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中文摘要：
针对主流移动音频编码器AVS-P10所采用的语音丢帧隐藏算法在不同丢帧的情况下语音恢复效果存在的不足,提出了一种自适应的语音丢帧隐藏算法,该算法根据不同的坏帧模式自适应地采取不同的坏帧恢复方法,对坏帧中的基音周期参数和ISF系数充分利用前后分别收到的好帧采用更优化的线性预测方法恢复.实验表明：与AVS-P10中的丢帧隐藏算法相比,本文方法在坏帧率低于3%时有更好的语音质量恢复效果.
英文摘要：
For defects of the traditional frame loss concealment algorithm employed in the current mainstream audio codec AVS-P10 standard under different circumstances of dropped frames, a new adaptive frame loss concealment algorithm was presented to solve the problem. The algorithm adaptively took different recovery method based on a va- riety of different bad frame modes, and the pitch period parameters and 1SF coefficients in had frame are recovered by a more optimized linear prediction method taking advantage of relative parameters in good frames received respectively before or after the current bad frame. The experiment results proved that the proposed method had better recovery effect than original method employed in audio codec of AVS-P10 standard when the frame error rate was less than 3 percentages of all transmitted frames.
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