M.Ing. (Electrical and Electronic Engineering) / Acoustic reverberation is put under the spotlight. A review of the theory was conducted followed by a look into digital artificial reverberation. Measurement methodology is presented including a review of the recently published ISO standard pertaining to reverberation. Experimental testing was conducted for four acoustically different environments with one of them almost completely anechoic. The reverberation characteristic of these four environments were measured and analysed according to the relevant ISO standards. The results were then used in a further study of digital artificial reverberation applied to impulse and vocal sounds. The anechoic sounds were artificially reverberated using Cool Edit Pro software to mimic the sound obtained that had natural reverberation present. The focus was on the RT as well as the EDT of the decay slope. The artificial method of applying reverberation was evaluated using two methodologies, firstly objective methods relying on mathematics; secondly, by subjective personal evaluations using a statistical analysis of a listening test questionnaire. Both the objective and subjective results confirmed that digital artificial reverberation methods could be applied successfully to impulse sounds and vocals. The results provide a basis for the motivation of computerised methods in the studio recording process especially for rooms that are moderately anechoic.

Звукоизоляция материалов является ключевым вопросом в оценке конкурентоспособности на строительном рынке. Поэтому, для удовлетворения новым и перспективным нормам по шуму необходимы прорывные решения, основанные на глубоких научных исследованиях, создание работоспособных методов и методик оценки звукоизоляции строительных материалов и повышения коэффициента звукопоглощения. Для реализации этих целей требуются научно-исследовательские лаборатории, имеющие достаточную материально-техническую базу, удовлетворяющие требованиям стандартов. Главной целью диссертации является создание акустической реверберационной камеры для испытаний строительных изделий и конструкций на звукоизоляцию. Также диссертация посвящена проведению первичной аттестации камеры. / Soundproof materials is a key issue in assessing competitiveness in the construction market. Therefore, to meet new and promising noise norms, breakthrough solutions based on in-depth scientific research, the creation of efficient methods and techniques for assessing the sound insulation of building materials and increasing the sound absorption coefficient are necessary. To achieve these goals, research laboratories that have sufficient material and technical facilities that meet the requirements of standards are required. The main goal of the dissertation is to create an acoustic reverberation chamber for testing construction products and structures for soundproofing. Also the Thesis is devoted to the primary certification of the camera.