期刊名称：IAENG International Journal of Computer Science
印刷版ISSN：1819-656X
电子版ISSN：1819-9224
出版年度：2021
卷号：48
期号：4
语种：English
出版社：IAENG - International Association of Engineers
摘要：The popularization of recording equipment and the increase of audio signals propagated through air channels, re-recording becomes a common way to remove watermarks. Audio watermarking scheme robust against re-recording attack is challenging work. This paper proposed a robust audio watermarking algorithm used for source tracking. The logarithmic mean of coefficient (LMC) feature is defined, and the stability of this feature in re-recording attacks is analyzed. We given the method of embedding information by quantizing DCT intermediate frequency coefficients to quantize LMC features. For embedding, frame number and the watermark generated by copyright information are embedded in the carrier signal audio frame. The extraction end extracts the frame number to synchronize the watermarked audio frame, and then extracts the watermark to prove the audio owner and trace the source. Compared with common audio watermarks used for copyright protection, this algorithm is robust against signal processing and de-synchronization attacks, but also robust against re-recording attacks.
