CLC number: TP309.2
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2017-04-27
Cited: 0
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Wei Liu, Ai-qun Hu. A subband excitation substitute based scheme for narrowband speech watermarking[J]. Frontiers of Information Technology & Electronic Engineering, 2017, 18(5): 627-643.
@article{title="A subband excitation substitute based scheme for narrowband speech watermarking",
author="Wei Liu, Ai-qun Hu",
journal="Frontiers of Information Technology & Electronic Engineering",
volume="18",
number="5",
pages="627-643",
year="2017",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.1601503"
}
%0 Journal Article
%T A subband excitation substitute based scheme for narrowband speech watermarking
%A Wei Liu
%A Ai-qun Hu
%J Frontiers of Information Technology & Electronic Engineering
%V 18
%N 5
%P 627-643
%@ 2095-9184
%D 2017
%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.1601503
TY - JOUR
T1 - A subband excitation substitute based scheme for narrowband speech watermarking
A1 - Wei Liu
A1 - Ai-qun Hu
J0 - Frontiers of Information Technology & Electronic Engineering
VL - 18
IS - 5
SP - 627
EP - 643
%@ 2095-9184
Y1 - 2017
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/FITEE.1601503
Abstract: We propose a new narrowband speech watermarking scheme by replacing part of the speech with a scaled and spectrally shaped hidden signal. Theoretically, it is proved that if a small amount of host speech is modified, then not only an ideal channel model for hidden communication can be established, but also high imperceptibility and good intelligibility can be achieved. Furthermore, a practical system implementation is proposed. At the embedder, the power normalization criterion is first imposed on a passband watermark signal by forcing its power level to be the same as the original passband excitation of the cover speech, and a synthesis filter is then used to spectrally shape the scaled watermark signal. At the extractor, a bandpass filter is first used to get rid of the out-of-band signal, and an analysis filter is then employed to compensate for the distortion introduced by the synthesis filter. Experimental results show that the data rate is as high as 400 bits/s with better bandwidth efficiency, and good imperceptibility is achieved. Moreover, this method is robust against various attacks existing in real applications.
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