Computer Engineering and Applications ›› 2020, Vol. 56 ›› Issue (16): 69-74.DOI: 10.3778/j.issn.1002-8331.1905-0274
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WAN Dongqin, QING Chaojin, YANG Qingyao, CAI Bin, YU Wang
Online:
Published:
万东琴,卿朝进,阳庆瑶,蔡斌,余旺
Abstract:
The conventional audio transmission based on 1-bit Compressed Sensing(CS) suffers the problems of poor reconstruction accuracy and sound quality. In this paper, a 1-bit reconstruction method incorporating the featured information of sparse audio signal is proposed. At the sending-end, the featured information, which is constructed with the partial support set of the sparse audio signal, is superimposed on the 1-bit compressed audio signal for further transmission. At the receiving-end, the feature information and the 1-bit compressed audio signal are recovered, and the feature-aided 1-bit reconstruction algorithm is developed for audio reconstruction. Compared with the conventional audio reconstruction method based on 1-bit CS, the proposed method can improve the Mean Square Error(MSE) and Mean Opinion Score(MOS) of the reconstructed audio without increasing the cost of spectrum resources.
Key words: audio transmission, 1-bit compressed sensing, feature aided, superimposed sequence
摘要:
针对1-bit压缩感知音频传输存在重构精度与音频质量较差的问题,提出稀疏音频信号特征信息辅助的1-bit重构的方法。发送端利用稀疏音频信号的部分支撑集构建特征信息,并将特征信息扩频后叠加到1-bit压缩的音频信号上传输;接收端恢复特征信息和1-bit压缩的音频信号,并构建特征辅助的重构算法以恢复音频信号。相较于经典的1-bit音频压缩重构方法,所提方法可在不增加频谱开销的情况下改善恢复音频的MSE(Mean Square Error)值和MOS(Mean Opinion Score)评分。
关键词: 音频传输, 1-bit压缩感知, 特征辅助, 叠加序列
WAN Dongqin, QING Chaojin, YANG Qingyao, CAI Bin, YU Wang. Superimposed Feature Aided 1-bit CS Audio Transmission[J]. Computer Engineering and Applications, 2020, 56(16): 69-74.
万东琴,卿朝进,阳庆瑶,蔡斌,余旺. 叠加特征辅助的1-bit CS音频传输[J]. 计算机工程与应用, 2020, 56(16): 69-74.
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URL: http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.1905-0274
http://cea.ceaj.org/EN/Y2020/V56/I16/69