Proceedings of the First International Workshop on Information Hiding
Speech Processing in the Auditory System
Speech Processing in the Auditory System
New echo embedding technique for robust and imperceptible audio watermarking
ICASSP '01 Proceedings of the Acoustics, Speech, and Signal Processing, 2001. on IEEE International Conference - Volume 03
Robust multiplicative patchwork method for audio watermarking
IEEE Transactions on Audio, Speech, and Language Processing
Audio watermarking of stereo signals based on echo-hiding method
ICICS'09 Proceedings of the 7th international conference on Information, communications and signal processing
Improved spread spectrum: a new modulation technique for robust watermarking
IEEE Transactions on Signal Processing
Time-spread echo method for digital audio watermarking
IEEE Transactions on Multimedia
Secure spread spectrum watermarking for multimedia
IEEE Transactions on Image Processing
A novel echo-hiding scheme with backward and forward kernels
IEEE Transactions on Circuits and Systems for Video Technology
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In audio watermarking, the robustness against pitch-scaling attack, is one of the most challenging problems. In this paper, we propose an algorithm, based on traditional time-spread(TS) echo hiding based audio watermarking to solve this problem. In TS echo hiding based watermarking, pitch-scaling attack shifts the location of pseudonoise (PN) sequence which appears in the cepstrum domain. Thus, position of the peak, which occurs after correlating with PN-sequence changes by an un-known amount and that causes the error. In the proposed scheme, we replace PN-sequence with unit-sample sequence and modify the decoding algorithm in such a way it will not depend on a particular point in cepstrum domain for extraction of watermark. Moreover proposed algorithm is applied to stereo audio signals to further improve the robustness. Experimental results illustrate the effectiveness of the proposed algorithm against pitch-scaling attacks compared to existing methods. In addition to that proposed algorithm also gives better robustness against other conventional signal processing attacks.