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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230901T110000
DTEND;TZID=Europe/Berlin:20230901T113000
DTSTAMP:20260505T043123
CREATED:20230814T072331Z
LAST-MODIFIED:20230814T072331Z
UID:2702-1693566000-1693567800@blog.rwth-aachen.de
SUMMARY:Fang: Validation of free-field sound scattering simulations
DESCRIPTION:The scattering coefficient is a crucial parameter in acoustics\, as it plays a significant role in characterizing the scattering of sound waves from surfaces and materials. In this study\, we focus on the free-field simulation of the scattering coefficient. First\, we validate the scattering coefficient against analytical solutions of standard surfaces\, such as sine and rectangular shaped surfaces. Afterwards\, different approaches are investigated to minimize the edge effect. \nMelden Sie sich hier an um Einladungen zu den Kolloquium-Vorträgen per E-Mail zu erhalten.\nRegister here to receive the invitations to colloquium talks via e-mail. \nZoom-Meeting-ID: 954 4073 3814\nPasswort: 450783
URL:https://blog.rwth-aachen.de/akustik/event/fang-validation-of-free-field-sound-scattering-simulations/
LOCATION:IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid)\, Kopernikusstr. 5\, Aachen\, 52074\, Deutschland
CATEGORIES:Verteidigung Bachelorarbeit
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230901T113000
DTEND;TZID=Europe/Berlin:20230901T120000
DTSTAMP:20260505T043123
CREATED:20230821T124328Z
LAST-MODIFIED:20230821T124328Z
UID:2708-1693567800-1693569600@blog.rwth-aachen.de
SUMMARY:Vos: Overview of drone noise related topics
DESCRIPTION:There is a shift going on from manned aviation to unmanned aviation where drones\, mainly DJIs are being used for social public purposes. The drones are easily distinguishable from other sound sources due to their specific sound characteristics\, which will change the soundscape of the city. In order to understand how drones will affect society and find out if there is a problem and how the problem could be addressed\, an overview of related topics to drone noise will be presented. Topics such as the sound source\, sound propagation and its models\, and the sound perception will be lightly touched upon. \nMelden Sie sich hier an um Einladungen zu den Kolloquium-Vorträgen per E-Mail zu erhalten.\nRegister here to receive the invitations to colloquium talks via e-mail. \nZoom-Meeting-ID: 954 4073 3814\nPasswort: 450783
URL:https://blog.rwth-aachen.de/akustik/event/vos-overview-of-drone-noise-related-topics/
LOCATION:IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid)\, Kopernikusstr. 5\, Aachen\, 52074\, Deutschland
CATEGORIES:Vortrag
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230905T110000
DTEND;TZID=Europe/Berlin:20230905T113000
DTSTAMP:20260505T043123
CREATED:20230828T135243Z
LAST-MODIFIED:20230828T135243Z
UID:2730-1693911600-1693913400@blog.rwth-aachen.de
SUMMARY:Ribas Durán: A Statistical Complexity Reduction to Assess Audiovisual Perception in Urban Environments
DESCRIPTION:Many public authorities strive for creating more livable cities in future. To better understand what parameters need to be optimized to achieve this\, it is necessary to study how humans perceive urban spaces. A proposed technique to compare different environments is the Individual Vocabulary Profiling (IVP). This study investigates how people evaluate an urban environment auditorily and visually by means of IVP. The IVP method delivers descriptive attributes and individual preference ratings. It showcases the residential area “Driescher Hof” in Aachen\, which has been presented by eight video sequences in an online experiment.  Four sequences have been captured at a marketplace\, four in a park. Although geographically close\, these scenes offer a multitude of influencing factors which are expected to provide different perceptual dimensions. The thesis aims to answer the following questions: \n\nWhich environments are similarly perceived?\nAre some attributes related to one another? In that case\, which are the ones that have a similar meaning or refer to the same characteristic?\nWhich attributes explain the perception of each environment?\n\nThe exploration of the questions employs three methodologies: \n\nIndividual Vocabulary Profiling (IVP).\nMultiple Factor Analysis (MFA) to reduce the dimensionality of the raw data and to find the most relevant factors that drive human perception in urban environments.\nAgglomerative Hierarchical Clustering (AHC) in order to investigate the relationship between attributes and the urban stimuli under investigation.\n\nThe results provide an idea on which environments are similarly perceived and explained. The main attributes used that describe the spaces are ‘Loudness’\, ‘Annoying’\, ‘Broad’\, ‘Tranquil’ and ‘Urban’. Some characteristics are closely related and give a description of similar places such as ‘Tranquil’ and ‘Broad’ for the park scenes. However\, some drawbacks of the method could be observed. One park scene is defined as ‘Loud’\, contrary to the others. When analyzing the case\, it could be seen that a specific park location had a continuous drilling noise due to building work and that led to different results\, which is considered as an unusual one-time event that leads to noise in the data. \nMelden Sie sich hier an um Einladungen zu den Kolloquium-Vorträgen per E-Mail zu erhalten.\nRegister here to receive the invitations to colloquium talks via e-mail. \nZoom-Meeting-ID: 954 4073 3814\nPasswort: 450783
URL:https://blog.rwth-aachen.de/akustik/event/ribas-duran-a-statistical-complexity-reduction-to-assess-audiovisual-perception-in-urban-environments/
LOCATION:IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid)\, Kopernikusstr. 5\, Aachen\, 52074\, Deutschland
CATEGORIES:Verteidigung Bachelorarbeit
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230905T113000
DTEND;TZID=Europe/Berlin:20230905T120000
DTSTAMP:20260505T043123
CREATED:20230828T135624Z
LAST-MODIFIED:20230828T135624Z
UID:2732-1693913400-1693915200@blog.rwth-aachen.de
SUMMARY:Schröder: Parameterstudie zur Laufzeit von Virtual Acoustics
DESCRIPTION:Die Berechnungszeit eines Audioblocks ist für Echtzeit-Auralisationen von entschei- dender Bedeutung\, da sie die realisierbare Latenz nach unten begrenzt. Diese Arbeit untersucht die Auswirkung verschiedener Konfigurationsparameter auf die Laufzeit der Echtzeit-Auralisations-Software Virtual Acoustics (VA). Dazu werden theoretisch fun- dierte Tests implementiert\, die die Laufzeitänderung durch Variation von Parametern und Szenekonfigurationen messen. Die gemessenen und erwarteten Laufzeiten werden verglichen\, etwaige Abweichungen werden diskutiert und mögliche Ursachen postuliert. Abschließend wird eine Heuristik zur Laufzeitabschätzung entwickelt. \nEnglish abstract: Parameter study of Virtual Acoustics run-time \n(The talk will be given in German.)\n \nThe computation run-time of an audio block is crucial for real-time auralizations\, as it constrains the achievable latency to a lower threshold. This study examines the impact of various configuration parameters on the run-time of the real-time auralization software VA. To accomplish this\, theoretically founded tests are implemented\, which measure the run-time modifications through variations of parameter and scene configuration. The measured and anticipated run-times are compared\, deviations discussed\, and potential causes postulated. Finally\, a heuristic for runtime estimation is developed. \nMelden Sie sich hier an um Einladungen zu den Kolloquium-Vorträgen per E-Mail zu erhalten.\nRegister here to receive the invitations to colloquium talks via e-mail. \nZoom-Meeting-ID: 954 4073 3814\nPasswort: 450783
URL:https://blog.rwth-aachen.de/akustik/event/schroeder-parameterstudie-zur-laufzeit-von-virtual-acoustics/
LOCATION:IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid)\, Kopernikusstr. 5\, Aachen\, 52074\, Deutschland
CATEGORIES:Verteidigung Bachelorarbeit
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230922T110000
DTEND;TZID=Europe/Berlin:20230922T113000
DTSTAMP:20260505T043123
CREATED:20230915T103842Z
LAST-MODIFIED:20230915T103842Z
UID:2779-1695380400-1695382200@blog.rwth-aachen.de
SUMMARY:Rust: The Effect of Implicit Pitch-to-digit Associations on Performance in a Verbal Serial Recall Task
DESCRIPTION:Abstract: \nIn this thesis\, the processing of verbal and tonal stimuli in the brain was investigated. It was assessed whether implicit pitch-to-digit as sociations influence performance in a verbal serial recall task. In the experiment\, 28 participants had to remember visually presented nine digit-sequences in four different presentation conditions: when digits were only presented visually\, when matching varying tones were played with the digits\, when digits were played with random tones and when all of the digits were played with the same tone. Additionally\, in half of the trials\, nine random tones were played during the retention interval. After the experiment\, participants filled out a questionnaire and were tested for melody recognition ability. The analyses of the experiment data showed no effect of presentation condition\, but a significant effect of the tones played during the retention interval. It also showed that musical people performed better in the experiment overall. From these results\, it is concluded that an implicit association between pitches and digits exists\, but it does not facilitate recall. It is also concluded that tonal and verbal information might share processing capacity. \n– German abstract – \nDer Einfluss impliziter Ton-zu-Zahl Assoziationen auf die Leistung in der verbalen seriellen Wiedergabe \nIn dieser Arbeit wurde die Verarbeitung von verbaler und tonaler Information im Gehirn untersucht. Es wurde geprüft\, ob eine implizite Ton-zu-Zahl-Assoziation die Leistung in der verbalen seriellen Wiedergabe beeinflusst. Im Experiment waren 28 Teilnehmende aufgefordert\, sich visuell präsentierte Zahlsequenzen mit einer Länge von neun Ziffern in vier verschiedenen Präsentationskonditionen zu merken: rein visuelle Präsentation der Ziffern ohne Töne\, Präsentation mit dazu passenden Tönen\, Präsentation mit zufällig ausgewählten Tönen und Präsentation aller Ziffern mit dem gleichen Ton. Zusätzlich wurden bei der Hälfte der Testsequenzen zwischen Präsentation und Wiedergabe der Ziffern neun zufällig ausgewählte Töne abgespielt. Nach dem Experiment füllten die Teilnehmenden einen Fragebogen aus und ihre Fähigkeit Melodien wiederzuerkennen wurde getestet. Die Analyse der Daten zeigte keinen Effekt der Präsentationskondition\, aber einen signifikanten Effekt der zufälligen Töne zwischen Präsentation und Wiedergabe. Es zeigte sich auch\, dass musikalische Teilnehmende generell besser abschnitten im Experiment. Ausgehend von diesen Ergebnissen wird gefolgert\, dass eine implizite Assoziation zwischen Tönen und Ziffern besteht\, diese jedoch nicht die Leistung in der verbalen seriellen Wiedergabe beeinflusst. Es wird außerdem geschlussfolgert\, dass tonale und verbale Information möglicherweise Verarbeitungskapazitäten teilen. \nMelden Sie sich hier an um Einladungen zu den Kolloquium-Vorträgen per E-Mail zu erhalten.\nRegister here to receive the invitations to colloquium talks via e-mail. \nZoom-Meeting-ID: 954 4073 3814\nPasswort: 450783
URL:https://blog.rwth-aachen.de/akustik/event/rust-the-effect-of-implicit-pitch-to-digit-associations-on-performance-in-a-verbal-serial-recall-task/
LOCATION:IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid)\, Kopernikusstr. 5\, Aachen\, 52074\, Deutschland
CATEGORIES:Verteidigung Bachelorarbeit
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230922T113000
DTEND;TZID=Europe/Berlin:20230922T120000
DTSTAMP:20260505T043123
CREATED:20230915T104111Z
LAST-MODIFIED:20230915T104111Z
UID:2781-1695382200-1695384000@blog.rwth-aachen.de
SUMMARY:Zhang: Analysis of standard scattering coefficient measurements
DESCRIPTION:The acoustic scattering of surfaces is very important in all aspects of room acoustics like in concert halls and reverberation rooms. The sound propagation can be calculated effectively and in high quality by geometrical simulation methods. Nevertheless\, this requires reliable scattering coefficients. In this thesis\, the random-incidence scattering coefficient will be measured after ISO 17497-1 and validated with literature values. Furthermore\, improvements and guidelines of the measurement setup will be developed. \nMelden Sie sich hier an um Einladungen zu den Kolloquium-Vorträgen per E-Mail zu erhalten.\nRegister here to receive the invitations to colloquium talks via e-mail. \nZoom-Meeting-ID: 954 4073 3814\nPasswort: 450783
URL:https://blog.rwth-aachen.de/akustik/event/zhang-analysis-of-standard-scattering-coefficient-measurements/
LOCATION:IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid)\, Kopernikusstr. 5\, Aachen\, 52074\, Deutschland
CATEGORIES:Verteidigung Bachelorarbeit
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230929T110000
DTEND;TZID=Europe/Berlin:20230929T120000
DTSTAMP:20260505T043123
CREATED:20230922T130724Z
LAST-MODIFIED:20230922T130724Z
UID:2783-1695985200-1695988800@blog.rwth-aachen.de
SUMMARY:Bender: A study on voice quality and vocal fatigue of lecturers in lecture halls
DESCRIPTION:Voice disorders are more prevalent in occupational voice users\, such as lecturers in universities. This thesis examines if a relationship between room acoustic properties of lecture halls and voice quality in lecturers can be established. For this\, a study was conducted\, in which voice samples of lecturers were recorded before and after lectures in different lecture halls. The voice recordings have been analysed with the software Praat and rated by a voice therapist. The lecture halls were chosen as part of a previously conducted field study. To obtain their room acoustic parameters\, Oral-Binaural Room Impulse Response measurements have been conducted and analysed together with Room Impulse Response measurements. The state of perceived vocal fatigue of participating lecturers was measured with the German version of the Vocal Fatigue Index. \nOverall\, an increase in vocal performance fatigue could be detected over the course of lectures. When analysing the voice recordings with established parameters as the Acoustic Voice Quality Index and Smoothed Cepstral Peak Prominence\, the room acoustic deviations of the lecture halls did not seem to have an influence. The rating by a voice therapist however\, showed a tendency of worse Roughness Breathiness Hoarseness scores in a lecture hall with subpar acoustic conditions. The Vocal Fatigue Index showed higher vocal fatigue in lecturers compared to healthy individuals. \nMelden Sie sich hier an um Einladungen zu den Kolloquium-Vorträgen per E-Mail zu erhalten.\nRegister here to receive the invitations to colloquium talks via e-mail. \nZoom-Meeting-ID: 641 1166 8812 \nKenncode: 255049
URL:https://blog.rwth-aachen.de/akustik/event/bender-a-study-on-voice-quality-and-vocal-fatigue-of-lecturers-in-lecture-halls/
LOCATION:IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid)\, Kopernikusstr. 5\, Aachen\, 52074\, Deutschland
CATEGORIES:Verteidigung Masterarbeit
END:VEVENT
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