Quality Assessment of Musical and Speech Signals Broadcasted via Single Frequency Network DAB+

Autor:	Maurycy Kin, Stefan Brachmański
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	quality evaluation digital broadcasting single frequency network speech quality music quality Electrical engineering. Electronics. Nuclear engineering TK1-9971 Telecommunication TK5101-6720
Zdroj:	International Journal of Electronics and Telecommunications, Vol vol. 66, Iss No 1, Pp 139-144 (2020)
Druh dokumentu:	article
ISSN:	2081-8491 2300-1933
DOI:	10.24425/ijet.2020.131855
Popis:	Paper presents the results of quality assessment of speech and music signals transmitted via DAB+ system with the use of Single Frequency Network (SFN). The musical signals were evaluated in overall quality domain. The subjective research was provided with the use of Absolute Category Rating procedure according to the ITU recommendation and the results have been presented as the MOS values for various bit rates. The speech signals were additionally examined with PESQ method. The results have shown that the assumed quality of 4 MOS, for this kind of broadcasting could be achieved at 48 kb/s for speech and 64 kb/s for music. This fact was confirmed by both: subjective and objective research. The comparison between the results obtained for SFN broadcasting with three emitters with singleemitter broadcast was presented.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/32c2e00ecce544438463ee23f0b9e483 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF