Leydig, Voit & Mayer, Ltd.
Method and device for performing frame erasure concealment to higher-band signal
The present invention discloses a method for performing a frame erasure concealment to a higher-band signal, including: calculating a periodic intensity of a higher-band signal with respect to a lower-band signal; judging whether the periodic intensity of the higher-band signal is higher than or equal to a preconfigured threshold; if the periodic intensity of the higher-band signal is higher than or equal to the preconfigured threshold, using a pitch period repetition method to perform the frame erasure concealment to the higher-band signal of a current lost frame; and if the periodic intensity of the higher-band signal is lower than the preconfigured threshold, using a previous frame data repetition method to perform the frame erasure concealment to the higher-band signal of the current lost frame. The present invention further discloses a device for performing a frame erasure concealment to a higher-band signal and a speech decoder. The problem that the quality of the voice signal is lowered is avoided.
Huawei Technologies Co., Ltd.
G G
G10L G10L
inventional additional
Jianfeng Wei Yi Wuzhou Zhengzhong Lijing Qing Chen Dongqi Lei Fengyan
Xu Li Yang Zhan Du Xu Zhang Hu Wang Miao Qi