A novel bipolar time-spread echo hiding based watermarking method for stereo audio signals

Natgunanathan, Iynkaran and Xiang, Yong 2010, A novel bipolar time-spread echo hiding based watermarking method for stereo audio signals, in ICSPCS 2010 : Proceedings of the 4th International Conference on Signal Processing and Communication Systems, IEEE, United States, pp. 1-7.

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Title A novel bipolar time-spread echo hiding based watermarking method for stereo audio signals
Author(s) Natgunanathan, Iynkaran
Xiang, Yong
Conference name International Conference on Signal Processing and Communication Systems (4th : 2010 : Gold Coast, Qld.)
Conference location Gold Coast, QLD.
Conference dates 13-15 Dec. 2010
Title of proceedings ICSPCS 2010 : Proceedings of the 4th International Conference on Signal Processing and Communication Systems
Editor(s) [Unknown]
Publication date 2010
Conference series International Conference on Signal Processing and Communication Systems
Start page 1
End page 7
Total pages 7
Publisher IEEE
Place of publication United States
Keyword(s) audio watermarking
stereo
echo hiding
time-spread echo
echo kernel
Summary In this paper, a novel bipolar time-spread (TS) echo hiding based watermarking method is proposed for stereo audio signals, to overcome the low robustness problem in the traditional TS echo hiding method. At the embedding, echo signals with opposite polarities are added to both channels of the host audio signal. This improves the imperceptibility of the watermarking scheme, since added watermarks have similar effects in both channels. Then decoding part is developed, in order to improve the robustness of the watermarking scheme against common attacks. Since these novel embedding and decoding methods utilize the advantage of two channels in stereo audio signals, it significantly reduces the interference of host signal at watermark extraction which is the main reason for error detection in the traditional TS echo hiding based watermarking under closed-loop attack. The effectiveness of the proposed watermarking scheme is theoretically analyzed and verified by simulations under common attacks. The proposed echo hiding method outperforms conventional TS echo hiding based watermarking when their perceptual qualities are similar.
ISBN 1424479061
9781424479061
Language eng
Field of Research 090609 Signal Processing
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category E1 Full written paper - refereed
HERDC collection year 2010
Copyright notice ©2010, IEEE
Persistent URL http://hdl.handle.net/10536/DRO/DU:30032315

Document type: Conference Paper
Collection: School of Engineering
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