发明名称 |
METHOD AND APPARATUS FOR ENCODING AND DECODING HIGH FREQUENCY SIGNAL |
摘要 |
Provided are a method and apparatus for encoding and decoding a high frequency signal by using a low frequency signal. The high frequency signal can be encoded by extracting a coefficient by linear predicting a high frequency signal, and encoding the coefficient, generating a signal by using the extracted coefficient and a low frequency signal, and encoding the high frequency signal by calculating a ratio between the high frequency signal and an energy value of the generated signal. Also, the high frequency signal can be decoded by decoding a coefficient, which is extracted by linear predicting a high frequency signal, and a low frequency signal, and generating a signal by using the decoded coefficient and the decoded low frequency signal, and adjusting the generated signal by decoding a ratio between the generated signal and an energy value of the high frequency signal. |
申请公布号 |
US2014372108(A1) |
申请公布日期 |
2014.12.18 |
申请号 |
US201414474220 |
申请日期 |
2014.09.01 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
CHOO Ki-hyun;MIAO Lei;OH Eun-mi |
分类号 |
G10L19/06;G10L25/12;G10L25/90;G10L19/02;G10L19/07 |
主分类号 |
G10L19/06 |
代理机构 |
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代理人 |
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主权项 |
1. An apparatus for encoding a high band signal, the apparatus comprising:
a processor configured to: to extract a coefficient by linear predicting a high band signal, and to encode the extracted coefficient; to generate a signal based on a low band signal and the extracted coefficient; and to obtain a gain from an energy value of the high band signal and an energy value of the generated signal and to encode the gain. |
地址 |
Suwon-si KR |