Tytuł:

Impact of the duration of speech sequences on speech quality, Journal of Telecommunications and Information Technology, 2007, nr 4

Autor:

Pocta, Peter ; Vaculík, Martin

Temat i słowa kluczowe:

perceptual evaluation of speech quality ; packet loss ; jitter rate ; speech sequence ; intrusive measurement ; voice transmission quality of service

Opis:

This paper describes simulations of speech sequences transmission for intrusive measurement of voice transmission quality of service (VTQoS) in the environment of IP networks. The aim of the simulations was to investigate the impact of the different durations of speech sequences on speech quality from the jitter rate and packet loss point of view in IP networks. The ITU-T G.729 and ITU-T G.723.1 encoding schemes were used for the purpose of the simulations. The assessment of speech quality was realized by means of perceptual evaluation of speech quality (PESQ) algorithm. A comparison of the impact of different durations of speech sequences on speech quality and determination of the optimal duration of speech sequence for measurements of speech quality in telecommunication networks, is the aim of this paper.

Wydawca:

Instytut Łączności - Państwowy Instytut Badawczy, Warszawa

Data wydania:

2007, nr 4

Typ zasobu:

artykuł

Format:

application/pdf

DOI:

10.26636/jtit.2007.4.854

ISSN:

1509-4553

eISSN:

1899-8852

Źródło:

Journal of Telecommunications and Information Technology

Język:

ang

Prawa:

Biblioteka Naukowa Instytutu Łączności