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1. 发明授权

US06101463A Method for compressing a speech signal by using similarity of the F.sub.1 /F.sub.0 ratios in pitch intervals within a frame 失效
标题翻译：通过使用帧内的音调间隔中的F1 / F0比的相似度来压缩语音信号的方法
公开(公告)号：US06101463A
公开(公告)日：2000-08-08
申请号：US169164
申请日：1998-10-08
申请人： Sang Hyo Lee , Myung Jin Bac , Hyubg Goue Chung , Young Ho Park , Jae Chan Yang
发明人： Sang Hyo Lee , Myung Jin Bac , Hyubg Goue Chung , Young Ho Park , Jae Chan Yang
IPC分类号： H03M7/30 , G10L19/02 , G10L25/15
CPC分类号： G10L19/0204 , G10L25/15
摘要： A method for compressing a speech signal by using similarity of the F.sub.1 /F.sub.0 ratios in pitch intervals within a frame. This method comprises the steps of: dividing the speech signal into frames, each being of a predetermined size; checking whether each of the divided frames corresponds to a voiced speech; obtaining an F.sub.1 /F.sub.0 ratio of an initial pitch interval and of subsequent pitch intervals of each frame corresponding to voiced speech; determining if data in each of the subsequent pitch intervals can be regarded as identical to data in the initial pitch interval by calculating if the difference between the obtained F.sub.1 /F.sub.0 ratio corresponding to the subsequent pitch interval and the obtained F.sub.1 /F.sub.0 ratio of the initial pitch interval is smaller than a predetermined value; and compressing data in each of the subsequent pitch intervals if it can be regarded as identical to data in the initial pitch interval according the determining step above.
摘要翻译：一种通过使用帧内的音调间隔中的F1 / F0比的相似度来压缩语音信号的方法。该方法包括以下步骤：将语音信号划分成帧，每个帧具有预定大小; 检查每个分割帧是否对应于有声语音; 获得对应于有声语音的每帧的初始音调间隔和后续音调间隔的F1 / F0比; 通过计算所获得的与后续音调间隔相对应的F1 / F0之间的差和所获得的初始音调间隔的F1 / F0比之差，确定后续音调间隔中的每一个中的数据是否可以被认为与初始音调间隔中的数据相同音调间隔小于预定值; 以及如果根据上述确定步骤可将其视为与初始音调间隔中的数据相同，则压缩每个后续音调间隔中的数据。

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