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Re: [WM]: Ask about EAQUAL and ODG
Hi=1B$B!$=1B(BLien,
I am very happy to answer your question. You are right! One cannot =
compute the ODG value of a marked audio file if its sampling rate
is different from the reference.
If you really want to do this, you would better revise this software =
yourself since the source code is available. But, I think it is
not necessary.
The function of the ODG value computed by EAQUAL is to evaluate the =
magnitude distortion of each audio frame. In this sense, one
cannot compute the ODG value when the test file and the reference file =
have different durations.
Overall, what you should do is to make sure the two files have the same =
length.
If you have further questions, feel free to contact me.
Good luck for you research!
Jack Xiang
On 6/26/07, Nguyen Thi Huong Lien <kitty2910@gmail.com> wrote:
>
> Hi watermarkers,
>
> I use EAQUAL program to calculate ODG value of 2 audio files. However, =
> it doesnt work if 2 audio files have different sampling rate. Is there =
> anyone know how to calculate ODG value for 2 files with different =
sampling rate?
>
> Thanks,
> Lien
>
--
Best regards.
Shijun Xiang (Ph.D)
Email: xiangshijun@gmail.com
Tel: 82 2 3290 4764
Home Page: http://cist.korea.ac.kr/~xiangshijun/index.htm
Research lecturer, Center of Information Security Center (CIST), =
Graduate School of Information Security, Korea University,
anam-Dong, Seongbuk-Gu, Seoul 136-713, Korea
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