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 |
US2014046672(A1) |
申请公布日期 |
2014.02.13 |
申请号 |
US201314057924 |
申请日期 |
2013.10.18 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
LIU ZEXIN;MIAO LEI;TALEB ANISSE |
分类号 |
G10L19/26 |
主分类号 |
G10L19/26 |
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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