| 吴礼福,孙帅恒,王雷,孙芯年.应对说话人位置突变的鲁棒语声去混响*[J].,2022,41(6):851-859 |
| 应对说话人位置突变的鲁棒语声去混响* |
| Robust speech dereverberation considering sudden change of speaker position |
| 投稿时间：2021-10-08 修订日期：2022-11-04 |
| 中文摘要: |
| 多通道线性预测算法是一种有效的语声去混响方法，但若房间内说话人位置发生变化，房间冲激响应也会随之改变，从而导致去混响效果变差。本文研究了基于递归最小二乘算法的自适应多通道线性预测语声去混响方法，提出了一种去混响过程中检测说话人位置突变的方法，它借助已有的多通道传声器信号，并未明显增加系统开销。实验表明该方法可以有效检测说话人位置的突变，并通过重置滤波器改善算法的收敛速度和稳定性。 |
| 英文摘要: |
| Multi-channel linear prediction (MCLP) algorithm is an effective speech de reverberation method, but if the speaker position in the room changes, the room impulse response (RIR) will also change, resulting in poor de reverberation effect. In this paper, an adaptive MCLP speech dereverberation method based on recursive least square (RLS) algorithm is studied, and a method for detecting speaker position mutation in the process of dereverberation is proposed. With the help of the existing multi-channel microphone signal, it does not significantly increase the system overhead. Experiments show that this method can effectively detect the mutation of speaker position, and improve the convergence speed and stability of the algorithm by resetting the filter. |
| DOI：10.11684/j.issn.1000-310X.2022.06.001 |
| 中文关键词: 去混响 多通道线性预测 递归最小二乘 |
| 英文关键词: Dereverberation Multi-channel linear prediction Recursive least square |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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