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本文对基于Ｈ．３２４的可视电话系统中的音频编解码算法作了简要描述，给出了音频子系统的体系结构，讨论了全双工音频实现中的几个策略．
This article is based on H. 324 video telephone system in the audio codec algorithm is briefly described, gives the audio subsystem architecture, discusses the full duplex audio implementation of several strategies.