_{(credit: DLR / CC BY-NC-ND 3.0)}

The 18th DEGA Symposium 
“Acoustics of Drones and Urban Air Mobility Vehicles"
took place on 08-09 September 2025 in Berlin.

• Flyer with program (PDF)

Presentation slides of the lectures (PDF, provided so far):

• Tobias Blaschke, Sébastien Guerin, Antoine Moreau, Wolfram Köhler, Lukas Klähn:
  Numerical Assessment of Acoustic Mode Reflections in a Low-Speed Fan Test Rig (2,2 MB)
• Felix Lößle, Rainer Schmid, Anna Kostek, Daniel Ernst, Clemens Schwarz, Johannes Braukmann, Christian Wolf:
  Experimental Investigation of the Aeroacoustics of Small Rotors in Hover and Forward Flight (7,6 MB)
• Francesco Avallone, Mario Ali, Marco Picillo, Andrea Piccolo, Mattia Barbarino, Daniele Ragni, Riccardo Zamponi:
  On the Impact of Maneuvers and Turbulent Inflow on Noise Generated by Propellers (5,9 MB)
• Roberto Camussi, Alessandro Di Marco:
  Advanced Aircraft Architectures for Green Mobility:
  An Overview of Recent Research Activities at Roma Tre University (3,5 MB)
• Roberto Merino Martinez:
  Psychoacoustic Research on Advanced Air Mobility Noise (5,5 MB)
• Stephen Schade, Sébastien Guerin, Lukas Klähn, Karl-Stéphane Rossignol:
  Measurement-Informed Auralization for a Distributed Propulsion System of an Urban Air Mobility Vehicle (4,3 MB)
• Antonio J Torija Martinez:
  Development of a Psychoacoustic Modelling Framework for Drone Noise Assessment (7,7 MB)
• Carlos Ramos-Romero, Furkat Yunus, Mirjam Snellen, Antonio J Torija Martinez:
  Integration of Experimental Data and Numerical Models for Drone Noise Assessment (3,6 MB)
• Martin Blass, Franz Graf:
  Acoustic Detection and Localization of Drones using Microphone Arrays in Real-Time (4.6 MB)
• Gert Herold:
  Toward Standardized UAV Noise Assessment via Accessible Measurements and Meaningful Metrics (9,0 MB)
• Paul Maurerlehner, Korcan Kucukcoskun, Claudio Colangeli, Sebastian Falk, Maurits van den Boogaard:
  Use of AI in CAA of Drones (5,7 MB)

The password for opening the slides will be sent to all symposium participants by email
and can be requested from the DEGA office at any time.

Group photo (klick to enlarge):

Summary:
Drones and other small air mobility vehicles are emerging as key players in the future of urban transport. The transition from ground to air transportation is exciting, not least of all because it offers opportunities to reshape urban soundscapes. At the same time, integrating airborne vehicles into city environments presents significant acoustic challenges, especially with respect to propulsion noise and its impact on communities.
This two-day symposium highlighted current research and development in the acoustics of urban air mobility. Topics included psychoacoustics, noise source characterization, advanced measurement techniques, and noise mitigation strategies. By bringing together experts from diverse fields, the event underlined the importance of interdisciplinary approaches in shaping quieter and more livable urban environments.
Organized by the DEGA technical committees Aeroacoustics and Physical Acoustics, and hosted by Stefan Schoder, Thomas Geyer and Stefan Jacob, the symposium provided the possibility for knowledge exchange and in-depth discussion. Generous breaks between sessions provided space to encourage dialogue and collaboration.