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Department of Information and Communications Engineering

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 have collaborated 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 course at Aalto University annually in January-April. We also arrange the 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 course for Master's and doctoral students and for the Sound and Speech Processing course (, in Finnish) for BSc students.

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

Latest publications

Gloria Dal Santo, Gian Marco De Bortoli, Karolina Prawda, Sebastian J. Schlecht, Vesa Välimäki 2025 2025 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2025 - Proceedings

Gloria Dal Santo, Karolina Prawda, Sebastian J. Schlecht, Vesa Välimäki 2025 Eurasip Journal on Audio, Speech, and Music Processing

Gloria Dal Santo, Karolina Prawda, Sebastian J. Schlecht, Vesa Välimäki 2025 Conference Record of the 58th Asilomar Conference on Signals, Systems and Computers, ACSSC 2024

Jon Fagerström 2025

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

Etienne Thuillier, Jean-Marie Lemercier, Eloi Moliner, Timo Gerkmann, Vesa Välimäki 2025 ICASSP 2025 - 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

Jose A. Belloch, Jose M. Badia, German Leon, Vesa Välimäki 2024 AES: Journal of the Audio Engineering Society

Valeria Bruschi, Stefania Cecchi, Alessandro Nicolini, Vesa Välimäki 2024 Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24)

Alistair Carson, Alec Wright, Jatin Chowdhury, Vesa Välimäki, Stefan Bilbao 2024 Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24)

Gloria Dal Santo, Benoit Alary, Karolina Prawda, Sebastian Schlecht, Vesa Välimäki 2024 Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24)
More information on our research in the Aalto research portal.
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