To provide a signal processing method adapted to processing a compound signal in a lost packet concealment.
The signal processing method is composed of the following steps of: receiving a good frame next to a lost frame (s101), acquiring an energy ratio of signal energy of a good frame signal and energy of the compound signal corresponding to the same time with time of the good frame (s102); adjusting the compound signal according to the energy ratio (s103). By the method provided by the invention, the compound signal is adjusted based on the energy ratio of energy of a first good frame behind the lost frame and energy of the compound signal to guarantee that there does not generate waveform or energy jumping at the joint point of the lost frame and the first frame behind the lost frame, and smooth transition of the waveform can be realized, and music noise can be avoided.
WANG DONGQI
TU YONGFENG
WANG JING
ZHANG QING
MIAO LEI
XU JIANFENG
HU CHEN
YANG YI
DU ZHENGZHONG
QI FENGYAN
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Kato Kazunori
Katsuichi Nishimoto