn. Simulation results show that, with far fewer parameters, the proposed method achieves improved performance and robustness. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_12485 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Robust Online Overdetermined Independent Vector Analysis Based on Bilinear Decomposition Chen, Kang Wang, Xianrui Yang, Yichen Brendel, Andreas Huang, Gongping Koldovský, Zbyněk Chen, Jingdong Benesty, Jacob Makino, Shoji Audio and Speech Processing Sound Online blind source separation is essential for both speech communication and human-machine interaction. Among existing approaches, overdetermined independent vector analysis (OverIVA) delivers strong performance by exploiting the statistical independence of source signals and the orthogonality between source and noise subspaces. However, when applied to large microphone arrays, the number of parameters grows rapidly, which can degrade online estimation accuracy. To overcome this challenge, we propose decomposing each long separation filter into a bilinear form of two shorter filters, thereby reducing the number of parameters. Because the two filters are closely coupled, we design an alternating iterative projection algorithm to update them in turn. Simulation results show that, with far fewer parameters, the proposed method achieves improved performance and robustness. |
| title | Robust Online Overdetermined Independent Vector Analysis Based on Bilinear Decomposition |
| topic | Audio and Speech Processing Sound |
| url | https://arxiv.org/abs/2601.12485 |