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Transmission Quality Measurements in DAB+ Broadcast System

Gilski P., Stefański J.

Metrology and Measurement Systems

2017

Vol. 24, nr 4

675--683

In the age of digital media, delivering broadcast content to customers at an acceptable level of quality is one of the most challenging tasks. The most important factor is the efficient use of available resources, including bandwidth. An appropriate way of managing the digital multiplex is essential for both the economic and technical issues. In this paper we describe transmission quality measurements in the DAB+ broadcast system. We provide a methodology for analysing parameters and factors related with the efficiency and reliability of a digital radio link. We describe a laboratory stand that can be used for transmission quality assessment on a regional and national level.

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

Gilski P., Gajewski S., Stefański J.

Journal of Telecommunications and Information Technology

2017

nr 2

26--31

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.

Digital Audio Broadcasting or Webcasting: A Network Quality Perspective

Gilski P., Stefański J.

Journal of Telecommunications and Information Technology

2016

nr 1

9--15

In recent years, many alternative technologies of delivering audio content have emerged, with different advantages and disadvantages. In this paper pros and cons of digital audio broadcasting and webcasting transmission techniques in a network quality perspective are described. A case study of user expectations with respect to currently available services is analyzed, and the perceived quality of real digital broadcasted and webcasted radio stations is examined.