Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (33): 159-161.
• 数据库、信号与信息处理 • Previous Articles Next Articles
CHEN Feng,WU Yucheng
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陈 峰,吴玉成
Abstract: In order to realize the intercommunication between systems which are based on LPC-10e and MELP speech coding algorithm,the transformation of speech coding data stream based LPC-10e to MELP can be realized by using the direct parameter transcoding.Direct conversion of LPC-10e speech coding pitch,voicing parameter into MELP corresponding parameters is achieved.The results show that,the method proposed not only improves the synthetic speech quality,but also reduces about 15% computational cost.
Key words: Linear Predictive Coding(LPC), speech coding, transcoding
摘要: 针对在采用LPC-10e和MELP两种不同的语音编码算法标准的通信系统中实现相互通信,提出一种从LPC-10e语音编码到MELP语音编码的参数直接转换方案,实现LPC-10e语音编码的基音周期、清浊音判决参数等转换成MELP语音编码相应参数。仿真结果表明,参数直接转换方案不仅提高了合成语音质量,而且降低了15%左右的编码运算量。
关键词: 线性预测, 语音编码, 编码转换
CHEN Feng,WU Yucheng. LPC-10e to MELP speech transcoding[J]. Computer Engineering and Applications, 2011, 47(33): 159-161.
陈 峰,吴玉成. LPC-10e到MELP语音编码转换[J]. 计算机工程与应用, 2011, 47(33): 159-161.
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http://cea.ceaj.org/EN/Y2011/V47/I33/159