摘要: |
自适应多速率(AMR)算法是第三代移动通信系统中语音业务所采用的语音编码标准。为研究AMR算法应用于汉语语音和英语语音所产生的差异,本文针对ARM语音编码算法的特点,在处理分析了大量汉语语音数据的基础上,对算法中的线谱频率(LSF)、基音周期等关键编码参数进行了比较并给出相应结合。本文的研究有助于AMR算法针对汉语语音的性能优化。 |
关键词: 汉语 英语 语音编码 AMR算法 线谱频率 基时周期 参数统计特性 |
DOI:10.3969/j.issn.1001-893X. |
修订日期:2001-12-13 |
基金项目: |
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Study on Chinese/English Speech Coding Parameters Statistical Characteristic for AMR Algorithm |
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Abstract: |
AMR (Adaptive Multi-Rate) standard is adopted by 3G system in speech service. The difference between the statistical characteristic of AMR coding parameters on Mandarin and that on English is studied in this paper. By analyzing a lot of Mandarin speech data, the LSF, pitch and other coding parameters are compared and the corresponding conclusion is drawn. This study can be helpful to the improvement of AMR algorithm for Chinese language. |
Key words: Speech coding,AMR algorithm,LSF,Pitch, |