发明名称 |
ENCODING METHOD AND DEVICE, AND DECODING METHOD AND DEVICE |
摘要 |
Disclosed is an encoding method of an encoder. The encoder generates a first MDCT coefficient by converting an input signal, and generates an MDCT index by quantizing the first MDCT coefficient. The encoder generates a second MDCT coefficient by inversely quantizing the MDCT index, and calculates an MDCT error coefficient by a difference between the first MDCT coefficient and the second MDCT coefficient. Next, said encoder generates an error index by encoding the MDCT error coefficient, and generates a gain index corresponding to a gain of the first MDCT coefficient from the first MDCT coefficient and the second MDCT coefficient. |
申请公布号 |
WO2011122875(A3) |
申请公布日期 |
2011.12.22 |
申请号 |
WO2011KR02227 |
申请日期 |
2011.03.31 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE;SUNG, JONGMO;KIM, HYUN WOO;BAE, HYUN JOO |
发明人 |
SUNG, JONGMO;KIM, HYUN WOO;BAE, HYUN JOO |
分类号 |
G10L19/005;G10L19/02;G10L19/032 |
主分类号 |
G10L19/005 |
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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