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.
Band filters of an accurate third-octave cascade graphic EQ

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

Jussi Rämö

Jussi Rämö

Tutkijatohtori
Dept Signal Process and Acoust
Juho Liski

Juho Liski

Doctoral candidate
Dept Signal Process and Acoust
Benoit Alary

Benoit Alary

Doctoral candidate
Dept Signal Process and Acoust
Karolina Prawda

Karolina Prawda

Tohtorikoulutettava
Dept Signal Process and Acoust
Alec Wright

Alec Wright

Doctoral candidate
Dept Signal Process and Acoust
Leonardo Fierro

Leonardo Fierro

Doctoral candidate
Dept Signal Process and Acoust

Latest publications

Frequency-Dependent Directional Feedback Delay Network

Benoit Alary, Archontis Politis 2020 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

Third-octave and Bark graphic-equalizer design with symmetric band filters

Jussi Rämö, Juho Liski, Vesa Välimäki 2020 Applied Sciences (Switzerland)

Automatic tuning of high piano tones

Sneha Shah, Vesa Välimäki 2020 Applied Sciences (Switzerland)

22nd international conference on digital audio effects DAFx 2019 (2-6 september 2019, Birmingham, United Kingdom)

Ryan Stables, Jason Hockman, Vesa Välimäki, Federico Fontana 2020 Applied Sciences (Switzerland)

Special issue on digital audio effects

Vesa Välimäki, Federico Fontana 2020 Applied Sciences (Switzerland)

Perceptual Loss Function for Neural Modelling of Audio Systems

Alec Wright, Vesa Välimäki 2020 ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

Real-time guitar amplifier emulation with deep learning

Alec Wright, Eero Pekka Damskägg, Lauri Juvela, Vesa Välimäki 2020 Applied Sciences (Switzerland)

Assessing the anisotropic features of spatial impulse responses

Benoit Alary, Pierre Massé, Vesa Välimäki, Markus Noisternig 2019 Proceedings of the EAA Spatial Audio Signal Processing symposium

Directional feedback delay network

Benoit Alary, Archontis Politis, Sebastian J. Schlecht, Vesa Välimäki 2019 AES: Journal of the Audio Engineering Society

Deep Learning for Tube Amplifier Emulation

Eero-Pekka Damskägg, Lauri Juvela, Etienne Thuillier, Vesa Välimäki 2019 44th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019; Brighton; United Kingdom; 12-17 May 2019 : Proceedings
More information on our research in the Research database.
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