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Noise Analysis of Audio Signals
Kabarová, Anísa ; Mach, Václav (referee) ; Schimmel, Jiří (advisor)
The theoretical part of this work deals with the basics of acoustics, noise measurement and statistical noise level analysis. The application part focuses on the implementation of the frequency and time weighting according to the technical standard IEC 61672 and the statistical noise level analysis in MATLAB programming environment. Finally the reliability of the application is tested on real data and the results are compared to those measured by a digital Sound Level Meter.
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Hlukové emise v chovu prasat na výkrm
HAVEL, Milan
This dissertation deals with the noise emissions caused due pig fattening. The theoretical part contains a description of the economic importance of pig farming in the Czech Republic. It also describes the noise and its impact on the environment, noise effects on humans and animals, using best available technologies (BAT) to reduce it in pig farms and includes other sanitary limits. The practical part describes the structures of pig breeding, measuring instruments and the methods which are used for calculating the measurement of the noise. The obtained data are shown in the graphs and by each measurement was performed statistical analysis. In another point are the result values compared with sanitary limits.
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Noise Analysis of Audio Signals
Kabarová, Anísa ; Mach, Václav (referee) ; Schimmel, Jiří (advisor)
The theoretical part of this work deals with the basics of acoustics, noise measurement and statistical noise level analysis. The application part focuses on the implementation of the frequency and time weighting according to the technical standard IEC 61672 and the statistical noise level analysis in MATLAB programming environment. Finally the reliability of the application is tested on real data and the results are compared to those measured by a digital Sound Level Meter.
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Sources acoustic noise and bio noise in breeding pigs
VESELÝ, Vojtěch
This bachelor thesis' aim was to measure acoustic noise in swine-breeding farms with fattening pigs barn. We have measured acoustic noise and bionoise in the barn with ventilators on and off. We have chosen two swine-breeding farm - UNIAGRA Jarošovice v Čihovicích v Týně nad Vltavou in the fattening pigs barn. The acoustic and bio noise was measured for one minutes and process was registered every 5 minutes. We have measured in 3 places and at the starting, middle and the end in every barn at the same time of the day. Results were put in graphs and the progress of individual curves was then compared. For all graphs of measured values were determined minimum and maximum and the calculated equivalent sound pressure level. We have found out, that the acoustic noise and bio noise was higher in barn in Chmelná, whether whereas it is bigger barn than in Čihovice and already for the reason that there are more ventilators, when shutdown ventilators, nervous pigs.
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Noise in the surrounding farms for fattening bulls.
KRAJÍČEK, Karel
This Bachelor Thesis studies the Noise Pollution Issue in the surrounding of a Bull Farm. In Theoretical Part there are explained the basic noise concepts, its circumscription, sources, effects on Human health and basic prevention and antinoise protective agents. There is a brief introduction of the examined Farm and Livestock as well. In Practical Part there are indicated measurement procedures, their subsequent evaluation and assessment according to relevant standards and regulations.
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