| 一种500 bps谐波随机激励语音编码算法 |
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| 引用本文： | 丁庆海,陈显治,曹铁勇,张雄伟. 一种500 bps谐波随机激励语音编码算法[J]. 解放军理工大学学报(自然科学版), 2000, 1(4): 37-40 |
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| 作者姓名： | 丁庆海 陈显治 曹铁勇 张雄伟 |
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| 作者单位： | 解放军理工大学通信工程学院 |
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| 摘 要： | 提出了一种基于谐波随机激励的变速率语音编码算法 ,其平均码率为 50 0 bps。给出了各种情况下的比特分配方案以及浊音激励参数的分析和合成过程。非正式主观测试表明 ,该算法的语音清晰度测试( DRT)为 90 %
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| 关 键 词： | 语音编码 声码器 谐波随机激励 变速率 |
A 500bps Harmonic Stochastic Excitation Speech Coding Algorithm |
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| DING Qing hai,CHEN Xian zhi,CAO Tie yong and ZHANG Xiong wei. A 500bps Harmonic Stochastic Excitation Speech Coding Algorithm[J]. Journal of PLA University of Science and Technology(Natural Science Edition), 2000, 1(4): 37-40 |
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| Authors: | DING Qing hai CHEN Xian zhi CAO Tie yong ZHANG Xiong wei |
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| Affiliation: | Institute of Communications Engineering, PLAUST, Nanjing 210016, China;Institute of Communications Engineering, PLAUST, Nanjing 210016, China;Institute of Communications Engineering, PLAUST, Nanjing 210016, China;Institute of Communications Engineering, PLAUST, Nanjing 210016, China |
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| Abstract: | In this paper, a varibale bit rate speech coding algorithm is presented at an average bit rate of 500 bps based on a mixed harmonic and stochastic modeling of the excitation signal. The bit allocation schedules in every case and the analysis by synthesis processes of the voiced parameters are described. The informal Diagnostic Rhyme Test (DRT) results show that the speech distinctness is 90%. |
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| Keywords: | speech encoding vocoder harmonic stochastic excitation variable bit rate |
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