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31	Music Preferences, Perceived Loudness, and Preferred Listening Levels : An investigation of sound level preferences for live sound reinforcement in Swedish free churches Ericson, Petrus January 2022 (has links) Sound levels in live sound reinforcement have long been a topic for debate in live concerts, but the subject is also important elsewhere. Swedish Christian free churches have also struggled for many years to optimize how sound reinforcement can serve the community. There are many different factors affecting the sound level preferences in live sound reinforcement environments. Among them are perception of loudness, musical preferences, hearing impairments and tolerances. This bachelor thesis investigated if musical preference affected the perceived loudness and/or the preferred listening level through a set of listening tests and qualitative surveys. It was investigated in one Swedish free church congregation, from which 16 subjects participated. The listening test was conducted with three parts: loudness matching stimuli to a pink noise, setting the preferred listening level of the stimuli and rating the preference of the stimuli. Subsequently, a survey after a service was conducted to investigate different factors affecting the experience. No connection between music preference and loudness perception or preferred level wasfound. However, the study did produce multiple findings that reveal factors affecting the sound level preferences in the chosen congregation, such as hearing impairments, expectations on the role of sound in worship services, and the balance of instruments. These findings revealed differences in opinion regarding the mix philosophy used in services, and the impact of these approaches on members of the congregation. Altogether, the findings point to recommendations and considerations for live sound engineers working in worship environments. Sound levels live sound reinforcement loudness music preference hearing impairments sound level tolerance church congregation mix philosophy sound balance role of sound worship worship music Ljudvolym ljudstyrka musikpreferens hörselskada balans kyrka lovsång kyrkomusik församling Pingstkyrkan Media Engineering Mediateknik Media and Communications Medie- och kommunikationsvetenskap
32	SNIŽOVÁNÍ HODNOTY STAVENIŠTNÍHO HLUKU POMOCÍ MODELOVÁNÍ VÝROBNÍHO PROSTORU STAVBY A ÚPRAV TECHNOLOGICKÝCH POSTUPŮ PŘI VÝSTAVBĚ / REDUCING THE VALUE OF CONSTRUCTION NOISE BY MODELING THE PRODUCTION AREA OF CONSTRUCTION SITE AND BY ADJUSTING THE TECHNOLOGICAL PROCEDURES DURING CONSTRUCTION Kantová, Radka Unknown Date (has links) This doctoral thesis focuses on noise generated during construction. It defines the legislative and physical aspects of this topic. It determines heavy machinery as noise source and categorizes them by their usage in construction technologies. It collects source data of the machinery noises which can be further used in prognostic models. It analyses the level of construction noise which can impact the nearby residential areas and offers methodology for modelling and designing the possible arrangements for the noise reduction. It defines partial effects of the construction site which are significant for the noise spreading. It establishes their role in the value of acoustic pressure level of the noise affecting the façade of the considered building. With the data collection and with case study verification it offers a prepared work tool which can be easily used to predict noise levels on construction sites and can be applied in the early constructions preparations. The structure of this thesis is planned for possible usage as university textbook or study support.

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Music Preferences, Perceived Loudness, and Preferred Listening Levels : An investigation of sound level preferences for live sound reinforcement in Swedish free churches