Πλοήγηση ανά Συγγραφέας "Kappis, Achilleas"

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  • Μικρογραφία εικόνας
    Τεκμήριο
    A stereo sonic interaction system triggered by impact sounds.
    (ΕΛ.ΜΕ.ΠΑ., Σχολή Μουσικής και Οπτοακουστικών Τεχνολογιών (ΣΜΟΤ), ΠΜΣ Τεχνολογίες Ήχου και Μουσικής, 2022-05-26) Kappis, Achilleas; Κάππης, Αχιλλέας
    Sonic interaction is an active research field with applications in video games, smart homes and music performance. It allows for both tangible and intangible control through a wide variety of electroacoustic transducers that lend themselves to use in such systems. Traditionally, sonic interaction systems rely on machine learning methods to recognise the gestural stimuli, and thus require a large database for the training phase which sometimes may burden the end user. In this Thesis, the problem of sonic interaction is studied from the perspective of a system that has a stereo audio capturing system, e.g. two microphones. Particularly, a system comprised of an energy detector and a Time-Difference-of-Arrival (TDoA) estimator is implemented and tested, assuming a user that produces impulsive gestures, at different locations, as stimuli. The Thesis presents the theoretical background of several energy detectors and TDoA estimators and presents simulation and real-data results obtained under different noise conditions and physical setups. A sonic interaction system with a complete signal processing pipeline is implemented to demonstrate the control of a virtual digital musical instrument with its technical aspects showing excellent results.