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DOI码：10.1109/ICALIP.2008.4590009

发表刊物：International Conference on Audio, Language and Image ProcessingInternational Conference on Audio, Language and Image Processing

摘要：This paper proposes a sinusoidal model based on modified sinusoidal analysis and synthesis for the error concealment o lost frames. The parameters of the sinusoidal model are adjusted according to the property of the audio signals. It is applied to MPEG-2 AAC decoder for an error concealment of decoder based only. An analysis and synthesis of the windowed previousframe of the lost one and the residual samples are used to synthesize a new frame. Then overlap-add mechanism between the synthesized ftame and the residual samples is applied to reconstruct the lost frame. This method can provide an audio quality with 1.3 average ODG score improvement under the loss rate of frame up to 10% without increasing the algorithm delay of the AAC decoding system., It is implemented on fixed-point DSPs, and the computational complexity is comparative to the optimized version of the decoder.

合写作者：Dou, Weibei,Dellandrea, Emmanuel, Dou, Weibei, Chen, Liming

第一作者：Hou, Huan,Zhang, Xuanlei, Dou, Weibei, Dong, Ming

论文类型：会议论文

通讯作者：Dou, Weibei

页面范围：22-28

是否译文：否

发表时间：2008-07-07