Urban traffic noise is commonly simulated using prediction models that cannot determine what influence small-scale roadside structures have on the perceived qualities. This thesis investigates whether the presence of a sidewalk produces perceptible differences in simulated road-traffic noise compared to a simplified street model that is flat and omits the elevated sidewalk. A three-alternative forced […]

Die realitätsnahe Simulation der Schallausbreitung in urbanen Umgebungen ist von zentraler Bedeutung für zahlreiche Anwendungsfelder wie Virtual Reality, Lärmkartierung und Auralisation. Eine besondere Herausforderung stellt dabei die Modellierung von Beugungseffekten dar, also der Schallausbreitung um Hindernisse wie städtische Gebäude. Klassische Methoden der geometrischen Akustik wie das Raytracing erfassen diese Effekte nur unzureichend. Erweiterte Verfahren wie […]

Optoacoustic stimulation is an umbrella term describing the generation of mechanical vibrations through optical irradiation and has recently attracted attention as a potential principle for light-driven hearing-aid systems. One specific mechanism underlying this effect is thermoelastic bending, referred to in this work as thermoelastic excitation. While previous studies have mainly investigated simplified artificial membrane models […]