Researches on Echo Kernels of Audio Digital Watermarking Technology Based on Echo Hiding
Echo hiding is a digital audio watermarking technology which uses the human ears time-domain masking effects. In this paper, we proposed a new echo kernel with several echoes as an alternative to the single echo in conventional echo hiding. The proposed method introduced multiple small echoes instead of a single echo, the total energy of echo pulses will be distributed to each small component of the echo. For every single echo, the magnitude will be reduced, and it carries less energy. But the total energy embedded in increases, with the premise of ensuring the imperceptibility of the original audio. Therefore, the proposed method is more robust to common signal processing operations and resistant to tampering, comparing with the case of conventional echo hiding method. Also, in subjective evaluation the proposed method showed quite good perceptual quality.
audio atermarking echo hiding a new method multiple echoes
Xulai CAO Linghua ZHANG
College of Telecommunication & Information Engineering, Nanjing University of Posts and Telecommunic College of Telecommunication & Information Engineering,Nanjing University of Posts and Telecommunica
国际会议
南京
英文
1-5
2011-11-09(万方平台首次上网日期,不代表论文的发表时间)