Robust audio watermarking using perceptual masking
Signal Processing
Proceedings of the First International Workshop on Information Hiding
A Secure, Robust Watermark for Multimedia
Proceedings of the First International Workshop on Information Hiding
An Asymmetric Public Detection Watermarking Technique
IH '99 Proceedings of the Third International Workshop on Information Hiding
Spread spectrum signaling for speech watermarking
ICASSP '01 Proceedings of the Acoustics, Speech, and Signal Processing, 2001. on IEEE International Conference - Volume 03
Digital Watermarks for Audio Signals
ICMCS '96 Proceedings of the 1996 International Conference on Multimedia Computing and Systems
Robust audio watermarking in the time domain
IEEE Transactions on Multimedia
Transform coding of audio signals using perceptual noise criteria
IEEE Journal on Selected Areas in Communications
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Watermarking is a technique used to label digital media, to protect copyright ownership, by hiding information into the signal. Watermarks must be imperceptible and robust against attacks. Besides, watermark robustness against several signal processing techniques can be ensured by exploiting a technique related to the spread spectrum communications. In this paper, we propose a procedure based on frequential substitution using a BPSK modulation with an adaptive carrier frequency, the choice of which depends on the original signal features. A secret key, generated during watermarking process, is used for retrieving hidden information.