Xiaochen Wang

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This paper proposed an even grid based lattice vector quantization method for audio coding. The method uses energy priority, with basic code book and the ball-type expansion, which is applicable to the low rate of the variable-rate vector quantization coding. The method uses the lattice characteristics to resolve rapid index distribution problem, as well as(More)
Parent-child's relationships has attracted more and more attention reveals the lack of exploration of advanced technology in family education. Based on the collaborative project between Beijing Normal University and NOKIA, this article concerns about the prospects of providing services in family education by using mobile technology. This project is(More)