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发明名称
一种音频信号的压缩/解压缩方法
摘要
本发明提供一种音频信号,尤其是语音信号的高比例压缩/解压缩方法。对音频信号进行以音元为基本单位的操作,包括切割、分段、比较、取舍以及补插。通过对音元的比较,舍去并标记性状相近的音元,使原信号缩短,实现压缩;根据被压缩信号中的标记,制作音元或恢复原音元,并补插入压缩信号中,使原信号变长,实现解压缩。经本压缩方法压缩过的信号,并不改变其原有的结构特征,可用其它通用压缩工具(如,ARJ等)对其进行再压缩。
申请公布号
CN1198047A
申请公布日期
1998.11.04
申请号
CN97106402.4
申请日期
1997.04.28
申请人
苏勇;沈雪良
发明人
苏勇;沈雪良
分类号
H04B1/64
主分类号
H04B1/64
代理机构
代理人
主权项
1.一种音频信号压缩/解压缩方法,其特征在于以音元为基本操作单元,通过舍去并标记音元,使原音频信号变短,实现压缩;根据被保留的音元以及所作的标记制作音元,并将其补插于被舍去处,使原被压缩信号变长,实现解压缩。
地址
200540上海市石化梅州新村29号601室
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