| MNB2算法在编解码器客观评估中的应用研究 |
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| 引用本文： | 陈明义,陈里,桂卫华.MNB2算法在编解码器客观评估中的应用研究[J].电路与系统学报,2004,9(1):126-129. |
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| 作者姓名： | 陈明义 陈里 桂卫华 |
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| 作者单位： | 中南大学,信息科学与工程学院,湖南,长沙,410083 |
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| 摘 要： | 本文讨论MNB2算法在编解码器质量的评估中的应用，探讨了编解码器进行客观评估的声学心理学基础，以及在此基础上建立的MNB2算法。深入剖析了MNB2算法的组成块TMNB，FMNB，并应用该算法对多种编解码器进行客观评估。实验证明该客观评估算法中主观与客观相关程度高，有较强的适应性，可靠性，实用性，完全可以应用于新型编解码器质量评估。
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| 关 键 词： | 客观评估 编解码器 频率测度 时间测度 |
| 文章编号： | 1007-0249(2004)01-0126-04 |
| 修稿时间： | 2003年5月27日 |
MNB2-Based Algorithm of Objective Evaluation of Speech Codecs |
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| CHEN Ming-yi,CHEN Li,GUI Wei-hua.MNB2-Based Algorithm of Objective Evaluation of Speech Codecs[J].Journal of Circuits and Systems,2004,9(1):126-129. |
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| Authors: | CHEN Ming-yi CHEN Li GUI Wei-hua |
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| Abstract: | MNB2 Algorithm is used in quality evaluation of codec. The basic theory of psychoacoustics for the objective evaluation of speech codecs is discussed, associated MNB2 algorithm is accordingly derived. As the components of MNB2 algorithm, TMNB and FMNB are studied extensively. This algorithm has been applied to the objective evaluation of several speech codecs. Experimental results show perfect correlation between subjective and objective evaluation. With good adaptability, reliability and practicability, the proposed algorithm can be applied to the quality evaluation of new codecs satisfactorily |
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| Keywords: | objective evaluation codec Frequency Measuring Normalizing Block (FMNB) Time Measuring Normalizing Block (TMNB) |
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