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公开(公告)号:US07096181B2
公开(公告)日:2006-08-22
申请号:US10277874
申请日:2002-10-23
申请人: Sung Kyo Jung , Yong Soo Choi , Sung Wan Yoon , Kyung Tae Kim , Dae Hee Youn
发明人: Sung Kyo Jung , Yong Soo Choi , Sung Wan Yoon , Kyung Tae Kim , Dae Hee Youn
IPC分类号: G10L19/14
CPC分类号: G10L19/00 , G10L2019/0013
摘要: A method for searching a codebook which predicts a residual element of an input voice signal includes combining each track of the input signal, forming track units including at least two tracks, and determining a pulse code for each track. The method further includes calculating energy for each track using an energy formula including a vector dot product, arranging or selecting codewords in a small track energy order, and searching or selecting an optimal pulse for a single- or double-pulse track of the selected codeword.