| 发明名称 |
Method and Device for Decoding Signal |
| 摘要 |
A method and device for decoding a signal. The method for decoding a signal includes: obtaining spectral coefficients of sub-bands from a received bitstream by means of decoding; classifying sub-bands in which the spectral coefficients are located into a sub-band with saturated bit allocation and a sub-band with unsaturated bit allocation; performing noise filling on a spectral coefficient that has not been obtained by means of decoding and is in the sub-band with unsaturated bit allocation, so as to restore the spectral coefficient that has not been obtained by means of decoding; and obtaining a frequency domain signal according to the spectral coefficients obtained by means of decoding and the restored spectral coefficient. Therefore, a sub-band with unsaturated bit allocation in a frequency domain signal may be obtained by classification, thereby improving signal decoding quality. |
| 申请公布号 |
US2015269947(A1) |
申请公布日期 |
2015.09.24 |
| 申请号 |
US201514730524 |
申请日期 |
2015.06.04 |
| 申请人 |
Huawei Technologies Co., Ltd. |
发明人 |
Liu Zexin;Qi Fengyan;Miao Lei |
| 分类号 |
G10L19/002;G10L19/02 |
主分类号 |
G10L19/002 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for decoding a signal, wherein the method comprises:
obtaining spectral coefficients of a plurality of sub-bands from a received bitstream by decoding the received bitstream; classifying the sub-bands in which the spectral coefficients are located into a sub-band with saturated bit allocation and a sub-band with unsaturated bit allocation; performing noise filling on a spectral coefficient that has not been obtained by decoding the received bitstream and is in the sub-band with unsaturated bit allocation so as to restore the spectral coefficient that has not been obtained by decoding the received bitstream; and obtaining a frequency domain signal according to the spectral coefficients obtained by decoding the received bitstream and the restored spectral coefficient. |
| 地址 |
Shenzhen CN |
