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DTSTART;TZID=Europe/Berlin:20210903T110000
DTEND;TZID=Europe/Berlin:20210903T120000
DTSTAMP:20260506T002112
CREATED:20210705T152953Z
LAST-MODIFIED:20210827T100456Z
UID:1595-1630666800-1630670400@blog.rwth-aachen.de
SUMMARY:Brozova: Examining the Interrelation and Perceptual Influence of Head-Related Transfer Functions Distance Metrics
DESCRIPTION: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 spectral aspects.\nMoreover\, a listening experiment was designed to examine just noticeable differences (JNDs) and to gain first insights into various perceptual attributes (e.g. changes in sound coloration and spatial aspects) and the possibility of using the respective distance metrics for prediction. \nMelden Sie sich hier an um die Einladung zu dem Vortrag per E-Mail zu erhalten.\nRegister here to receive the invitation to this talk via E-Mail. \nZoom-Meeting-ID: 960 3754 6654\nPasswort: 280469
URL:https://blog.rwth-aachen.de/akustik/event/brozova-perception-head-related-transfer/
LOCATION:Zoom-Meeting
CATEGORIES:Verteidigung Masterarbeit
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DTSTART;TZID=Europe/Berlin:20210924T110000
DTEND;TZID=Europe/Berlin:20210924T120000
DTSTAMP:20260506T002112
CREATED:20210827T120759Z
LAST-MODIFIED:20210918T151056Z
UID:1636-1632481200-1632484800@blog.rwth-aachen.de
SUMMARY:Liu: Transfer path analysis in Ultrasonic Metal Welding based on experimental data and simulations
DESCRIPTION: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 along the direction of USMW between two copper layer sheets have been recorded by LaserDoppler vibrometers (LDV). Based on the recorded data sets\, the ratio and phase shift between the anvil and sonotrode around 20kHz have been analyzed. In the meanwhile\, the mass-spring-damper model has been fitted into different stages of USMW according to the empirical phase model from Balz’s dissertation [1] based on the 27 groups of measurement data sets. Finally\, the relevant Spring coefficient and damping coefficients have been studied at different welding states over the welding time. \nMelden Sie sich hier an um die Einladung zu dem Vortrag per E-Mail zu erhalten.\nRegister here to receive the invitation to this talk via E-Mail. \nZoom-Meeting-ID: 996 2902 2585\nPasswort: 251438
URL:https://blog.rwth-aachen.de/akustik/event/liu-transfer-path-analysis-in-ultrasonic-metal-welding-based-on-experimental-data-and-simulations/
LOCATION:Zoom-Meeting
CATEGORIES:Verteidigung Masterarbeit
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