This paper presents the results of quality assessment of speech and music signals transmitted via the DAB+ system. The musical signals have been evaluated in both overall quality and some particular attributes. The subjective research was provided with the use of ACR 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 kbit/s. This fact was confirmed by both subjective and objective research. The differences of results obtained for overall sound quality and particular sound attributes are discussed.

Authors: Brachmanski, Stefan; Kin, Maurycy
Affiliations: Wroclaw University of Technology, Wroclaw, Poland; Wroclaw University of Science and Technology, Wroclaw, Poland(See document for exact affiliation information.)
AES Convention: 144 (May 2018) Paper Number: 10004
Publication Date: May 14, 2018 Import into BibTeX
Subject: Posters: Audio Coding and Quality
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=19400

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