Quality Aspects in Digital Broadcasting and Webcasting Systems: Bitrate versus Loudness

• Autorzy: Gilski P. , Gajewski S. , Stefański J.

Identyfikatory

DOI

10.26636/jtit.2017.114217

• Języki publikacji: EN

Abstrakty

EN

In this paper the quality aspects of bitrate and loudness in digital broadcasting and webcasting systems are examined. The authors discuss a survey concerning user preferences related with processing and managing audio content. The coding efficiency of a popular audio format is analyzed in the context of storing media. An objective study on a representative group of signal samples, as well as a subjective study of the perceived quality of real-time broadcasted and webcasted radio programs are performed.

Słowa kluczowe

EN

broadcast technology; mobile communication; quality of experience; quality of service; webcast technology; wireless communication

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2017
• Tom: nr 2
• Strony: 26--31
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Gilski P.

• Faculty of Electronics, Telecommunications and Informatics, Department of Radio Communication Systems and Networks, Gdańsk University of Technology, Gabriela Narutowicza st 11/12, 80-233 Gdańsk, Poland

autor

Gajewski S.

• Faculty of Electronics, Telecommunications and Informatics, Department of Radio Communication Systems and Networks, Gdańsk University of Technology, Gabriela Narutowicza st 11/12, 80-233 Gdańsk, Poland

autor

Stefański J.

• Faculty of Electronics, Telecommunications and Informatics, Department of Radio Communication Systems and Networks, Gdańsk University of Technology, Gabriela Narutowicza st 11/12, 80-233 Gdańsk, Poland

Bibliografia

• [1] P. Gilski and R. J. Katulski, “Electronic media in the life of a modern man”, Elektronika – konstrukcje, technologie, zastosowania, vol. 3, pp. 7–11, 2016 (in Polish).
• [2] P. Gilski and J. Stefański, “Digital audio broadcasting or webcasting: a network quality perspective”, J. of Telecommun. and Inform. Technol., no. 1, pp. 9–15, 2016.
• [3] “Methods for the subjective assessment of small impairments in audio systems including multichannel sound systems”, ITU Recom. BS.1116-1, 1997.
• [4] “Method for the subjective assessment of intermediate quality level of coding systems”, ITU Recom. BS.1534-1, 2003.
• [5] S. Möller et al., “Speech quality estimation: models and trends”, IEEE Sig. Proces. Mag., vol. 28, pp. 18–28, 2011.
• [6] “Digital Audio Broadcasting (DAB); Transport of Advanced Audio Coding (AAC) audio”, ETSI Technical Specification 102 563, 2010.
• [7] K. Brandenburg, “MP3 and AAC explained”, in Proc. AES 17th Int. Conf. on High Quality Audio Coding, Florence, Italy, 1999, pp. 1–12.
• [8] “Sound Quality Assessment Material recordings for subjective tests (SQUAM CD)”, EBU Technical Document 3253, 2008.
• [9] A. Hines et al., “ViSQOLAudio: An objective audio quality metric for low bitrate codecs”, J. of the Acoust. Soc. of America, vol. 137, pp. 449–455, 2015.
• [10] A. Hines et al., “Perceived audio quality for streaming stereo music”, in Proc. 22nd ACM Int. Conf. on Multimedia MM’14, Orlando, FL, USA, 2014, pp. 1173–1176.
• [11] “General methods for the subjective assessment of sound quality”, ITU Recom. BS.1284, 2003. [12] E. Vickers, “The loudness war: do louder, hypercompressed recordings sell better?”, J. of the Audio Engin. Soc., vol. 59, no. 5, pp. 346–351, 2011.
• [12] E. Vickers, “The loudness war: do louder, hypercompressed recordings sell better?”, J. of the Audio Engin. Soc., vol. 59, no. 5, pp. 346–351, 2011.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).