Re: [WM]: Content-based for watermark in audio.

[Yi-Wen Liu <jacobliu@ccrma.Stanford.EDU>]

Hi Khoa,

I don't know if this matches your interests exactly, anyways, I am working on a dissertation titled "audio watermarking through
parametric representations" so I've done some survey.  For psychoacoutic models in particular, there've been plenty of literature.
A good beginning point, for example, would be Cox et al's text on watermarking -- there is a section for audio watermarking, 
and detailed algorithms for computing the masking threshold is given.   
More refined models on psychoacoustics can be found from the classic Zwicker and Fastl text on psychoacoustics.

If you are interested in multichannel audio watermarking, I remember
(vaguely) there is
a paper in ICASSP04 that reports a data payload of several kbits/sec, so you may want to check the conference proceedings.

sincerely,
yiwen


> 
> Hi,
>  I've a question. I want to watermark in audio base on its content, 
> and i read lots of papers for these articles. However there're no 
> practice. I know that any method must have a PsychoAcoutic Model. Would you tell me how many way to construct it and what a good
method in practice.
>   I really need it. Please tell me as soon as possible.
>   Thank alots.

-- 
Yi-Wen Liu         http://www.stanford.edu/~jacobliu
PhD Candidate, Electrical Engineering, Stanford University
---------------------------------------------------------------
"Silver and gold have I none, but such as I have give I thee"


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