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  • Lipinski: Beugungsausblendung in Schallausbreitungspfaden höherer Ordnung

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    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, führt die Limitierung von Reflexions- und Beugungsordnungen häufig zu unstetigen Schallfeldern, die sich in der Auralisation als hörbare Artefakte bemerkbar machen. Diese Arbeit untersucht systematisch […]

  • Braun: Hard- und Softwareentwicklung sowie Qualitätssicherung bei der Delphin Technology AG

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    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 modenen Messsystem gesammelt werden. Ziel des Praktikums war die praxisnahe Anwendung und Vertiefung theoretischer Kenntnisse aus dem Studium sowie die Gewinnung umfassender Einblicke in die […]

  • Dreier: Virtual Acoustics – Synthesis of Traffic Sound Sources

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    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 a variety of negative effects on human health and well-being. In response to these concerns, the "Environmental Noise Directive" implemented by the European Union in […]

  • Kersten: Modeling and analysis of vibroacoustic mechanisms in hearing

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    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 of the physical mechanisms underlying hearing. A familiar example of the complex vibroacoustic phenomena involved – and a major cause of dissatisfaction with hearing technologies […]

  • Klingelnberg: Filter Design for Acoustic Surface Scattering

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    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 within specific environments. These responses can be transformed into impulse responses based on room acoustic models, facilitating a realistic sound reproduction. Filter synthesis approaches for […]

  • Trinh: Strategies for artificially creating the occlusion effect

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    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, resulting in an altered perception of one’s own voice, often described as "hollow" or "talking into a barrel". This effect is one of the main […]

  • Lingens: Deep Learning methods for detecting and removing artefacts in skin conductance measurements

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    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 time in order to quantify the influence of acoustic stimuli on the test subject instead of relying solely on the subsequent questioning of the test […]

  • Baylan: Influence of room acoustics on cognitive performance in populated audiovisual scenes

    Seminarraum 2.70 (OG), Pauwelsstr. 20, D-52074 Aachen

    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 and reproducibility. However, there is a lack of guidelines which aspects of reality have to be represented in the virtual environments to ensure ecological validity. […]

  • Denk: Mechanisms and potential for optical stimulation of the eardrum

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    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 reproduction without the necessity to close the ear canal, and low risk of feedback. Until now, the underlying opto-acoustic transduction mechanisms have not been fully […]

  • Redlin: Simulation of the optoaccoustic stimulation of an experimental tympanic membrane

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    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 are currently being studied, with the goal of using the effect among other things to the advantage of creating sound perception in humans directly at […]

  • Üçok: Listening Efficiency in Children in Classroom Noise: A Data Analysis

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    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 school children listen in classroom settings, using the metrics "Direct Listening Efficiency" , "Linear Integrated Speed–Accuracy Score" , "Balanced Integration Score" and "Inverse Efficiency Score" […]

  • Braun: Messung und Kategorisierung von akustischen Streugraden von Oberflächen

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    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 systematisch erfasst und für Forschung und Anwendung leicht zugänglich macht. Die Messungen wurden im Hallraum nach ISO 17497-1 mithilfe MATLAB-basierter Routinen der ITA-Toolbox erfasst und […]

  • Zhou: Industrial Internship at Shanghai United Imaging Microelectronics Technology

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    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 standardized measurements such as electroacoustic testing according to GB/T and IEC standards, as well as directivity, reliability, and battery voltage testing. The main focus of […]

  • Schlupek: Industrial Internship at KARL STORZ SE & Co.KG

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    The internship at KARL STORZ SE & Co. KG contributed to the optimization of a hardware system used in electrosurgical applications. The project focused on improving power transmission efficiency and system reliability through experimental measurements and circuit simulations. Various diagnostic methods, including impedance analysis, infrared thermography, and high-frequency signal evaluation, were applied to identify and […]

  • Schmitt: Custom Test Rig Development for Structure-borne Noise Minimization

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    This presentation details an internship conducted at the Kärcher Sound Lab focused on minimizing structure-borne noise. The central project involved the design, construction, and validation of a custom test rig for the dynamic characterization of viscoelastic damping elements. The resulting method allowed for measurement of frequency-dependent material properties and decoupling performance. The test rig was […]

  • Schäfer: Sprachaudiometrie mit OLSA/OLKISA bei Kindern mit Hörschädigung ab der Klasse 5: Zusammenhänge zwischen Sprachverständnis, Höranstrengung und Merkfähigkeit

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    Der Vortrag präsentiert die Ergebnisse eines Projekts zu den Zusammenhängen zwischen Sprachaudiometrie im Störgeräusch, Höranstrengung und auditiver Merkfähigkeit, an dem insgesamt n=65 hörgeschädigte Kinder und Jugendliche im Alter von 10 bis 17 Jahren teilgenommen haben. 42 der Kinder und Jugendlichen waren mit Hörgeräten versorgt, 22 mit Cochlea Implantaten, eine Person hatte keine Versorgung. Die Hörverluste […]

  • Kraxberger: Wave-based Acoustic Simulations in Large Geometries

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    In its 2025 report on environmental noise in Europe, the European Environmental Agency stated that more than 30 % of the European population (about 150 Millionen Menschen) are exposed to long-term unhealthy noise levels from transport sources, such as road traffic, railways, and air traffic. Noise exposure has a greater health impact than better-known risks […]

  • Schwachtgen: Industrial Internship as an Acoustical Engineer and Consultant with Brooks Acoustics Corporation (BAC) in Pompano Beach, FL, USA

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    This presentation will report on an acoustical engineering internship that was completed with and supervised by the American acoustical consulting and engineering company Brooks Acoustics Corporation (BAC) in Pompano Beach, Florida. Since 1992, the BAC team has contributed to over 1,100 national and international projects and actively participates in the academic, standards and professional communities […]

  • Liu: Analysis of Acoustic Reflection Factor Determination Methods (Industrial Internship)

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    There are several standardized methods for characterizing the reflection properties of materials, such as the classic reverberation chamber method and the impedance tube method. For practical application, some alternative in-situ methods have been developed in recent years. However, all these methods to determine the reflection factor can lack robustness and reliability. In this report, a […]

  • Li: Industrial Internship as an Acoustic Engineer in Goertek Inc., Shandong, China

    IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid) Kopernikusstr. 5, Aachen, Deutschland

    During the internship at GoerTek Inc., the focus was primarily on the analysis and optimization of acoustic systems for “True Wireless Stereo Earbuds”, so-called TWS devices. The main responsibilities included conducting both subjective and objective tests based on acoustic performance, evaluating products through metrics such as frequency response curves, distortion curves, and manual listening tests. […]