Brinks Hofer Gilson & Lione
Method and apparatus for implementing speech decoding in speech decoder field of the invention
The present disclosure relates to a decoding method and apparatus. The method includes: receiving data frames from the coder; if any erroneous frame appears, calculating a pitch lag parameter of the erroneous frame; decoding the data frames according to the calculated pitch lag parameter of the erroneous frame, and obtaining decoded data. The process of determining the pitch lag parameter includes: determining the number of continuous erroneous frames and the pitch lag parameter of the previous frame; adjusting the pitch lag parameter of the previous frame according to the number of the continuous erroneous frames and a preset adjustment policy, and calculating and determining the pitch lag parameter of a current erroneous frame, wherein the preset adjustment policy is adjusting the determined pitch lag parameter of the current erroneous frame within a preset value range according to the number of the continuous erroneous frames.
Huawei Technologies Co., Ltd.
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additional inventional additional
Shenghu Wei Zhengzhong Qing Lijing Jianfeng Chen
Sang Li Du Zhang Xu Xu Hu