Hi,

Posting for a friend: there is a software that may be demanded by many
industries industries (telecom, mobile, VoIP,
etc). Here is the link to it:

http://www.sevana.fi/audio_speech_co...y_analysis.php

In two words what it is all about and why I would like to ask you to
cooperate on promoting it.

Some years ago (something like 2005 if I heard it right) Samsung was
desperately searching for a possibility to quickly test their voice
codecs
quality on the fly. The so-called Cisco MOS estimations (you can read
about
them on the page) are quite expensive and make no sense during codec
development process, however, developers do need to get some
understanding
of the codec quality. This task is demanded by phone manufacturers
(Nokia,
Samsung, Sony Ericsson etc for sure), telecom switch producers (Nokia,
Siemens, Alcatel...), Voice over IP software and hardware developers
(Skype and similar). Etc etc...

The company URL refers to is searching for partners to promote and
sell this
software product both as a desktop application as well as a DLL or
part of
other systems.

You can contact me or sa...@sevana.fi or Sevana CEO, Mr. Endre
Comiczi:

Sevana Oy
c/o Ecotax AB
Agricolankatu 11
00530 Helsinki
Finland

Endre Domiczi
Sevana Oy
CEO/Co-founder
Phone: +358 9 23164165
Mobile: +372 53485178

Thank you for your time reading this message and I hope this will lead
to a
good feedback as I sincerely believe that this utility is demanded.

Best regards,
Valeri

P. S. Answers to frequently asked questions:

*1. Is the quality checker compatible with all kinds of codec? Is
there any
test report that I can get? Will it also work for GSM, CDMA, VoIP and
even
GMR-1?*

*Answer1:* Answers to most of your questions are on the page:

"Further down one can find CISCO test results compared to our
automated
audio codecs quality tests algorithms (ALG1, ALG2):"

and there is a comparisson table for 7 different codecs against MOS
values.

Yes, one can test ANY codec:

"Are you interested in testing your own vocoder? It's no problem doing
that
even in the demo version of Sevana Vocoders Quality Checker! Please go
to
Tools -> Generate DLL Header, choose a desired file name and press OK.
Include the DLL header file into your project and provide two DLL
functions
according to the DLL header file. Thus, by implementing your own
vocoder as
a DLL file you will be able to test its quality using our software."

2. *There has been a great deal of R&D in this area over the last 15
years,
and there are established ITU-T standards that cover most of these
requirements. There are many benefits in using a standardised method
of
quality assessment: the performance of the method is well-understood,
they
have been developed through collaborative projects involving enormous
amounts of data, and so offer the greatest accuracy.

These standardised models are also available as easy-to-use
applications and
DLLs.

For more info please check out Psytechnics at http://www.psytechnics.com
-
who are leaders in this field - or take a look at ITU-T P.862 (PESQ) -
info
at http://en.wikipedia.org/wiki/PESQ . Methods are also available for
non-intrusive or no-reference measurement if you don't have access to
the
signal input to the codec - see for example ITU-T P.563. The ITU
standards
can be found through http://www.itu.int/rec/T-REC-P/en

Many excellent papers, and a survey of the state of the art in this
field,
were published in IEEE Transactions on Audio, Speech and Language
Processing
in November 2006:
http://ieeexplore.ieee.org/xpl/tocre...6&isnumber=360...

Answer2: *ITU standards cover simulation on a test bed/harness and
thus
although reduce costs are still relying on MOS.

Psytechnics Experience Manager is the so-called QoE and relies on real-
time
user input, and it is still based on MOS including operational
parameters.

The product I posted about is different and covers a specific area,
BEFORE
the
product is integrated and BEFORE you get to the user experience.

I believe it perfectly suits those who develop vocoders, or who are
willing
to choose or compare different codecs, or even audio files. I believe
one
can create a product similar to Experience Manager using the algoriths
of
the tool in question. *
*



See More: Automatic voice codecs quality checker - partners search