Applied Sampling Methodology and Analysis of Nonlinear Acoustic Properties in Solids of Revolution
Applied Sampling Methodology and Analysis of Nonlinear Acoustic Properties in Solids of Revolution

Summary/Abstract: The main focus of this work is the research of the resulting sound caused by a constant airflow through the open end of a bottle by varying the relevant parameters. For a more in depth analysis, additional experiments with test tubes are carried out. The study aims to describe and document the influence of the parameters experimentally and with the help of theoretical apparatus, some of which are: Form, shape and material of the bottle, properties of the gas, filling agent. The aforementioned variables are defined and sorted on the basis of their effect on the process. Unpredicted acoustic properties emerge when the shape of the bottle is varied significantly. New methods for physical data collection such as an AFS (Acoustic Feedback System) and SRP (Solids of Revolution Parameterization) are introduced and compared to the already existing ones, in order to better equate for the emergent acoustic properties. For a holistic evaluation various samples and relations from the well-described acoustic properties are tested against their contemporary physical description for their predictive power. Similar methods are introduced to the analysis of the previously undescribed acoustic phenomena and presented with a multi-layered approach for full comparison.

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