发明名称 |
A METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL |
摘要 |
A method of decoding an audio signal comprises obtaining a window feature of previous window frame indicating a window which is used to previous window frame; extracting first window feature information indicating a length of right window slope of current window frame; when the first window feature information indicates a length of long window slope, determining a window feature of the current window frame by using the first window feature information and the window feature of the previous window frame; when the first window feature information does not indicate a length of long window slope, extracting second window feature information indicating a unit of frequency transform of the current window frame; and determining a window feature of the current window frame by using the first window feature information, the second window feature information and the window feature of the previous window frame; and decoding an audio signal based on the window feature of the current window frame. Accordingly, by determining a window feature of a current window frame using a window feature of a previous window frame as well as using a feature of a right window of the current window frame applied to a current frame, first window feature information indicating an MDCT unit and second window feature information, it is able to reduce the number of bits allocated to indicate the window feature. |
申请公布号 |
WO2010058931(A3) |
申请公布日期 |
2010.08.05 |
申请号 |
WO2009KR06714 |
申请日期 |
2009.11.16 |
申请人 |
LG ELECTRONICS INC.;YOON, SUNG YONG;LEE, HYUN KOOK;KIM, DONG SOO;LIM, JAE HYUN |
发明人 |
YOON, SUNG YONG;LEE, HYUN KOOK;KIM, DONG SOO;LIM, JAE HYUN |
分类号 |
G10L19/00;G10L19/02;G10L19/022 |
主分类号 |
G10L19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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