发明名称 |
ENCODING METHOD AND DEVICE, AND DECODING METHOD AND DEVICE |
摘要 |
An encoding method of an encoder is provided. The encoder generates first MDCT coefficients by transforming an input signal, and generates MDCT indices by quantizing the first MDCT coefficients. The encoder generates second MDCT coefficients by dequantizing the MDCT indices, and calculates MDCT residual coefficients using differences between the first MDCT coefficients and the second MDCT coefficients. The encoder generates a residual index by encoding the MDCT residual coefficients, and generates gain indices corresponding to gains from the first MDCT coefficients and the second MDCT coefficients. |
申请公布号 |
EP2555186(A4) |
申请公布日期 |
2014.04.16 |
申请号 |
EP20110763047 |
申请日期 |
2011.03.31 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
SUNG, JONGMO;KIM, HYUN WOO;BAE, HYUN JOO |
分类号 |
G10L19/005;G10L19/24;G10L19/00;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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