RE: [WM]: Watermarking question

["Ruan, Huawei" <huawei.ruan@marquette.edu>]

As far as I know, there is still no industry standard for speech = watermarking. The most general technique is  to apply
psyacoustic model (such as temperal masking or frequency masking) in the watermarking process such that there is no perceptual = distortion introduced.
The ability of surviving speech compression is determined by the = robustness of your watermarking algorithms, some algorithms do
have good = performance of surviving compression.
A good article about speech watermarking is,   Mitchell Swanson etc,. " Robust Audio watermarking using perceptual = masking"
 
Hope this helps.
 
Huawei Ruan
 
EECE department 
Marquette University, Milwaukee, WI

________________________________

From: watermarking-owner@watermarkingworld.org on behalf of Ronen Cohen, = CEM, R&D 
Sent: Sun 1/9/2005 8:56 AM
To: watermarking@watermarkingworld.org
Subject: [WM]: Watermarking question



Hi folks,

I'm interesting in speech watermarking algorithm (for PC or DSP) for = authentication purposes and I have the following questions:

1.      Is there any standard for speech watermarking?
2.      What are the main techniques usually used for speech
watermarking?
3.      Is there any watermark technique can work with and survive
speech compression methods (like G729/G723)?
4.      Where I can find further technical information about speech
watermarking - books, articles, standards?



Any answer will be appreciated.



Thanks,



Ronen Cohen


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