Research output per year
Research output per year
Personal profile
Artistic and research interests
The passion of Prof. Lokki is to understand how rooms modify sound that we hear. To pursue the encompassing understanding of room acoustics, his research team is investigating auralization, spatial sound 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 team has developed new measurement techniques, analysis methods for spatial impulse responses, and sensory evaluation methods to understand the perceptual differences between concert halls. Furthermore, Prof. Lokki has been continuing a long-term research on augmented reality audio, eyes-free user interfaces, and recently novel hearing protection devices and research on hearing in noisy and reverberant conditions.
Education/Academic qualification
Doctoral degree, Engineering and Technology, Helsinki University of Technology
Award Date: 25 Nov 2002
Master's degree, Engineering and Technology, Helsinki University of Technology
Award Date: 16 Dec 1997
Keywords
- Acoustics
- Room acoustics
- Audio
- 3D sound
- Sound in VR
- Acoustic signal processing
- Acoustic measurements
- Musical acoustics
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 3 Good Health and Well-being -
SDG 7 Affordable and Clean Energy -
SDG 8 Decent Work and Economic Growth -
SDG 9 Industry, Innovation, and Infrastructure -
SDG 11 Sustainable Cities and Communities -
SDG 12 Responsible Consumption and Production -
SDG 13 Climate Action
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Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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ABILITY TO IDENTIFY CONCERT HALL ACOUSTICS BASED ON STEREOSCOPIC 360-DEGREE VISUALS
Lokki, T., Qiu, L. & Meyer-Kahlen, N., 2026, 12th International Conference on Auditorium Acoustics 2025. Institute of Acoustics, Vol. 47. (Proceedings of the Institute of Acoustics; vol. 47).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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Active acoustic enhancement systems: A review
Cassidy, W. J., De Bortoli, G. M., Prawda, K., Coleman, P., Mason, R., Lokki, T., Schlecht, S. J. & De Sena, E., 1 Apr 2026, In: Journal of the Acoustical Society of America. 159, 4, p. 3533-3557 25 p.Research output: Contribution to journal › Review Article › peer-review
Open AccessFile9 Downloads (Pure) -
Experimental investigation of grazing-incidence sound propagation over free-standing absorbers
Yürek, A. O. & Lokki, T., 24 Apr 2026, In: Acta Acustica. 10, 16 p., 30.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile1 Citation (Web of Science)3 Downloads (Pure) -
OK5: Spatial Room Impulse Responses from 25 Spaces in our Work Environment
de las Heras, S., Meyer-Kahlen, N., Lokki, T. & Arend, J. M., 2026, Proc. of the 52nd DAGA, Dresden, Germany. Deutsche Gesellschaft für Akustik, p. 1660-1663 4 p.Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific
Open Access -
Sound absorption of foam-formed softwood fibers: Characterization, modeling, prediction
Heldmann, J., Cucharero, J. & Lokki, T., 1 Mar 2026, In: Applied Acoustics. 245, 10 p., 111200.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile1 Citation (Scopus)8 Downloads (Pure)
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BioCarbonBuilds: Turning heterogeneous side streams into sustainable interior and building solutions
Bordoloi, S. (Principal investigator), Vapaavuori, J. (Co-PI) & Lokki, T. (Co-PI)
15/03/2026 → 14/03/2028
Project: BF Co-Research
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VenueSIM: Aalto-R2B-VenueSIM
Lokki, T. (Principal investigator), Ponteva, J. (Project Member), Sainio, P. (Project Member), Surakka, J. (Project Member), Öyry, A. (Project Member) & Riionheimo, J. (Project Member)
01/01/2026 → 31/12/2026
Project: BF R2B
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Reshaping Spatial Acoustics: Embodied Sound in AR Environments
Lehtinen, S. (Principal investigator), Lokki, T. (Project Member), Kiianlinna, O. (Project Member), Arend, J. (Project Member), Meyer-Kahlen, N. (Project Member) & Kloft, A. (Project Member)
01/01/2026 → 30/09/2026
Project: Internal project
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IAA (mobility): Immersive Augmented Acoustics
Lokki, T. (Principal investigator)
01/03/2025 → 03/04/2027
Project: RCF Researcher Mobility
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MAGICS: National Infrastructure for Human in the Digital World
Sams, M. (Principal investigator), Lokki, T. (Co-PI), Merz, S. (Project Member), Korhonen, M. (Co-PI) & Pfau, T. (Project Member)
01/01/2025 → 31/12/2027
Project: RCF Research Infrastructure
Datasets
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ERC Artsoundscapes project – Listening test with auralizations of rock art site of Cuevas de la Araña (Bicorp, Spain)
López-Mochales, S. (Creator), Lokki, T. (Creator), Díaz-Andreu, M. (Creator), Escera I Micó, C. (Creator), López-Mochales, S. (Contributor) & Díaz-Andreu, M. (Contributor), CORA. Repositori de dades de Recerca, 10 Jan 2024
DOI: 10.34810/data901, https://dataverse.csuc.cat/citation?persistentId=doi:10.34810/data901
Dataset
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Demofigures for low-note experiment
Jaatinen, J. (Contributor), Pätynen, J. (Creator) & Lokki, T. (Creator), Zenodo, 16 Apr 2021
DOI: 10.5281/zenodo.4697596, https://zenodo.org/record/4697596
Dataset
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Demosignals for low-note experiment
Jaatinen, J. (Contributor), Pätynen, J. (Creator) & Lokki, T. (Contributor), Zenodo, 16 Apr 2021
DOI: 10.5281/zenodo.4697590, https://zenodo.org/record/4697590
Dataset
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Dataset of Audiovisual Speech for AR Telepresence Studies (Speech Recordings)
Meyer-Kahlen, N. (Creator), Hofmann, A. (Creator), Schlecht, S. (Creator) & Lokki, T. (Creator), Zenodo, 16 Mar 2025
DOI: 10.5281/zenodo.15034658, https://zenodo.org/records/15034732
Dataset
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Spatial Room Impulse Response Dataset: em32 along Line. Aalto University - Arni
Figueroa-Duran, A. (Creator), Meyer-Kahlen, N. (Creator), Fernandez-Grande, E. (Creator) & Lokki, T. (Creator), Zenodo, 26 Jun 2025
Dataset
Prizes
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Akatemiapalkinto Suomen Akatemia, Finland
Lokki, T. (Recipient), 2011
Prize: Award or honor granted for academic or artistic career
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ERC Starting Grant
Lokki, T. (Recipient), 2008
Prize: Award or honor granted for academic or artistic career
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Espoo Ambassador Espoon matkailu Oy, Finland
Lokki, T. (Recipient), 2013
Prize: Award or honor granted for academic or artistic career
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Fellow, Audio Engineering Society (AES)
Lokki, T. (Recipient), 2017
Prize: Award or honor granted for academic or artistic career
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Honorary member of the Acoustical Society of Finland
Lokki, T. (Recipient), 28 Oct 2019
Prize: Award or honor granted for academic or artistic career
Activities
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Akustiikkapäivät
Lokki, T. (Member)
2019Activity: Participating in or organising an event types › Chair of a conference, workshop, panel, session, tutorial or event
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Dorothea Lincke
Lokki, T. (Host)
4 Jun 2019 → 31 Dec 2019Activity: Hosting a visitor types › Hosting an academic visitor
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A Multi-Microphone Beamforming Algorithm with Adjustable Filter Characteristics
Lokki, T. (Examiner)
Apr 2018 → May 2018Activity: Academic assessments › Pre-examination of doctoral thesis or acting as opponent to doctoral students or membership of doctoral thesis committee or board
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Tohoku Universal Acoustical Communication Month
Lokki, T. (Member)
29 Oct 2018Activity: Participating in or organising an event types › Chair of a conference, workshop, panel, session, tutorial or event
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EUROPEAN CONFERENCE ON NOISE CONTROL
Lokki, T. (Member)
2018Activity: Participating in or organising an event types › Membership of an organizing committee or other positions of trust of a conference or a seminar
Press/Media
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Häiritseekö melu kotona? Näin vaimennat ääniä yllättävän helposti
10/04/2026
1 item of Media coverage
Press/Media: Media appearance
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Ajattelevatko ihmiset aina omalla äänellään?
27/02/2026
1 item of Media coverage
Press/Media: Media appearance
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Turkuun rakentuvaan musiikkitalo Fuugaan tulee huipputason akustiikka
23/10/2025
1 item of Media coverage
Press/Media: Media appearance
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Turun uuden konserttisalin akustiikkaan voi tutustua Suomen ehkä hiljaisimmassa huoneessa: tältä se kuulosti
25/11/2024
1 item of Media coverage
Press/Media: Media appearance
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Musiikkitalon akustiikkasuunnittelu herättää kiinnostusta maailmalla
13/06/2024
1 item of Media coverage
Press/Media: Media appearance