太原理工大学学报2025，Vol.56Issue(3)：465-473,9.DOI:10.16355/j.tyut.1007-9432.20230161
基于幅值重排的抗倍速攻击音频水印算法
Audio Watermarking Algorithm Against Speed Attack based on Amplitude Rearrangement
摘要
Abstract
[Purposes]Digital audio watermarking technology refers to the technique of embed-ding a watermark signal with specific meaning into the original audio signal,which can be extracted when needed.This technology has important applications in copyright protection,content authentica-tion,and secure communication.With the increasing maturity of audio editing softwares and online au-dio editing websites,it is becoming more and more convenient to modify audios.Audio speeding-up is a common modification,but existing digital audio watermarking algorithms need to be improved in the robustness against audio speed-up attacks,so as to resist this kind of modification well.To address this problem,an audio watermarking algorithm based on waveform similarity overlap and amplitude rearrangement is proposed.[Methods]Based on the principle of speed-up,the proposed algorithm re-alized dividing of the audio region by waveform similarity overlap method,and determining of the in-variant region that exists before and after speed-up as the embedding area to ensure the stability of the watermark in speed-up attacks.After discrete cosine transform being performed on the embedding area,the mid-frequency area that is not easily perceptible and has good anti-attack properties was se-lected,and the amplitude rearrangement method was used to embed the watermark,so that the total energy of the area remained unchanged before and after embedding,ensuring the imperceptibility while improving the robustness of the watermarking algorithm against speed-up attacks.[Results]Ex-perimental results show that the algorithm can improve the robustness against speed-up attacks while maintaining the imperceptibility of audio watermarking,with an average bit error rate less than 0.02.关键词
音频水印/音频倍速/幅值重排/离散余弦变换/鲁棒性/不可感知性Key words
audio watermarking/audio speed increasing/amplitude rearrangement/discrete cosine Transform/robustness/imperceptibility分类
信息技术与安全科学引用本文复制引用
王鑫,黄樱,牛保宁,吴世强,兰方鹏,关虎..基于幅值重排的抗倍速攻击音频水印算法[J].太原理工大学学报,2025,56(3):465-473,9.基金项目
山西省重点研发计划202102010101004 （）
