NDLI: Robust FFT Based Watermarking Scheme for Copyright Protection of Digital Audio Data

Content Provider	IEEE Xplore Digital Library
Author	Dhar, P.K. Echizen, I.
Copyright Year	2011
Abstract	Digital watermarking has drawn extensive interest as a means of protecting digital contents from unauthorized copying. This paper proposes a robust audio watermarking scheme based on the Fast Fourier Transformation (FFT) for copyright protection of digital audio data. The watermarking scheme transforms the original audio into the frequency domain. The magnitude spectrum of the original audio is divided into an arbitrary number of segments and the energy of each segment is calculated. Watermarks are then embedded into most prominent peaks of the highest energy segment of the original audio. Watermarks are extracted by performing the inverse of the watermark embedding process. Simulation results indicate that our proposed watermarking scheme resists various attacks such as noise addition, cropping, re-sampling, re-quantization, and MP3 compression. Moreover, it outperforms Cox's method in terms of imperceptibility, while keeping comparable robustness with the Cox's method. Its SNR (signal-to-noise ratio) values range from 20 dB to 31 dB, in contrast to Cox's method whose SNRs range from only 11 dB to 23 dB.
Starting Page	181
Ending Page	184
File Size	302005
Page Count	4
File Format	PDF
ISBN	9781457713972
DOI	10.1109/IIHMSP.2011.85
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	fast Fourier transformation Watermarking copyright protection Copyright protection Robustness Human voice energy-based audio watermarking Digital audio players Signal to noise ratio
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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