@inproceedings{vonBergSchwoererPrinzetal.2023, author = {von Berg, Markus and Schw{\"o}rer, Paul and Prinz, Lukas and Steffens, Jochen}, title = {Analysis of physical and perceptual properties of room impulse responses: development of an online tool}, series = {Forum Acusticuum 2023: 10th Convention of European Acoustics Association, Turin, Italy, 11th-15th September 2023}, booktitle = {Forum Acusticuum 2023: 10th Convention of European Acoustics Association, Turin, Italy, 11th-15th September 2023}, publisher = {EAA}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-41955}, pages = {8}, year = {2023}, abstract = {Over the past decades, research in room acoustics has established several derivative measures of an impulse response, some of which are incorporated in the ISO 3382 standards. These parameters intend to represent perceptual qualities, but were developed without a consistent modeling of room acoustical perception. More recent research proposed comprehensive inventories of room acoustic perception that are purely based on evaluations by human subjects, such as the Room Acoustical Quality Index (RAQI). In this work RA-QI scores acquired for 70 room impulse responses were predicted from room acoustical parameters. Except for Reverberance, the prediction of RAQI factors performed rather poor. In most cases, the sound source had a greater impact on RAQI scores. All analyses are published in an online tool, where users can upload omnidirectional and binaural impulse responses, and instantly obtain and visualize several physical descriptors, as well as predicted RAQI scores for three different sound sources. So far, acceptable prediction accuracy is achieved for Reverberance, Strength, Irregular Decay, Clarity and Intimacy. Larger data sets of evaluated impulse responses are required to improve the model performance and enable reliable predictions of room acoustical quality. Therefore, the administration of RAQI evaluations within the website is currently being developed.}, language = {en} } @inproceedings{VonBergSchwoererPrinzetal.2023, author = {Von Berg, Markus and Schw{\"o}rer, Paul and Prinz, Lukas and Steffens, Jochen}, title = {Analysis of physical and perceptual properties of room impulse responses: development of an online tool}, series = {Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023, September 11 - 15, 2023,Torino, Italy}, booktitle = {Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023, September 11 - 15, 2023,Torino, Italy}, editor = {Astolfi, Arianna and Asdrubali, Francesco and Shtrepi, Louena}, publisher = {European Acoustics Association}, address = {Turin, Italy}, isbn = {978-88-88942-67-4}, issn = {2221-3767}, doi = {10.61782/fa.2023.0480}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-47929}, pages = {1647 -- 1654}, year = {2023}, abstract = {Over the past decades, research in room acoustics has established several derivative measures of an impulse response, some of which are incorporated in the ISO 3382 standards. These parameters intend to represent perceptual qualities, but were developed without a consistent modeling of room acoustical perception. More recent research proposed comprehensive inventories of room acoustic perception that are purely based on evaluations by human subjects, such as the Room Acoustical Quality Index (RAQI). In this work RAQI scores acquired for 70 room impulse responses were predicted from room acoustical parameters. Except for Reverberance, the prediction of RAQI factors performed rather poor. In most cases, the sound source had a greater impact on RAQI scores. All analyses are published in an online tool, where users can upload omnidirectional and binaural impulse responses, and instantly obtain and visualize several physical descriptors, as well as predicted RAQI scores for three different sound sources. So far, acceptable prediction accuracy is achieved for Reverberance, Strength, Irregular Decay, Clarity and Intimacy. Larger data sets of evaluated impulse responses are required to improve the model performance and enable reliable predictions of room acoustical quality. Therefore, the administration of RAQI evaluations within the website is currently being developed.}, subject = {Raumakustik}, language = {en} } @inproceedings{vonBergPrinzSteffens2022, author = {von Berg, Markus and Prinz, Lukas and Steffens, Jochen}, title = {Comparing individual perception of timbre and reverberance}, publisher = {International Commission for Acoustics}, address = {Gyeoungju, S{\"u}dkorea}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-38706}, pages = {5}, year = {2022}, abstract = {Room reverberation alters the spatial impression and timbre of a sound by modulating its spectral and temporal characteristics. Thus, we argue that, on a perceptual level, reverberation basically breaks down into interaural differences and spectro-temporal cues and that the separation of a perceived timbre into a sound source and a surrounding room is a purely cognitive process. To investigate the connection between the perception of reverberation cues and timbre analysis, the sensitivity for changes in reverberation was compared to timbre perception abilities. The Timbre Perception Test was used to measure the perception of the temporal envelope, spectral centroid, and spectral flux of artificial sounds. Sensitivity for changes in reverberation time was tested with a discrimination task using speech and noise with speech-alike spectral and temporal envelopes as source signals. Musical and acoustical expertise was assessed through the Goldsmiths Musical Sophistication Index and self-reports on experience with and knowledge of acoustics. There was a considerable correlation between timbre and reverberance perception ability, but timbre perception and academic experience predicted only 41\% of the variance in reverberance perception. Still, perception abilities related to similar acoustical phenomena seem to be better indicators of listening skills than self-reports on acoustical or musical expertise.}, language = {en} } @inproceedings{VersuemerBlaettermann2024, author = {Vers{\"u}mer, Siegbert and Bl{\"a}ttermann, Patrick}, title = {Predicting real indoor soundscapes based on auditory and non-auditory factors across different loudness ranges with linear and nonlinear models}, series = {INTER-NOISE and NOISE-CON Congress and Conference Proceedings, Conference Proceeding 8, 4 October 2024}, booktitle = {INTER-NOISE and NOISE-CON Congress and Conference Proceedings, Conference Proceeding 8, 4 October 2024}, publisher = {Institute of Noise Control Engineering}, doi = {10.3397/IN_2024_3386}, pages = {3882 -- 3892}, year = {2024}, subject = {Soundscape}, language = {en} } @inproceedings{TriebusDruzeticVogelGeiger2025, author = {Triebus, Charlotte and Druzetic-Vogel, Ivana and Geiger, Christian}, title = {Precious Camouflage - Artistic Research for the Creation of a Dance Piece with Humans and AI}, series = {Proceedings of the Conference on Animation and Interactive Art}, booktitle = {Proceedings of the Conference on Animation and Interactive Art}, publisher = {ACM}, address = {New York, NY, USA}, isbn = {979-8-4007-1532-7}, doi = {10.1145/3749893.3749964}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-60099}, pages = {188 -- 198}, year = {2025}, language = {en} } @inproceedings{TiatorGeigerGrimm2020, author = {Tiator, Marcel and Geiger, Christian and Grimm, Paul}, title = {Point Cloud Segmentation with Deep Reinforcement Learning}, series = {ECAI 2020: 24th European Conference on Artificial Intelligence, 29 August-8 September 2020, Santiago De Compostela, Spain - Including 10th Conference on Prestigious Applications of Artificial Intellig}, booktitle = {ECAI 2020: 24th European Conference on Artificial Intelligence, 29 August-8 September 2020, Santiago De Compostela, Spain - Including 10th Conference on Prestigious Applications of Artificial Intellig}, editor = {Dilkina, B. and Catala, A. and Giacomo, G. De}, publisher = {IOS Press}, isbn = {978-1-64368-100-9}, doi = {10.3233/FAIA200417}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-30872}, pages = {2768 -- 2775}, year = {2020}, language = {en} } @inproceedings{Soehnitz2021, author = {S{\"o}hnitz, Stefanie}, title = {Import in OPUS}, series = {OPUS 4-Workshop fand im Rahmen des 109. Deutschen Bibliothekartages in Bremen am 15. Juni 2021}, booktitle = {OPUS 4-Workshop fand im Rahmen des 109. Deutschen Bibliothekartages in Bremen am 15. Juni 2021}, publisher = {Hochschule D{\"u}sseldorf}, address = {D{\"u}sseldorf}, organization = {Hochschule D{\"u}sseldorf}, pages = {34}, year = {2021}, abstract = {Import von Daten nach OPUS 4 unter Nutzung der SWORD-Schnittstelle am Praxisbeispiel der Hochschule D{\"u}sseldorf.}, language = {de} } @inproceedings{SteffensWeinzierl2023, author = {Steffens, Jochen and Weinzierl, Stefan}, title = {Noise for dinner - Towards a comprehensive statistical model of the acoustical and overall quality of restaurants}, series = {Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023, September 11 - 15, 2023,Torino, Italy}, booktitle = {Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023, September 11 - 15, 2023,Torino, Italy}, editor = {Astolfi, Arianna and Asdrubali, Francesco and Shtrepi, Louena}, publisher = {European Acoustics Association}, address = {Turin, Italy}, isbn = {978-88-88942-67-4}, issn = {2221-3767}, doi = {10.61782/fa.2023.0483}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-47908}, pages = {3325 -- 3327}, year = {2023}, abstract = {Studies on noise in restaurants have shown a multitude of potential negative effects, for example related to mood, overall satisfaction, intended revisit, the ability to communicate and the actual behaviour in the room. In this paper, we investigated the complex interplay between room acoustics, soundscape evaluation, non-acoustical aspects of a restaurant visit and overall restaurant quality. Based on acoustical measurements and reports from 142 persons visiting 12 restaurants in Berlin, we propose a structural equation model including both acoustical and non- acoustical factors and yielding a good overall fit. The model, for instance, suggests that the A-weighted sound level negatively impacts the assessment of overall restaurant quality, while the effect of soundscape pleasantness on overall restaurant quality is mediated by the restaurant's perceived atmosphere. Moreover, the reverberation time was found to be effective predominantly through its effect on sound strength, which leads patrons to increasingly raise their speech level to ensure intelligibility. These results thus emphasize the need to design actively the restaurant's acoustical atmosphere beyond pure loudness reduction which involves a specific trade-off between comfort and liveliness, depending on the desired character of the place.}, subject = {European Acoustics Association}, language = {en} } @inproceedings{Schleiermann2025, author = {Schleiermann, Edgar}, title = {Einfluss von Open Source Web Frameworks auf die Nachhaltigkeit von Webseiten}, series = {SKILL 2023 Studierendenkonferenz Informatik, 27.-28. September 2025, Berlin}, booktitle = {SKILL 2023 Studierendenkonferenz Informatik, 27.-28. September 2025, Berlin}, editor = {Riechert, Thomas and Plecher, David and Porada, Ludger}, publisher = {Gesellschaft f{\"u}r Informatik e.V.}, address = {Bonn}, doi = {10.18420/SKILL2023_01}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-58384}, pages = {13 -- 25}, year = {2025}, abstract = {In den letzten Jahren wurden Webseiten immer umfangreicher und der Einsatz von Open Source Web Frameworks ist mittlerweile ein integraler Bestandteil bei der Umsetzung von Webanwendungen. Welchen Einfluss diese Frameworks auf die Nachhaltigkeit von Webanwendungen haben, ist noch nicht ausreichend gekl{\"a}rt. Deshalb wird die Architektur einiger Open Source Web Frameworks untersucht und deren Auswirkungen auf den Energieverbrauch von Webanwendungen betrachtet. Mit einer empirischen Studie werden verschiedene Anwendungen umgesetzt und der Energieverbrauch ermittelt. Im Rahmen von Interviews werden die Ergebnisse der Studie in Unternehmen pr{\"a}sentiert und dabei untersucht, welche Bedeutung die Ergebnisse f{\"u}r die Webentwicklung haben. Es zeigt sich, dass sich die Auswahl eines Frameworks auf den Energieverbrauch auswirkt. Unternehmen in der Webentwicklung ber{\"u}cksichtigen diesen Aspekt aktuell noch nicht in ihren Projekten.}, subject = {Nachhaltigkeit}, language = {de} } @inproceedings{RakowKlessHasleretal.2023, author = {Rakow, Thomas C. and Kless, Andr{\´e} and Hasler, Charlotte and Knolle, Harm and Faeskorn-Woyke, Heide and Saatz, Inga Marina and Lambert, Jens and Focken, Mareike}, title = {Developing OERs for Teaching Database Systems: A Two-Year Effort of Four Universities of Applied Sciences}, series = {GI Edition Proceedings Band 331 "BTW 2023" : 6. - 10. M{\"a}rz 2023 in Dreden}, booktitle = {GI Edition Proceedings Band 331 "BTW 2023" : 6. - 10. M{\"a}rz 2023 in Dreden}, editor = {K{\"o}nig-Ries, Birgitta and Scherzinger, Stefanie and Lehner, Wolfgang and Vossen, Gottfried}, publisher = {K{\"o}llen}, address = {Bonn}, isbn = {9783885797258}, doi = {10.18420/BTW2023-31}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-40611}, year = {2023}, language = {en} }