Re: [AUDITORY] PESQ

[Paris Smaragdis <paris@xxxxxxxxxxxxx>]

Hi Stefan,
As I understand it, the licenses you point to are either for developing/using your own implementation of PESQ, or for using the official implementation. If you use a third party implementation it is their responsibility to obtain the proper licenses, not yours. Perhaps Graham, can help clarify Opticom's position on this.

Paris


On Jul 24, 2013, at 5:44 AM, Stefan Bleeck <bleeck@xxxxxxxxx> wrote:

> Dear Omid, your doubt qualifies you as a scientist :) I could not
> believe it either...
> Here is the web site:
> http://www.opticom.de/licensing/pesq.php
> 
> These are the exact numbers (obtained from Opticom by email):
> PEXQ SW Suite incl. POLQA (executable) regular is 8.900,00 EUR ./.
> academic discount 30 %. (To clarify: it's a one-off, not per annum) It
> was made clear to me that I cannot publish results obtained using my
> PESQ code in an academic journal without a license.
> 
> The algorithms are freely available (I got them from Loizou's
> fantastic "speech enhancement" book), but that apparently doesn't mean
> that we can use them for free...
> 
> All of that now raises the question: what is the best speech quality
> algorithm that we can use for free. My current favourite: segSNR. But
> I am not sure any more that this actually IS free. What do you think?
> 
> Stefan
> 
> 
> 
> 
> 
> 
> On 24 July 2013 05:44, Sadjadi, Omid <sadjadi@xxxxxxxxxxxx> wrote:
>> Can you point us to the document that has this information? I highly doubt this.
>> 
>> The paper describing PESQ is publicly available (to IEEE members), which means everyone can implement and use this metric:
>> 
>> A.W. Rix, J.G., Beerends, M.P. Hollier and A.P. Hekstra, "Perceptual evaluation of speech quality (PESQ)-a new method for speech quality assessment of telephone networks and codecs," in Proc. IEEE ICASSP, Salt Lake City, UT, May 2001, pp.749-752.
>> 
>> Omid
>> ________________________________________
>> From: AUDITORY - Research in Auditory Perception [AUDITORY@xxxxxxxxxxxxxxx] on behalf of Stefan Bleeck [bleeck@xxxxxxxxx]
>> Sent: Tuesday, July 23, 2013 9:43 AM
>> To: AUDITORY@xxxxxxxxxxxxxxx
>> Subject: [AUDITORY] PESQ
>> 
>> I just found out that the _academic_ use of PESQ (perceptual
>> evaluation of speech quality, ITU recommendation P.862), that is
>> described with MATLAB source code  in Loizou's Speech Enhancement
>> book, requires a license that costs around $7000 per year. I write
>> this as a warning for others against using it (unless you happen to
>> have the spare cash), because we didn't know this and did a lot of
>> work with it that we now can't publish.
>> 
>> 
>> --
>> Dr. Stefan Bleeck
>> Hearing and Balance Centre
>> Institute of Sound and Vibration Research
>> Faculty of Engineering and the Environment
>> University of Southampton, SO17 1BJ, UK
>> Room 4093, Tizard building (13)
>> bleeck@xxxxxxxxx Tel.: 02380 596682
> 
> 
> 
> -- 
> Dr. Stefan Bleeck
> Hearing and Balance Centre
> Institute of Sound and Vibration Research
> Faculty of Engineering and the Environment
> University of Southampton, SO17 1BJ, UK
> Room 4093, Tizard building (13)
> bleeck@xxxxxxxxx Tel.: 02380 596682