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Akustik-Blog

Brozova: Examining the Interrelation and Perceptual Influence of Head-Related Transfer Functions Distance Metrics

Zoom-Meeting

In this thesis, the mutual information and interaction between different objective distance metrics for HRTF comparison were analyzed and evaluated. For this purpose, tools such as correlation analysis, principal component analysis and factor analysis were used. The metrics were reduced to a smaller set of measures suitable for a listening experiment, covering both spatial and […]

Liu: Transfer path analysis in Ultrasonic Metal Welding based on experimental data and simulations

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Ultrasonic metal welding (USMW) is a kind of solid-state bonding technique for connecting similar or dissimilar metals using extremely fast frequency oscillations (ultrasonic frequencies). However, some details of vibration during the USMW are still unclear in this study field. In this work, 27 groups of measurements on the oscillation of the sonotrode and anvil vibrations […]

Chatterjee: The neuroaesthetics of architectural spaces

Zoom-Meeting

Anjan Chatterjee Penn Center of Neuraesthetics University of Pennsylvania Zoom-Meeting-ID: 967 2780 6048 Password: 747785 Direct link: https://rwth.zoom.us/j/96727806048?pwd=MjlOT1YrNk1ZUGZWTEV3ZU1BS0VGUT09 People in developed countries spend over 90% of their time in built environments. Yet, we know little about its pervasive and often hidden effects on our mental state and our brain. Despite growing interest in the neuroscience […]

Chen: Incident-angle dependent measurement of sound scattering patterns

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The acoustic scattering of surface is very important in all aspects of room acoustics like in concert halls and reverberation rooms. The acoustic propagation of sound can be calculated effectively and in high quality by geometrical simulation methods. Nevertheless, reliable scattering coefficients are needed. In this master’s thesis, the uncertainty of standardized measurement methods will […]

Hahn: Dynamic synthesis of passenger car pass-by sounds

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Progress in the field of computer-based calculation and simulation of sound fields and acoustic propagation effects enable numerous new applications for auralisation, e.g. design of cities and buildings, noise reduction and machine learning. In addition to the consideration of audible propagation effects a realistic synthesis of the source signal is essential for the generation of […]

Campos Ruiz: Pass-by vehicle sound synthesis using machine learning techniques.

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

In recent years, the use of techniques based on machine learning has increased and expanded to different areas. The increasing computing capacity and the availability of public datasets have allowed the development of these techniques, particularly deep learning, that today are considered the state of the art in topics such as pattern recognition, natural language […]

Pausch: Spatial audio reproduction for hearing aid research: System design, evaluation and application

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Hearing loss (HL) has multifaceted negative consequences for individuals of all age groups. Despite individual fitting based on clinical assessment, consequent usage of hearing aids (HAs) as a remedy is often discouraged due to unsatisfactory HA performance. Consequently, the methodological complexity in the development of HA algorithms has been increased by employing virtual acoustic environments, […]

Izquierdo: Research lines of the Array Processing Group [GPA] of the University of Valladolid: Beamforming with MEMS sensor arrays

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For more than 15 years the GPA has been working on the design and implementation of acoustic sensor arrays that by means of classical beamforming techniques allow to electronically position a beam in space. The evolution of acoustic array construction technologies will be analyzed from the analog field with conventional microphones, AD/DA converters and DSP […]

Berger: Validation of a Dual-Task Paradigm to investigate Listening Effort in Speech-Shaped Noise versus Multi-Talker Babble

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Listening effort is defined as the use of cognitive resources necessary to complete a task or follow a conversation. The words heard must be consciously received in order to understand, processed and further communicate. Communication is an essential part of everyday social life and is usually connected with background noise. The aim of this work […]

Seitz: Praxissemester bei HEAD acoustics

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

HEAD acoustics GmbH, based in Herzogenrath near Aachen, is one of the leading companies in integrated acoustic solutions as well as sound and vibration analysis. The internship was carried out in the research department Sound Perception and Assessment and focused on the area of physiological measurements for the detection of stress reactions. It involved the […]

Lachenmayr: Applied room acoustics – How to build a concert hall

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The building of a concert hall is a process of many aspects and stages - some of which have to do with acoustics. In this talk we will share insights from Müller-BBMs’ extensive experience in the topic by means of a project case study: Musikzentrum Bochum. The various acoustic planning stages within a given project […]

Witew: Measurements in room acoustics – Uncertainties and influence of the measurement position

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

Regardless of the field, measurements are essential for the validation of theories and for making well-founded decisions. A criterion for the validity and comparability of measured values is their uncertainty. The "Guide to the Expression of Uncertainty in Measurement" (GUM) provides a standardized framework for determining and interpreting measurement uncertainty. In room acoustic measurements, the […]

Wenzel: Internship with Drägerwerk

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Drägerwerk, short Dräger, is a leading company in the fields of both medical and safety technology. Based in Lübeck, the company has employees and customers around the globe and is well-known for lifesaving equipment like ventilators, anaesthesia machines and respiratory protection. The internship took place in the Research and Development department within the business unit […]

Imran: Virtual Building Acoustics – Auralization with contextual and Interactive Features

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Building acoustics auralization is used to assess the perceptual aspects of sound transmission in built environments to provide the guidelines for architectural constructions and to evaluate the noise effects on humans. These noise effects have a negative influence on daily-life activities and create disturbances in physical and metal work. These disturbances are present within the […]

Hongisto: Acoustics research in TUAS in 2022

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

First part describes the new building acoustics and psychoacoustics laboratories launched in 2020. Second part is the overview the important recent publications, which deal with, e.g., room acoustics in open-plan offices, office pods, perception of façade sound insulation, and wind turbine health effects. Third part gives an overview of current research projects, which deal with […]

Guo: Studying the effect of increased realism on auditory distraction in open-plan offices using headphone-based virtual acoustic methods

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

Open-plan offices have been popular for their significant advantages such as economical savings and flexible layout design. However, according to several questionnaire studies, noise, and in particular, irrelevant speech has been rated as the major source of annoyance in open-plan offices, which impairs concentration severely and causes productivity decline. As the Irrelevant Sound Effect (ISE) […]

Salehi: Ersatzschaltbildmodellierung von Knochenschall

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

Dieser Vortrag beschäftigt sich mit der Ersatzschaltbildmodellierung des Knochenschalls. Die Knochenleitung beschreibt die Übertragung von Schall als Schwingungen im Schädel Knochen und dem umgebenden Weichteilgewebe zum Innenohr. Es gibt fünf verschiedene Wege, die oft als wichtig für den Knochenleitung Schall angesehen werden: Schalldruck im Gehörgang, Trägheit des Mittelohrs, Trägheit der Innen Innenohrflüssigkeit, Kompression des Innenohrraums […]

Burger: Modulating Serial Recall Performance By Audiovisual Target Discrepancies

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

People perceive most events with several senses at the same time. In everyday life, these different sensations coincide in time and space to form one coherent percept. However, in online conferencing, which has become an increasingly popular mean of communication, there may be a temporal and/or spatial mismatch between visual and auditory input, e.g., due […]

Henao Rivera: Examining auditory cues for an auditory selective attention paradigm in virtual reality

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

In recent years, the use of virtual reality in research has greatly increased due to its ability to recreate complicated and realistic circumstances in a well-controlled laboratory environment. In this thesis the use of three different auditory cues in a auditory selective attention experiment in virtual reality is studied and validated, examining which of them […]

Lapparent Alvarez: Examining visual cues for an auditory selective attention paradigm in virtual reality

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

Over the last few years, virtual reality (VR) has emerged as a new technology that is allowing scientific research to investigate topics from another perspective. This is due to the possibility of creating more realistic scenarios in which all the variables are controlled. Thus, the conclusions taken from such research are more consistent since the […]