发明名称 |
SIGNAL CLASSIFICATION METHOD AND DEVICE, AND ENCODING AND DECODING METHODS AND DEVICES |
摘要 |
Embodiments of the present invention provide a signal classification method and device, and encoding and decoding methods and devices. The encoding method includes: dividing a current frame into a low-frequency band signal and a high-frequency band signal; attenuating the high-frequency band signal or a to-be-encoded characteristic parameter of the high-frequency band signal according to an energy attenuation value of the low-frequency band signal, where the energy attenuation value indicates energy attenuation of the low-frequency band signal caused by encoding of the low-frequency band signal; and encoding the attenuated high-frequency band signal or the attenuated to-be-encoded characteristic parameter of the high-frequency band signal. The technical solutions according to the embodiments of the present invention can improve the effect of combining the low-frequency band signal and the high-frequency band signal at the decoder.
|
申请公布号 |
US2013117029(A1) |
申请公布日期 |
2013.05.09 |
申请号 |
US201213728201 |
申请日期 |
2012.12.27 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD.;HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
LIU ZEXIN;MIAO LEI;TALEB ANISSE |
分类号 |
G10L19/008 |
主分类号 |
G10L19/008 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|