Department of Signal Processing and Acoustics

Communication acoustics: spatial sound and psychoacoustics

Capturing, transmission, reproduction, synthesis, and perception of sound - these are the fields that interest us in the communication acoustics team
Aalto University / Communication acoustics / photo: Ville Pulkki

Our projects are gathered around spatial sound. We have developed, and are still developing, new reproduction methods for spatial sound taking into account the time-frequency-space resolution of the human hearing. These methods are applicable to multi-channel loudspeaker layouts, headphones, and binaural hearing aids. Additionally, we are currently developing new types of non-linear beam-forming algorithms.

To enable the research of perceptually optimised spatial audio methods, we have to know more about the perceptual spatial hearing mechanisms of humans. We study these mechanisms with listening tests and model the brain mechanism devoted to spatial auditory perception. In this context, we are very interested in the perception of spatially complex sound scenes and the binaural perception of timbre.

Furthermore, we research acoustical measurement techniques for spatial sound. Here, the head-related acoustics are of vital importance in spatial hearing research, and we work on new modelling and measurement tools to understand the acoustical effects near the head and in the ear canals.

For this purpose, we must also inspect proper acoustical sources in measurements. Our current topic is the suitability of laser-induced shock waves as massless point sources. They can be applied to acoustical room measurements, and the technique is currently in active development.

European Union flag

This project has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no 240453. The starting independent research project Technologies and Psychophysics of Spatial Sound (TEPESS) funded by European Research Council runs within the Communication acoustics team.

Latest publications

Machine-learning-based estimation of reverberation time using room geometry for room effect rendering

Ricardo Falcon Perez, Georg Götz, Ville Pulkki 2019 Proceedings of the 23rd International Congress on Acoustics : integrating 4th EAA Euroregio 2019 : 9-13 September 2019 in Aachen, Germany

Blind Room Volume Estimation from Single-channel Noisy Speech

A. F. Genovese, H. Gamper, V. Pulkki, N. Raghuvanshi, I. J. Tashev 2019 44th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019; Brighton; United Kingdom; 12-17 May 2019 : Proceedings

Improving Binaural Ambisonics Decoding by Spherical Harmonics Domain Tapering and Coloration Compensation

C. Hold, H. Gamper, V. Pulkki, N. Raghuvanshi, I. J. Tashev 2019 44th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019; Brighton; United Kingdom; 12-17 May 2019 : Proceedings

Perception of vertically separated sound sources in the median plane

Taeho Kim, Henri Pöntynen 2019 2019 AES International Conference on Immersive and Interactive Audio

Applications of Spatially Localized Active-Intensity Vectors for Sound-Field Visualization

Leo McCormack, Symeon Delikaris-Manias, Archontis Politis, Despoina Pavlidi, Angelo Farina, Daniel Pinardi, Ville Pulkki 2019 Journal of the Audio Engineering Society

Sharpening of Angular Spectra Based on a Directional Re-assignment Approach for Ambisonic Sound-field Visualisation

Leo McCormack, Archontis Politis, Ville Pulkki 2019 44th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019; Brighton; United Kingdom; 12-17 May 2019 : Proceedings

SPARTA & COMPASS: Real-Time Implementations of Linear and Parametric Spatial Audio Reproduction and Processing Methods

Leo McCormack, Archontis Politis 2019 2019 AES International Conference on Immersive and Interactive Audio

Machine-learning-based estimation and rendering of scattering in virtual reality

Ville Pulkki, U. Peter Svensson 2019 Journal of the Acoustical Society of America

Spatial Perception of Sound Source Distribution in the Median Plane

Ville Pulkki, Henri Pontynen, Olli Santala 2019 Journal of the Audio Engineering Society
More information on our research in the Research database.
Research database
  • Published:
  • Updated:
Share
URL copied!