| 一种快速准确的改进BIC说话人改变检测算法 |
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| 引用本文： | 杨继臣;贺前华;徐益君;李艳雄.一种快速准确的改进BIC说话人改变检测算法[J].华南理工大学学报(自然科学版),2009,37(9). |
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| 作者姓名： | 杨继臣;贺前华;徐益君;李艳雄 |
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| 作者单位： | 华南理工大学 |
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| 摘 要： | 针对BIC说话人改变检测中检测精度低，计算量大的问题，本文提出了一种快速准确的改进BIC说话人改变检测算法：通过提高可测度的方法来提高检测精度；在分析窗长度增加时，通过增加分析窗内第一个数据窗的长度来降低计算量；在寻找潜在改变点时，只在新增加的分析窗内计算和寻找；通过限制分析窗内第一个数据窗最大值的方法来解决长时间没有说话人改变点计算量不断增大的问题。实验结果表明该算法在不影响说话人改变检测的总准确率的基础上提高了检测精度，节省了计算量。
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| 关 键 词： | 说话人改变检测 检测精度 计算量 可测度 数据窗 |
| 收稿时间： | 2009-3-5 |
| 修稿时间： | 2009-4-22 |
A Fast and Accuracy Modified BIC Algorithm of Speaker Change Detection |
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| Jichen Yang Qianhua He Yijun Xu Yanxiong Li.A Fast and Accuracy Modified BIC Algorithm of Speaker Change Detection[J].Journal of South China University of Technology(Natural Science Edition),2009,37(9). |
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| Authors: | Jichen Yang Qianhua He Yijun Xu Yanxiong Li |
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| Abstract: | This paper proposes a fast and accuracy modified BIC algorithm of speaker change detection in order to solve low detection precision and huge calculation in BIC speaker change detection. Detection precision is improved by enlarging detectability; Calculation is decreased by enlarging the first data window length in the analysis window when it become larger; Calculation and seeking potential speaker change point is carried in the added analysis window； The first data window maximum length is limited to solve the calculation becoming lager gradually when there is no speaker change point in a long time. The experiment results show this algorithm can improve detection precision and save calculation at the base of unaffecting the total accuracy of speaker change detection. |
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| Keywords: | speaker change detection detection precision calculation detectability data window |
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