| 改进G.728语音编码算法的增益滤波 |
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| 引用本文： | 皇甫丽英,张刚,张雪英.改进G.728语音编码算法的增益滤波[J].太原理工大学学报,2002,33(3):232-233,237. |
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| 作者姓名： | 皇甫丽英 张刚 张雪英 |
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| 作者单位： | 太原理工大学信息工程学院 |
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| 基金项目： | 国家自然科学基金资助项目 (60 172 0 70 ) |
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| 摘 要： | 根据一阶数字滤波器的低通特性，提出了改善G.728算法增益滤波器性能的方法，实验结果表明此方法可使平均分段信噪比提高约0.5dB，以此为筹码，可以降低G.728算法其他模块的计算复杂性。
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| 关 键 词： | 语音编码 低延迟码激励线性预测 增益滤波 G.728算法 |
| 文章编号： | 1007-9432(2002)03-0232-02 |
Enhanced Gain Filtering of G. 728 Speech Coding Algorithm |
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| Huangfu Liying,Zhang Gang,Zhang Xueying.Enhanced Gain Filtering of G. 728 Speech Coding Algorithm[J].Journal of Taiyuan University of Technology,2002,33(3):232-233,237. |
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| Authors: | Huangfu Liying Zhang Gang Zhang Xueying |
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| Institution: | College of Information Engineering of TUT |
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| Abstract: | Based on the low pass character of one order digital filter, this paper proposes a method improving the performance of G.728 gain filter. In our experiment, it was shown that the average segment SNR have been raised about 0.5 dB with the method. Based on it, the complexity of the other LPC filters can be decreased. |
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| Keywords: | LD CELP Gain filter Speech coding |
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