About: Speech signal quality assessment for different VoIP technologies

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://vavtest.unob.cz/registr
Description	The new phenomenon in the communication world is called the convergence of telephony and data network in IP based principles. In line with global trends the structure of communication and information systems of the Armed Forces of the Czech Republic (ACR CIS) is undergoing profound changes. However, the modernization process brings not only economical advantages, but also many technical problems. One of the main challenges seems to be quality of speech signal in VoIP transmission channel. Nowadays, there are many standardized subjective and objective sophisticated methods of speech quality evaluations. Based on the knowledge of them and ITU-T standards, we have developed specific testbed and procedures to verify and compare the signal quality when using TDM and VoIP technologies. The presented results are obtained from the measurement done on systems which perform in the ACR network. The new phenomenon in the communication world is called the convergence of telephony and data network in IP based principles. In line with global trends the structure of communication and information systems of the Armed Forces of the Czech Republic (ACR CIS) is undergoing profound changes. However, the modernization process brings not only economical advantages, but also many technical problems. One of the main challenges seems to be quality of speech signal in VoIP transmission channel. Nowadays, there are many standardized subjective and objective sophisticated methods of speech quality evaluations. Based on the knowledge of them and ITU-T standards, we have developed specific testbed and procedures to verify and compare the signal quality when using TDM and VoIP technologies. The presented results are obtained from the measurement done on systems which perform in the ACR network. (en)
Title	Speech signal quality assessment for different VoIP technologies Speech signal quality assessment for different VoIP technologies (en)
skos:prefLabel	Speech signal quality assessment for different VoIP technologies Speech signal quality assessment for different VoIP technologies (en)
skos:notation	RIV/60162694:G43__/11:00442055!RIV12-MO0-G43_____
http://linked.open...avai/riv/aktivita	I
http://linked.open...avai/riv/aktivity	I
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Ondryhal, Vojtěch Vránová, Zuzana
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ministerstvo obrany / Univerzita obrany - Fakulta vojenských technologií Brno
http://linked.open...dnocenehoVysledku	231404
http://linked.open...ai/riv/idVysledku	RIV/60162694:G43__/11:00442055
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	VoIP; Signal voice quality; G.711; MOS; R-factor (en)
http://linked.open.../riv/klicoveSlovo	R-factor G.711 Signal voice quality MOS VoIP
http://linked.open...ontrolniKodProRIV	[4DA199A2FA94]
http://linked.open...v/mistoKonaniAkce	Brno
http://linked.open...i/riv/mistoVydani	Brno
http://linked.open...i/riv/nazevZdroje	Proceedings of the International Conference on Military Technologies 2011, ICMT’11
http://linked.open...in/vavai/riv/obor	IN
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Bešťák, Robert Ondryhal, Vojtěch Vránová, Zuzana
http://linked.open...vavai/riv/typAkce	CST - Celostátní
http://linked.open.../riv/zahajeniAkce	2011-01-01 (xsd:date)
number of pages	8 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Univerzita obrany
https://schema.org/isbn	978-80-7231-787-5
http://localhost/t...ganizacniJednotka	G43
is http://linked.open...avai/riv/vysledek of	Speech signal quality assessment for different VoIP technologies

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