摘要
本文提出了一种连续可变斜率增量(CVSD)调制多径搜索编码算法,经过大量的计算机模拟表明,这一算法的性能比CVSD单径搜索编码算法的性能有大的提高,并指出多径搜索编码方法性能稳定,克服了单径搜索编码方案中预测器与粗量化器间的相互作用导致的性能不稳定的缺点。这为研究高效语言编码技术提供了一条途径。
A multipath search algorithm of CVSD is proposed. It is shown both analytically and by simulations that the proposed multipath algorithm can overcome the unstability problem of the single-path algorithm and improve greatly the performances of the single- path algorithm. The proposed algorithm provides with a new way for further developing the high-performance speech-coding technology.
基金
国家博士后科学基金
关键词
CVSD
DM
多径搜索编码
语音编码
CVSD, Delta modulation, Multipath search algorithm, Speech coding
