Objective and subjective evaluation of musical and speech recordings transmitted by DAB+ system

• Autorzy: Dobrucki Andrzej , Brachmański Stefan , Kin Maurycy
• Języki publikacji: EN

Abstrakty

EN

The results of research on the sound quality of various kinds of music as well as speech signals transmitted via Digital Audio Broadcasting Plus system are presented. The results showed that bitrate values significantly influence the results of quality assessment, i.e. the overall audio quality as well as a timbre are dependent on the bitrate. The additional conclusion is that the CCR method is more accurate for sound assessment for higher bitrate values and this fact has been verified by standard deviation values of obtained results. The speech signals were additionally examined with PESQ method. The results have shown that the assumed quality of 4 MOS for speech could be achieved at 48 kbps. This fact was confirmed by both: subjective and objective research.

Słowa kluczowe

EN

sound quality; broadcasting; sound attributes

PL

jakość dźwięku; transmisja; atrybut dźwięku

• Wydawca: Poznan University of Technology. Institute of Applied Mechanics
• Czasopismo: Vibrations in Physical Systems
• Rocznik: 2019
• Tom: Vol. 30, nr 1
• Strony: art. no. 2019104
• Opis fizyczny: Bibliogr. 15 poz., wykr.

Twórcy

autor

Dobrucki Andrzej

• Wrocław University of Science and Technology, Department of Acoustics and Multimedia,Wybrzeże Wyspiańskiego 27, 50-370 Wrocław

autor

Brachmański Stefan

• Wrocław University of Science and Technology, Department of Acoustics and Multimedia,Wybrzeże Wyspiańskiego 27, 50-370 Wrocław

autor

Kin Maurycy

• Wrocław University of Science and Technology, Department of Acoustics and Multimedia,Wybrzeże Wyspiańskiego 27, 50-370 Wrocław

Bibliografia

• 1. W. Hoeg, T. Lauterbach, Digital Audio Broadcasting, Principles and Applications of Digital Audio, 2nd ed.; Wiley, England, 2003.
• 2. M. Kin, Subjective evaluation of sound quality of musical recordings transmitted via DAB+ system. Proc. of the 134th AES Convention, Rome, Italy, 2013, preprint 8874.
• 3. S. Brachmanski, M. J. Kin, Quality evaluation of sound broadcasted via DAB+ system based on a single frequency network. Proc. of the 144th AES Convention, Milano, Italy, 2018, preprint 1004.
• 4. A. Dobrucki, M. Kin, Subjective and objective evaluation of sound quality of radio programs transmitted via Digital Audio Broadcast (DAB+) system. Proc. of the ICA, Montreal, Canada, 19 (2013), doi.org/10.1121/14799170.
• 5. S. Brachmanski, Quality evaluation of speech AAC and HE-AAC coding. Joint Conference - Acoustics Ustka 2018, IEEE, 2018, 30 - 33.
• 6. ITU-T: Recom, P.800, Method for subjective determination of transmission quality. Geneva, Switzerland.
• 7. EBU Technical Recommendation R22-1999, Listening Conditions for the Assessment of Sound Programme Material. EBU Geneva, Switzerland.
• 8. S. Brachmanski, Selected problems of speech transmission quality assessment (in Polish), Oficyna Wyd. Politechniki Wrocławskiej, Wrocław 2015.
• 9. Gilski P., DAB vs DAB+ Radio Broadcasting: a Subjective Comparative Study, Archives of Acoustics, 42(4) (2017) 715 - 723.
• 10. P. Gilski, J. Stefański, Subjective and Objective Comparative Study of DAB+ Broadcast System, Archives of Acoustics, 42(1) (2017) 3 - 11.
• 11. D. Ko, W. Woszczyk, Virtual acoustics for musicians: subjective evaluation of a virtual acoustic system in performance of string quartets. J. Audio Eng. Soc., 66(9) (2018) 712 - 723.
• 12. B. De Man, K. McNally, J. D. Reiss, Perceptual evaluation and analysis of reverberation in multitrack music production. J. Audio Eng. Soc., 65(1/2) (2017) 108 - 116.
• 13. F. Zotter, M. Frank, Efficient phantom source widening. Arch. of Acoustics, 38 (2013) 27 - 37.
• 14. J. Hjortkjaer, M. Walter-Hansen, Perceptual effects of dynamic range compression in popular music recordings. J. Audio Eng. Soc., 62(1/2) (2014) 37 - 41.
• 15. F. Rumsey, Recording In The Light Of New Technology. J. Audio Eng. Soc., 63(12) (2015) 1053 - 1057.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).