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Acoustic Detection of Shape and Material Properties of simple physical Objects

Authors Czuka, M.
Year 2017
Thesis Type Master's thesis
Topic Interaction Design
Keywords musical acoustics, sound synthesis
Abstract In everyday life, it is often possible to distinguish physical objects based on the sound that is caused by tapping, knocking or scratching them. The perceptibility of object properties such as material, shape and size through this acoustic feedback has already been studied in detail. The aim of this work is to develop a method to conclude on the physical properties of an object based on its sound, like the human ear is capable of. Therefore, the first part of the Master's thesis comprises the implementation of a physical model that simulates the vibrational behavior of simple objects using modal synthesis. On the other hand, the modal parameters of an excited object will be determined from an acoustic output signal in order to conclude on the properties of the object. In the third part of the thesis the perception of synthesized sounds of excited objects is compared with that of sound recordings from excited objects in a concluding listening test.
Supervisors Weger, M., Höldrich, R.