Department of Information and Communications Engineering

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

Multi-shelf graphic equalizer

Sebastian J. Schlecht, Tantep Sinjanakhom, Vesa Välimäki 2025 Signal Processing

Influence of moisture on the sound absorption properties of wood-based pulp fibre foams

Jose Cucharero Moya, Muhammad Awais, Mikko Valkonen, Kari Kammiovirta, Lauri Rautkari, Tapio Lokki, Tuomas Hänninen 2024 Materials Today Sustainability

RIR2FDN: An improved room impulse response analysis and synthesis

Gloria Dal Santo, Benoit Alary, Karolina Prawda, Sebastian Schlecht, Vesa Välimäki 2024 Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24)

Active Acoustics With a Phase Cancelling Modal Reverberator

Gian De Bortoli, Karolina Prawda, Sebastian Schlecht 2024 Journal of the Audio Engineering Society

Differentiable Active Acoustics: Optimizing Stability via Gradient Descent

Gian De Bortoli, Gloria Dal Santo, Karolina Prawda, Tapio Lokki, Vesa Välimäki, Sebastian Schlecht 2024 Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24)

Blind Identification of Binaural Room Impulse Responses from Smart Glasses

Thomas Deppisch, Nils Meyer-Kahlen, Sebastia V.Amengual Gari 2024 IEEE/ACM Transactions on Audio Speech and Language Processing

Non-Exponential Reverberation Modeling Using Dark Velvet Noise

Jon Fagerström, Sebastian J. Schlecht, Vesa Välimäki 2024 AES: Journal of the Audio Engineering Society

Matching early reflections of simulated and measured RIRs by applying sound-source directivity filters

Anthony Gallien, Karolina Prawda, Sebastian J. Schlecht 2024 4th International Conference on Acoustics and Sound Reinforcement, ASR 2024

Dynamic late reverberation rendering using the common-slope model

Georg Götz, Teodors Kerimovs, Sebastian J. Schlecht, Ville Pulkki 2024 2024 6th International Conference on Audio for Games

Compression of Higher-Order Ambisonic Signals using Directional Audio Coding

Christoph Hold, Ville Pulkki, Archontis Politis, Leo McCormack 2024 IEEE/ACM Transactions on Audio Speech and Language Processing
More information on our research in the Aalto research portal.
Research portal
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