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Akustik-Blog

Glosauer: Evaluation of suitable parameters for describing heart rate variability with respect to auditory selective attention switches

Zoom-Meeting

Noise can cause stress, which leads to measurable physical reactions as well as it can impair intentional switching of auditory selective attention (ASA). In children, this can reduce the learning progress and thus disturb their development. The relation of measurable physical stress reactions and intentional switching of ASA is investigated in current research with the […]

Kang: Designing Soundscape in urban open public spaces: a framework and potentials

Zoom-Meeting

Jian Kang Bartlett School of Environment, Energy and Resources University College London This talk explores putting soundscape into the intentional design process, by proposing a soundscape design framework for urban open public spaces, including four key components: characteristics of each sound source, acoustic effects of the space, social/demographic aspect of the users, and other aspects […]

Engel: Determination of the soundscape cost index through soundscape data collection and the use of psychoacoustic metrics

Zoom-Meeting

Soundscape studies are showing the importance and the benefits regarding the sonic the environment in our daily lives. The soundscape paradigm shift highlights not just negative aspects, common on environmental noise studies, but also how the sonic environment can be recovering to the welfare of communities. Thinking on the valuation of settings, past studies focused […]

Uribe Corral: Vibroacoustic modelling of an ultrasonic metal welding process

Zoom-Meeting

Ultrasonic Metal Welding (USMW) is solid-state bonding process where two metal pieces are joined by the application of ultrasonic vibrations. This thesis focuses on the study of the sonotrode during a free run to understand the airborne sound field generated during the welding process. Simulation data are generated using COMSOL Multiphysics to model the physics […]

Balint: Evaluating the decay of sound

Zoom-Meeting

The absorption coefficient is a central parameter in the room acoustic design process. It can be measured in an impedance tube for normal sound incidence or in the reverberation chamber for random incidence. To guarantee a standardized test environment for reverberation chambers, the international standard ISO 354 suggests a measurement procedure to increase the diffusivity […]

Liu: Internship with Huawei Deutschland

Zoom-Meeting

Huawei is founded in 1987 in Shenzhen, China. Huawei is a leading global provider of information and communications technology (ICT) infrastructure and smart devices. Starting from the 1st of Sep in 2018, I started my internship at Huawei Technologies Germany GmbH in Dusseldorf. My internship lasts five months in total, and the activity ends on […]

Palenda: Internship with Klang Technologies

Zoom-Meeting

Aachen based, KLANG:technologies produces Hard- and Software to deliver immersive, three dimensional in-ear monitor mixes for musicians. This is achieved using binaural technologies. The focus is to give the musician a simple to use interface. During the internship, the task was to develop a tool that can automatically measure KLANG products and determine if the […]

Schwachtgen: Radial Filter Synthesis for Spherical Microphone Arrays

Zoom-Meeting

Over the past few decades, research began to focus increasingly on the use of spherical microphone arrays to study the spatial properties of acoustic wave fields. To estimate the plane wave incidence accurately, the unwanted effects generated by the spherical microphone array itself in the recorded sound pressure should be eliminated by radial filtering. To […]

Sanjaya: Examining the effect of HRTF magnitude and phase on sound coloration

Zoom-Meeting

In virtual audio, sound sources need to be modeled as realistically as possible to achieve a sense of immersion in the scene. The human auditory system performs an analysis of sound, which enables the extraction of different information to recognize and localize sound sources. There are various aspects known to result in the differences of […]

Ibe: Measurement of Structure-Borne Sound Excitation by Headphones

Zoom-Meeting

Bone conduction has a big impact on the perception of the human being. Even though headphones are used by a billion of people around the world, it was yet not analyzed if the headphones excite structure-borne sound. Structure-borne sound they could cause bone conduction or cartilage conduction and interfere with the perception of the user. […]

Chen: Internship with Huawei Deutschland

Zoom-Meeting

From October 2019 to March 2020, I worked as an intern at Device Vodafone GTM Department in Düsseldorf Huawei. Huawei Technologies Co., Ltd., whose headquarter is located in Shen Zhen China, is a multinational tech-communication company that provides telecommunications equipment and sales of consumer electronics products including smartphones. My responsibilities are mainly as a Test […]

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

Zoom-Meeting

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

Zoom-Meeting

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

Zoom-Meeting

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

Zoom-Meeting

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

Zoom-Meeting

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

Zoom-Meeting

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 […]