TU Berlin

Quality and Usability LabJens Ahrens

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Dr.-Ing. Jens Ahrens


Research Field:

Spatial audio capture and presentation

Research Topics:

  • Physical fundamentals and system theory of sound field synthesis
  • Modeling for head-related transfer functions
  • Psychoacoustics of synthetic sound fields
  • Object-oriented representation of spatial audio scenes
  • Interaction with spatial audio scenes
  • Beamforming
  • Orthogonal sound field decomposition


As of May 2016, Jens Ahrens is with Chalmers University of Technology.

Jens Ahrens received a Diploma in Electrical Engineering/Sound Engineering (equivalent to Master of Science) from Graz University of Technology and University of Music and Dramatic Arts Graz, Austria, in 2005 and the Doctoral Degree (Dr.-Ing.) from University of Technology Berlin, Germany, in 2010 both with distinction. From 2006 to 2011 he was member of the Audio Technology Group at the Quality and Usability Lab where he worked on the topic of sound field synthesis. From 2011 to 2013 he was a Postdoctoral Researcher at Microsoft Research in Redmond, Washington, USA. In the fall/winter terms 2015/16, he was Visiting Scholar at Stanford University. He received the literature award 2013 of the Information Technology Society (ITG at VDE). Find more information here.



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Quality and Usability Lab
Deutsche Telekom Laboratories
TU Berlin
Ernst-Reuter-Platz 7
D-10587 Berlin, Germany
Tel:  +49 30 8353 58461
Fax: +49 30 8353 58409

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Recent Advancements in Massive Multi-Channel Auralization
Zitatschlüssel ahrens2015c
Autor Ahrens, Jens and Wierstorf, Hagen
Buchtitel J. Acoust. Soc. Am. 138
Seiten 1815
Jahr 2015
ISSN 0001-4966
Workshop conference
Ort Jacksonville, FL
Adresse Melville, NY
Monat mar
Notiz electronic/online
Verlag Acoustical Society of America
Wie herausgegeben abstract
Zusammenfassung Massive multi-channel auralization approaches like Wave Field Synthesis and Higher Order Ambisonics experienced a pronounced hype in the late 2000s during which the primary research goal was maximizing the physical accuracy of the synthetic sound fields that they create. The hype eventually faded as the achievable advancements turned out to be limited due to fundamental restrictions. Though, activities are still being pursued in the domain with the focus shifted towards perception of synthetic sound fields. This talk gives an overview over current activities, which aim at understanding localization, timbre, and spatial impression in general. The results show that localization performance in synthetic sound fields is close to the performance in real sound fields. Timbre and spatial impression exhibit impairments that are directly linked to the physical limitations of the employed systems. Promising options for improvements regarding the synthesis of artificial reverberation are discussed.
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