| 基于客观测试方法针对普通话的AMR话音激活检测算法性能分析 |
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| 引用本文： | 陈东,张艳,匡镜明. 基于客观测试方法针对普通话的AMR话音激活检测算法性能分析[J]. 北京理工大学学报(英文版), 2002, 11(2): 174-179 |
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| 作者姓名： | 陈东 张艳 匡镜明 |
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| 作者单位： | [1]北京理工大学电子工程系，北京100081 [2]北京理工大学计算机科学与工程系，北京100081 |
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| 基金项目： | SponsoredbyEricssonCorporation;Sweden |
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| 摘 要： | 为了评价3GPP标准化的AMR VAD应用于汉语普通话的性能，采用正式的客观测试方法作为性能的度量准则，该准则主要基于剪音概率，话音激活因子，噪声误检为语音的概率和语音输入电平4个参数，在不同背景环境，不同信噪比和不同语音输入电平下，完成了AMRVAD和两种参考VAD（EFR和G．729B）的仿真的。结果表明，AMR VAD总体性能优于G．729VAD，而较EFR VAD略差。
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| 关 键 词： | 普通话 AMR 算法 话音激活检测 自适应多速率 客观测试方法 |
Performance Analysis of AMR Voice Activity Detection Algorithm for Mandarin Based on Objective Test Method |
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| CHEN Dong,ZHANG Yan and KUANG Jing ming. Performance Analysis of AMR Voice Activity Detection Algorithm for Mandarin Based on Objective Test Method[J]. Journal of Beijing Institute of Technology, 2002, 11(2): 174-179 |
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| Authors: | CHEN Dong ZHANG Yan KUANG Jing ming |
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| Affiliation: | Department of Electronics Engineering, Beijing Institute of Technology, Beijing 100081, China;Department of Computer Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;Department of Electronics Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | To evaluate the performance of adaptive multi rate (AMR) voice activity detection (VAD) algorithm standardized by 3GPP applied to Mandarin, the formal objective test method is adopted as the performance metric, this kind of method is based on statistics of clipping probability, voice activity factor, noise detected as speech probability and speech input level. With different background noises and different signal to noise ratios, the AMR VAD algorithm is simulated and compared with both reference VADs including enhanced full rate (EFR) and ITU G.729B. The results show that the AMR VAD performs better than G.729B VAD and worse than EFR VAD in most of cases. |
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