Department of Signal Processing and Acoustics

Virtual Acoustics

The Virtual Acoustics Research Group is concentrating on room acoustics – how it could be measured, simulated, and auralized as well as how humans perceive different rooms, in particular the team is world-know on the research of concert halls.
virtual acoustics research group doing measurements in a concert hall

The aim of the Virtual Acoustics group is to get an encompassing understanding how rooms modify sound that we hear. To pursue this goal, the group is investigating auralization, spatial sound capturing and reproduction, binaural technology, and novel objective and subjective evaluation methods, as well as physically-based room acoustics modeling methods. Particularly, the interest has been in concert halls, in which the group has developed new measurement techniques, analysis methods for spatial impulse responses, and sensory evaluation methods to understand the perceptual differences between concert halls. 

The current research topics are:

  • 3D-sound capturing and reproduction (both with microphone arrays and within room acoustics simulations)
  • sound in virtual/augmented reality applications
  • perception of speech in noise and reverberation
  • acoustics of chamber music halls
  • acoustics of cinemas and studios
  • novel bio-based absorption materials

The Virtual Acoustics Research Group belongs to the Aalto Acoustics Lab. The research group is led by Professor Tapio Lokki, AES Fellow.  

Latest publications

Perceptual Consequences of Direction and Level of Early Reflections in a Chamber Music Hall

Otavio Colella Gomes, Nils Meyer-Kahlen, Winfried Lachenmayr, Tapio Lokki 2022

Benchmarking of finite-difference time-domain method and fast multipole boundary element method for room acoustics

Yue Li, Julie Meyer, Tapio Lokki, Jacques Cuenca, Onur Atak, Wim Desmet 2022 Applied Acoustics

A Deep Learning Approach for Angle Specific Source Separation from Raw Ambisonics Signals

Francesc Lluís, Nils Meyer-Kahlen, Vasileios Chatziioannou, Alex Hoffmann 2022

Colours of Velvet Noise

Nils Meyer-Kahlen, Sebastian Schlecht, Vesa Välimäki 2022 Electronics Letters

Transfer-Plausibility of Binaural Rendering with Different Real-World References

Nils Meyer-Kahlen, Sebastià Amengual Garí, Thomas McKenzie, Sebastian Schlecht, Tapio Lokki 2022

Preliminary rolling noise measurements toward the design of a standard rolling noise device

Matthew Edwards, Raimundo Gonzalez Diaz, Nadia Dallaji, Luc Jaouen, Fabien Chevillotte, Nicolas Totaro 2022 Building Acoustics

Perceptual roughness of spatially assigned sparse noise for rendering reverberation

Nils Meyer-Kahlen, Sebastian Schlecht, Tapio Lokki 2021 Journal of the Acoustical Society of America

Kvartetin sisällä

Sebastian Schlecht, Terhi Paldanius, Jukka Untamala, Jussi Tuhkanen, Petra Kainulainen, Nils Meyer-Kahlen, Tapio Lokki, Gautam Vishwanath, Eero Tiainen, Petri Juntunen 2021

Movie Sound, Part 2: Preference and Attribute Ratings of Six Listening Environments

Janne Riionheimo, Tapio Lokki 2021 Journal of the Audio Engineering Society

Movie Sound, Part 1: Perceptual Differences of Six Listening Environments

Janne Riionheimo, Tapio Lokki 2021 Journal of the Audio Engineering Society
More information on our research in the Research database.
Research database
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