Advanced Wigner Method Used in Progress of Embedding Watermark Message into Audio File

Chong, Uipil; Sohn, Chang Hwan; Tuan, Do Van

doi:10.1109/ifost.2006.312268

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“…The Wigner Distribution is used to analyze the content of the extracted watermark not for the watermark itself. In [4,25] Tuan et al proposed an algorithm for watermarking audio files using Wigner distribution by decomposing the audio file into smaller frequency band using wavelet transform, the watermark message is embedded in the most significant frequency bands.…”

Section: Introductionmentioning

confidence: 99%

The multi-bit watermarking method for speech signals in the time-frequency domain

Al-khassaweneh

Al-zoubi

Aviyente

2010

ICA

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In this paper, we introduce a new multi-bit watermarking method for speech signals in the joint time-frequency domain. For this purpose, we compute the Wigner distribution of the speech signal and embed the watermark in a subset of time-frequency cells. The problem of synthesizing the signal from the watermarked Wigner distribution is discussed and a simple algorithm to reconstruct the speech signal from its Wigner distribution is proposed. The performance of the proposed watermarking algorithm is illustrated for sample attacks.

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Section: Introductionmentioning

confidence: 99%