ID 原文 译文
39206 而且突变成分通常承载更重要的信息，是信号处理要分析提取的目标。 The mutant components usually carried more important information, which was the target of signal processing to analyze.
39207 为有效检测出突变成分并将这两种成分分离，需要完整精确地检测提取出突变成分。 To detect mutant components and separate these two components effectively, it was necessary to accurately detect and extract the mutant components.
39208 为此本文提出一种基于启发式掩模经验模态分解(Empirical Mode Decomposition，EMD)的音频突变成分检测方法， Thus, the paper proposed an audio mutant component detection method based on heuristic EMD with a masking signal.
39209 该检测方法中使用启发式掩模EMD分解音频信号并从中提取出各点的瞬时信息作为检测特征，同时本文提出一种窗长自适应更新策略来设定适合突变成分的长度。 In this detection method, heuristic EMD with a masking signal was used to decompose the audio signal and extract the instantaneous information of each point as the detection feature, and meanwhile a window adaptive updating strategy was proposed in this paper to set the suitable lengths of mutant components.
39210 在IOWA的乐器音频数据集中，该检测方法能够实现以98.68%的检测精确率和87.65%的检测召回率将音频突变成分检测出来。 In IOWA's instrument audio dataset, this detection method could detect audio mutant components with a detection accuracy of 98.68% and a detection recall of 87.65%.
39211 此外该检测方法无需人为干预，并且检测出的突变成分维度一致，便于进行后续的特征提取、分类识别等处理操作。 What's more, the detection method does not require human intervention and the detected mutant components have the same dimensions, which is convenient to perform subsequent processes such as feature extraction, classification and so on.
39212 在语音通信网络中，为获得良好的语音通信质量，抗丢包技术不可或缺。 In a voice communication network, packet loss concealment technology is crucial for ideal voice communication.
39213 为此，本文基于ITU G.722.1语音编码器，提出一种分布式语音编码方法。 A distributed speech coding method based on the ITU G.722.1 speech encoder is proposed in this paper.
39214 该方法在G.722.1编码器的基础上，构建一个互补编码器; The main process can be divided into several stages.First, A complementary encoder is built based on the the G.722.1 encoder.
39215 然后在编码端，对同一帧语音分别用G.722.1编码器和其互补编码器进行语音编码，并发送编码结果; Then, the encoder sends the encoding results of both G.722.1 encoder and the complementary encoder for the same frame of speech.