The following information was submitted:
Transactions: INTERNATIONAL JOURNAL of MATHEMATICAL MODELS AND METHODS IN APPLIED SCIENCES
Transactions ID Number: 17-331
Full Name: Miroslav Voznak
Position: Associate Professor
Age: ON
Sex: Male
Address: VSB-Technical University of Ostrava, 17. listopadu 15, 708 00 Ostrava
Country: CZECH REPUBLIC
Tel: +420 603565965
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Fax:
E-mail address: miroslav.voznak@vsb.cz
Other E-mails: voznak@gamil.com
Title of the Paper: E-model Modification for Case of Cascade Codecs Arrangement
Authors as they appear in the Paper: Miroslav Voznak
Email addresses of all the authors: miroslav.voznak@vsb.cz
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 ransmission 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. The proposed correction function improves the current computational non-intrusive approach that is described in recommendation!
ITU-T G.107, so called E-model.
Keywords: Cascade codecs arrangement, E-model, MOS, PESQ method, R-factor, Speech quality
EXTENSION of the file: .pdf
Special (Invited) Session: Network Delay Variation Model Consisting of Sources with Poisson's Probability Distribution
Organizer of the Session: 659-405
How Did you learn about congress: Dr. Michal Halas (michal.halas@hcom.sk), Dr. Marek Neruda (nerudmar@fel.cvut.cz), prof. Ivan Baronak (baronak@chello.sk)
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