Open AccessA Robust Wavelet Based Watermarking Scheme For Digital Audio
Author(s) -
Ayad I. Abdulsada
Publication year - 2012
Publication title -
iraqi journal for electrical and electronic engineering/al-maǧallaẗ al-ʻirāqiyyaẗ al-handasaẗ al-kahrabāʼiyyaẗ wa-al-ilikttrūniyyaẗ
Language(s) - English
Resource type - Journals
eISSN - 2078-6069
pISSN - 1814-5892
DOI - 10.37917/ijeee.8.1.7
Subject(s) - digital watermarking , robustness (evolution) , watermark , computer science , embedding , audio signal , wavelet , digital audio , scheme (mathematics) , least significant bit , audio signal processing , steganography , artificial intelligence , computer vision , algorithm , speech recognition , mathematics , speech coding , image (mathematics) , mathematical analysis , biochemistry , chemistry , gene , operating system
In this paper, a robust wavelet based watermarking scheme has been proposed for digital audio. A single bit is embedded in the approximation part of each frame. The watermark bits are embedded in two subsets of indexes randomly generated by using two keys for security purpose. The embedding process is done in adaptively fashion according to the mean of each approximation part. The detection of watermark does not depend on the original audio. To measure the robustness of the algorithm, different signal processing operations have been applied on the watermarked audio. Several experimental results have been conducted to illustrate the robustness and efficiency of the proposed watermarked audio scheme.