Department of Signal Processing and Acoustics

Audio signal processing

The Audio Signal Processing Research Group is working on wideband sound technology, which is extensively applicable for example in smart phones, music technology, gaming, sound reproduction, and noise control.
Acoustic measurements at the Aalto Acoustics Lab

Our research topics and projects are related to headset signal processing, loudspeakers, sound synthesis, effects processing algorithms, digital filters, musical instruments, acoustic measurements, subjective evaluation, and interactive audio systems. The emphasis of our research is on digital signal processing and machine learning methods which account for the properties of human hearing. We collaborate with several companies, such as Genelec and Nokia Technologies. Much of our academic research is conducted in collaboration with foreign partners, such as Aalborg University, The University of Edinburgh, and Stanford University.

This research group organizes the Audio Signal Processing course at Aalto University annually in January-April. We also arrange the Acoustics and Audio Technology Seminar every second year (February-May). Both courses are suitable for Master's and doctoral students, who have a solid background in acoustics and digital signal processing. Additionally, we are responsible for the Noise Control course for Master's and doctoral students and for the Applied Digital Signal Processing course for BSc students.

The Audio Signal Processing Research Group belongs to the Aalto Acoustics Lab. The research group is led by Professor Vesa Välimäki, IEEE Fellow, AES Fellow.  

Group members

Karolina Prawda

Karolina Prawda

Postdoctoral Researcher
T405 Dept. Signal Processing and Acoustics
Alec Wright

Alec Wright

Doctoral Researcher
T405 Dept. Signal Processing and Acoustics
Leonardo Fierro

Leonardo Fierro

Doctoral Researcher
T405 Dept. Signal Processing and Acoustics

Latest publications

Sparse Graphic Equalizer Design

Mario Antonelli, Juho Liski, Vesa Valimaki 2022 IEEE Signal Processing Letters

Multicore implementation of a multichannel parallel graphic equalizer

Jose A. Belloch, José M M. Badía, German León, Balázs Bank, Vesa Välimäki 2022 JOURNAL OF SUPERCOMPUTING

A Low-Latency Quasi-Linear-Phase Octave Graphic Equalizer

Valeria Bruschi, Vesa Välimäki, Juho Liski, Stefania Cecchi 2022 Proceedings of the 25th International Conference on Digital Audio Effects (DAFx20in22)

Linear-Phase Octave Graphic Equalizer

Valeria Bruschi, Vesa Välimäki, Juho Liski, Stefania Cecchi 2022 Journal of the Audio Engineering Society

Flutter Echo Modeling

Gloria Dal Santo, Karolina Prawda, Vesa Välimäki 2022 Proceedings of the 25th International Conference on Digital Audio Effects (DAFx20in22)

Dark Velvet Noise

Jon Fagerström, Nils Meyer-Kahlen, Sebastian J. Schlecht, Vesa Välimäki 2022 Proceedings of the 25th International Conference on Digital Audio Effects (DAFx20in22)

Augmented/Mixed Reality Audio for Hearables: Sensing, control, and rendering

Rishabh Gupta, Jianjun He, Rishabh Ranjan, Woon Seng Gan, Florian Klein, Christian Schneiderwind, Annika Neidhardt, Karlheinz Brandenburg, Vesa Valimaki 2022 IEEE Signal Processing Magazine

Loudspeaker Equalization for a Moving Listener

Joel Lindfors, Juho Liski, Vesa Välimäki 2022 Journal of the Audio Engineering Society

Immersive Personal Sound Using a Surface Nearfield Source

Jukka Linjama, Vesa Välimäki 2022 Audio Engineering Society Convention 153

Colours of Velvet Noise

Nils Meyer-Kahlen, Sebastian Schlecht, Vesa Välimäki 2022 Electronics Letters
More information on our research in the Research database.
Research database
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