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Carl von Ossietzky University
Department of Medical Physics and Acoustics
Acoustics Group
26111 Oldenburg

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Carl von Ossietzky University
Department of Medical Physics and Acoustics
Acoustics Group
Carl-von-Ossietzky-Str. 9-11
26129 Oldenburg

Audio Technology and Virtual Acoustics

Audio reproduction technology is present in many places in our daily life. The area encompasses the full chain from recording to reproduction in for example, telephony, public address systems, and music reproduction in home entertainment systems.

Our focus is on the authentic reproduction of acoustical environments and of recorded acoustic scenes. For this we are particularly interested in understanding the perceptual factors involved in the problem of an authentic reproduction. Specific themes of interest are spatial perception in rooms, sound coloration in audio reproduction systems, and the perceptual compensation for the acoustics of the reproduction environment.

Our research encompasses the study of room acoustical perception by means of psychoacoustic experiment and the development of perceptually motivated prediction models. Based on this knowledge we develop new methods for the authentic reproduction of acoustical environments and of recorded acoustic scenes.

Current Projects

Audio reproduction in non-optimal acoustical environments (Project C2, SFB 1330 - Hearing acoustics: Perceptual principles, Algorithms and Applications, HAPPAA)

Audio content is commonly reproduced over loudspeakers in reverberant and noisy environments. This often leads to non-optimal reproduction conditions. Impairments can both be with respect to the spatial and timbre fidelity of the reproduction as well as with respect to speech intelligibility. This project will focus on robust methods for compensating for the non-optimal acoustical conditions and hearing capabilities of the listeners that can be applied in multiple scenarios.

Completed Projects

Models of room acoustical perception

Subproject of the DFG Research Group SEACEN

The aim of this project is to understand how physical room acoustical parameters influence perceived room acoustical attributes.

 

Audio Playback

Subproject of the DFG Research Group Individualized Hearing Acoustics

Perceptual optimization of the sound presentation in spatially distributed loudspeakers.

 

Simulation of room acoustics

Subproject of the DFG Research Group Individualized Hearing Acoustics

In this project room acoustical simulation methods are developed that are of low computational complexity, but which provide a perceptually authentic simulation.

Researchers

  • Ali Fallah
  • Stephanie Blank
  • Sven Hilbig
  • Felix Stärz
Webg3mastr9erel (stefmntxvan.afemklow45ckgethero+@uol0pz.dkvmjge) (Changed: 2020-04-22)