QUALITY ESTIMATION OF SPEECH PASSING IN COMMUNICATION NETWORKS OFSPECIAL USERS USING IP-PROTOCOL

Mykola O. Masesov, Igor V. Panchenko, Leonid O. Bondarenko, Vyacheslav V. Malyh

Abstract


In the article the methods of estimation of quality of transmission of are in communication of the special users networks with the use of Internet Protocol. Methods are n with the use of intermediate index about quality – MOS and method which is determined the of Е-model and rating. Even services are for to the classes taking into account network and terminal curvatures, and also delay of transmission of , from the end to . Advantages and of application are investigational each of methods of determination of quality of transmission of . Analytical expressions are presented for the estimation of R-factor and determination of delay in delivery of packages. The comparative analysis of types of voice codes is conducted, they are resulted basic descriptions. Basic parameters and indexes which can be taken for at development and introduction of s for the estimation of quality of transmission of in communication of the special users networks are resulted.


Keywords


ІР-network; quality of transmission of voice; communication of the special user network.

GOST Style Citations


ITU-T Recommendation P.800 (08/1996). Methods for subjective determination of transmission quality.

ITU-T Recommendation ITU-T G.107 (06/2012)The E-model: a computational model for use in transmission planning.

ITU-T Recommendation G.109 (09/99). Definitition of categories of speech transmission quality.

Сергеенко В.С., Баринов В.В. Сжатие данных, речи, звука и изображений в телекоммуникационных системах, 2009, ИП “РадиоСофт”.

Рихтер С.Г. Кодирование и передача речи в цифровых системах подвижной связи, 2009, Горячая линия — Телеком.





ISSN 2410-7336 (Online)

ISSN 2311-7249 (Print)