With the increasing usage of heat pumps in residential areas, their noise emissions have become a growing concern. One potential solution is masking, where additional sounds modify the perception of […]
This study investigates how tonality influences the perceived annoyance of heat pump noise. Heat pumps produce noise mainly from fans and compressors. These noises often contain prominent tonal components that […]
Im Rahmen dieser Bachelorarbeit wurde ein Messprogramm zur Bestimmung des Schallabsorptionsgrades, basierend auf der Berechnungsmethode gemäß DIN EN ISO 10534-2 entwickelt. Das Verfahren wurde erweitert, um ohne Mikrofonkorrekturen den Messbereich […]
Im Rahmen dieser Arbeit wurde der Einfluss städtischer Bebauungskonfigurationen auf die Wahrnehmung von Reifen-Fahrbahn-Geräuschen anhand psychoakustischer Parameter analysiert. Ein besonderer Fokus lag dabei auf den Parametern Lautheit, Schärfe und Rauigkeit. […]
This work investigates the acoustic surface properties of various ground materials, aiming to improve the accuracy of acoustic models in environments where ground reflections significantly influence sound propagation. A series […]
In diesem Vortrag wird ein 6-monatiges Industriepraktikum in der Engineering Services Abteilung der HEAD acoustics GmbH vorgestellt. Während des Praktikums wurde eine Vielzahl an Projekten in den Themengebieten Active Sound […]
It is well known that children are more affected by poor acoustic conditions than adults. However, the concept of listening effort has been the focus of considerable more research in […]
Die realistische und gleichzeitig stetige Simulation der Schallausbreitung bei begrenzten Rechenressourcen stellt eine zentrale Herausforderung der geometrischen Akustik dar. Während Reflexions- und Beugungspfade durch das Image-Edge-Modell effizient modelliert werden können, […]
Im Rahmen des 18-wöchiges Industriepraktikum bei der Delphin Technology AG, einem mittelständischen Unternehmen im Bereich der industriellen Mess- und Prüftechnik, konnten praxisnahe Erfahrungen in verschiedenen Bereichen in der Entwicklung von […]
Living quality perception in urban environments is closely linked to acoustical factors. With traffic being the most dominating source of environmental noise, current research associates exposure to traffic noise with […]
Despite significant technological advancements in recent decades, users of hearing aids and hearing protection often report dissatisfaction due to an "unnatural" auditory experience. These challenges highlight gaps in our understanding […]
The propagation of sound can be effectively and accurately modelled using geometrical simulation techniques. Traditional techniques, such as ray tracing and radiosity, generate energy decay responses that characterize acoustic interactions […]
The occlusion effect occurs when the ear is completely or partially occluded, for example when wearing earphones or hearing aids. Sound transmitted through the body is amplified at lower frequencies, […]
During my internship at HEAD acoustics, I mainly worked on signal processing for physiological measurements. In hearing tests and driving simulations in virtual reality, various physiological parameters are recorded over […]
The complexity of populated real-life environments is hard to recreate in laboratory listening experiments. Using Virtual Reality (VR), this complexity can be simulated with close-to-real-life environments, while maintaining high controllability […]
Perception of sound may be created by irradiating the eardrum with appropriately modulated pulsed light. Such optical stimulation might have several benefits compared to acoustic miniature transducers, including wide-band sound […]
The optoacoustic effect describes the creation of sound by means of radiation, mainly through the effects of differing temperature inside a target material. The full physical mechanisms behind the phenomenom […]
Children spend much of their day in classrooms where understanding speech is often challenged by background noise . This thesis reanalyzes data from two studies to investigate how efficiently primary […]
Für Simulationen in der Raumakustik fehlen bislang umfassende Datensätze zu Streugraden unterschiedlicher Oberflächen und Anordnungen. Ziel dieser Arbeit ist es, eine Datenbank zu entwickeln, die Streugrade sowie die zugehörigen Metadaten […]
This presentation summarizes the work I carried out during my 18-week internship at the Hearing Aid Business Unit of Shanghai United Imaging Microelectronics Technology Co., Ltd. My tasks included various […]
Akustik-Forschung
