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Journal from gdlhub / 2021-01-20 15:18:14
Oleh : Ledya Novamizanti, Gelar Budiman, Elsa Nur Fitri Astuti, Telkomnika
Dibuat : 2021-01-13, dengan 1 file

Keyword : audio watermarking; compressive sampling; discrete cosine transform; lifting wavelet transform; singular value decomposition;
Url : http://journal.uad.ac.id/index.php/TELKOMNIKA/article/view/14773
Sumber pengambilan dokumen : web

The growth of the internet and digital data has resulted forgery, modification and sharing of digital data without property rights. Audio watermarking is one of a solution to protect the copyright of an audio from copyright infringement. This paper proposes an audio watermarking method which is robust against attacks and high capacity. First, a synchronization bit is added to the audio host. After the audio host is decomposed by Lifting Wavelet Transform (LWT), then choose a subband from the output of LWT to be transformed by discrete cosine transform (DCT). Next, the matrix of the signal from DCT is selected for the singular value decomposition (SVD) process, so that is obtained U, S and V matrix. S matrix is embedded with the watermark. Before the embedding process, the watermark image is compressed by Compressive Sampling. The results show that the proposed watermarking system is highly robust against a kind attack of LPF, resampling, and linear speed change which is proven by its BER is zero.

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