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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2510.02382 |
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| _version_ | 1866918153254076416 |
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| author | Xie, Xuemai Wang, Xianrui Zhang, Liyuan Yang, Yichen Makino, Shoji |
| author_facet | Xie, Xuemai Wang, Xianrui Zhang, Liyuan Yang, Yichen Makino, Shoji |
| contents | Among numerous blind source separation (BSS) methods, convolutive transfer function-based multichannel non-negative matrix factorization (CTF-MNMF) has demonstrated strong performance in highly reverberant environments by modeling multi-frame correlations of delayed source signals. However, its practical deployment is hindered by the high computational cost associated with the iterative projection (IP) update rule, which requires matrix inversion for each source. To address this issue, we propose an efficient variant of CTF-MNMF that integrates iterative source steering (ISS), a matrix inversion-free update rule for separation filters. Experimental results show that the proposed method achieves comparable or superior separation performance to the original CTF-MNMF, while significantly reducing the computational complexity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_02382 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Accelerated Convolutive Transfer Function-Based Multichannel NMF Using Iterative Source Steering Xie, Xuemai Wang, Xianrui Zhang, Liyuan Yang, Yichen Makino, Shoji Sound Audio and Speech Processing Among numerous blind source separation (BSS) methods, convolutive transfer function-based multichannel non-negative matrix factorization (CTF-MNMF) has demonstrated strong performance in highly reverberant environments by modeling multi-frame correlations of delayed source signals. However, its practical deployment is hindered by the high computational cost associated with the iterative projection (IP) update rule, which requires matrix inversion for each source. To address this issue, we propose an efficient variant of CTF-MNMF that integrates iterative source steering (ISS), a matrix inversion-free update rule for separation filters. Experimental results show that the proposed method achieves comparable or superior separation performance to the original CTF-MNMF, while significantly reducing the computational complexity. |
| title | Accelerated Convolutive Transfer Function-Based Multichannel NMF Using Iterative Source Steering |
| topic | Sound Audio and Speech Processing |
| url | https://arxiv.org/abs/2510.02382 |