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Justyna Fornalczyk


Comparison of sound synthesis methods: applications and processing costs


Opiekun pracy dyplomowej: prof. dr hab. inż. Paweł Strumiłło
Dodatkowy opiekun pracy dyplomowej: dr inż. Michał Bujacz

Praca dyplomowa ife obroniona 2010-03-12
Streszczenie pracy dyplomowej:
Sound synthesis is a process of artificial sound generation using digital or analogue technology that found its usage into many commercial and scientific applications. Synthesisers, computer sound cards, games, dedicated audio systems are only a few examples of its wide spread use. There are different methods of producing sound, such as processing existing samples or recreating sounds through various mathematical models. The goal of this thesis is to compare and examine different sound synthesis methods and develop a java application that allows for comparing their processing cost and sound creation possibilities. The initial chapters of the thesis introduce the basic information about sound, including both physical and perceptive parameters. Later sections give a theoretical overview of various methods of sound synthesis: additive synthesis, subtractive synthesis, frequency modulation, samplebased/wavetable synthesis and physical modelling. The next chapters contain a description of the developed application followed by the presentation and comments on results obtained during generation of test samples. The developed application allows for real time sound generation using five different synthesis methods, as well as for comparison of their processing costs. The conducted tests provide results on par with previously described theoretical assumptions.
Abstract:
Sound synthesis is a process of artificial sound generation using digital or analogue technology that found its usage into many commercial and scientific applications. Synthesisers, computer sound cards, games, dedicated audio systems are only a few examples of its wide spread use. There are different methods of producing sound, such as processing existing samples or recreating sounds through various mathematical models. The goal of this thesis is to compare and examine different sound synthesis methods and develop a java application that allows for comparing their processing cost and sound creation possibilities. The initial chapters of the thesis introduce the basic information about sound, including both physical and perceptive parameters. Later sections give a theoretical overview of various methods of sound synthesis: additive synthesis, subtractive synthesis, frequency modulation, samplebased/wavetable synthesis and physical modelling. The next chapters contain a description of the developed application followed by the presentation and comments on results obtained during generation of test samples. The developed application allows for real time sound generation using five different synthesis methods, as well as for comparison of their processing costs. The conducted tests provide results on par with previously described theoretical assumptions.