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Analytical Study of High Pitch Delay Resolution Technique for Tonal Speech Coding

机译:高音延迟解析技术在语音编码中的解析研究

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Problem statement: In tonal-language speech, since tone plays important role not only on the naturalness and also the intelligibility of the speech, it must be treated appropriately in a speech coder algorithm. Approach: This study proposes an analytical study of the technique of High Pitch Delay Resolutions (HPDR) applied to the adaptive codebook of core coder of Multi-Pulse based Code Excited Linear Predictive (MP-CELP) coder. Results: The experimental results show that the speech quality of the MP-CELP speech coder with HPDR technique is improved above the speech quality of the conventional coder. An optimum resolution of pitch delay is also presented. Conclusion: From the analytical study, it has been found that the proposed technique can improve the speech coding quality.
机译:问题陈述:在声调语言中,由于声调不仅在语音的自然性和清晰度方面都起着重要作用,因此必须在语音编码器算法中对其进行适当处理。方法:本研究提出了对应用于基于多脉冲的代码激励线性预测(MP-CELP)编码器核心编码器自适应编码本的高音调延迟分辨率(HPDR)技术的分析研究。结果:实验结果表明,采用HPDR技术的MP-CELP语音编码器的语音质量比传统编码器的语音质量有所提高。还提出了音调延迟的最佳分辨率。结论:通过分析研究发现,该技术可以提高语音编码质量。

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