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Success story DAB in the UK
(2017)
The popularity of digital audio broadcasting in different countries can be explained mainly by means of historical development. In this work, the general technical conditions are explained and the mode of operation is explained. In addition, advantages, disadvantages and alternatives are presented. After that, the development of the digital radio in Germany and the UK is compared with the current situation in order to show how the differences have led to a different distribution and acceptance of the medium.
The computer based calculation of the sound insulation in between dwellings or the analysis of the transmission in a building are common use in practice of a building acoustic engineer. With the release of the revised DIN 4109 in July 2016 a whole new calculation model was introduced to the German users of this standard. The calculation model and its input data now need to be included into existing calculation software, such as the software SONarchitect ISO of the Spanish developers Sound of Numbers. For this cause this thesis compares the input parameter and the airborne and impact sound transmission of the DIN 4109:2016-07 and European standard EN 12354:2000. With the help of this comparison it now is possible to declare all necessary parameter and calculation procedures for the calculation of the airborne and impact sound insulation between dwellings.