an effective watermarking method based on energy averaging in audio signals

Clicks: 117
ID: 248548
2018
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Abstract
Methods based on discrete cosine transform (DCT) have been proposed for digital watermarking of audio signals; however, the watermark is often vulnerable to data compression and signal processing. This paper presents an effective audio watermarking method by energy averaging of DCT coefficients such that an audio signal with watermark is robust to data processing. The method is to divide an audio signal into segments by three parameters defining the segment length, the segment sequence of watermark location, and the frequency range of DCT coefficients for watermark location. An error correcting code is also integrated to improve audio signal quality after watermarking. Experimental results show that the method is robust to data compression and many other kinds of signal processing. No original signal is required for decoding the watermark. Comparison of watermarking performance with a recent work validates that the watermarking method has better audio quality and higher robustness.
Reference Key
tsai2018mathematicalan Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;S. E. Tsai;S. M. Yang
Journal journal of power sources
Year 2018
DOI
10.1155/2018/6420314
URL
http://dx.doi.org/10.1155/2018/6420314
Keywords
civil engineering (general)mathematics engineering (general)

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