The following information was submitted:
Transactions: INTERNATIONAL JOURNAL of APPLIED MATHEMATICS AND INFORMATICS
Transactions ID Number: 19-820
Full Name: Miroslav Voznak
Position: Associate Professor
Age: ON
Sex: Male
Address: VSB-Technical University of Ostrava, 17. listopadu 15/2172, 70833 Ostrava-Poruba
Country: CZECH REPUBLIC
Tel: +420603565965
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E-mail address: miroslav.voznak@vsb.cz
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Title of the Paper: Modification of non-intrusive computational method evaluating speech quality in cascade codecs arrangement
Authors as they appear in the Paper: Miroslav Voznak, Bohdan Borowik, Zbynek Kocur, Martin Tomes
Email addresses of all the authors: miroslav.voznak@vsb.cz, bo@borowik.info, zokl@fel.cvut.cz, tomes.mar@gmail.com
Number of paper pages: 9
Abstract: Speech quality assessment is one of the key matters of voice services and every provider should ensure adequate connection quality to end users. Speech quality has to be measured by a trusted method and results have to correlate with intelligibility and clarity of the speech, as perceived by the listener. It can be achieved by subjective methods but in real life we must rely on objective measurements based on reliable models. One of them is E-model that we can consider as mainly adopted method in IP telephony. This method is based on evaluation of transmission path impairments influencing speech signal, especially delays and packet losses. These parameters which are common in IP network can affect dramatically speech quality. In this article we present a new modification of Emodel that takes into consideration the cascade codecs arrangement. We performed numerous measurements and proposed a correction function that improves the current computational non-intrusive a!
pproach that is described in recommendation ITU-T G.107, so-called E-model.
Keywords: Cascade codecs arrangement, E-model, MOS, PESQ method
EXTENSION of the file: .pdf
Special (Invited) Session: E-model Improvement for Speech Quality Evaluation Including Codecs Tandeming
Organizer of the Session: 638-417
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