Dissertant
Fachbereich Hören
Binaural Audio and Auditory Modelling
Maschinelles Lernen

Tel. +43 1 51581-2519
Email: felix.perfler(at)oeaw.ac.at

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2022 - MSc (mit Auszeichnung) in Elektrotechnik-Toningenieur mit Schwerpunkt Signalverarbeitung an der Technischen Universität Graz (TUG) und der Universität für Musik und Darstellende Kunst Graz (KUG).

Im Rahmen meiner Masterarbeit konnte ich die Verwendung von neuronalen Netzwerken für Echo Unterdrückung untersuchen und ein solches System implementieren.

 

Derzeitige Forschung

Ich bin Teil des Projektteams von SONICOM und arbeitet an der parametrischen Modellierung der Pinna unter Verwendung von maschinellen Lernalgorithmen.

Publikationen

  • Prediction of parameters of a pinna model from synthetic geometries using a vision transformer. / Pausch, Florian; Perfler, Felix; Holighaus, Nicki et al.
    in: Journal of the Acoustical Society of America, Jahrgang 159, Nr. 6, 18.06.2026, S. 5578-5598.

    The acquisition of the human pinna geometry requires elaborate equipment for accurate results. Even then, the results are often corrupted by measurement artifacts. We introduce Mesh2PPM, a framework facilitating the generation of a personalized and artifact-free pinna mesh. Mesh2PPM predicts the parameters of a parametric pinna model based on cubic Bézier curves (BezierPPM) from a pinna mesh via a vision transformer. We evaluated Mesh2PPM with multi-view renderings of synthetic pinna geometries, providing additional depth information, varying the grids of camera views, and jittering the camera views. While added depth information had no practically relevant effect, a grid with 3 ×3 camera views facilitated the lowest overall prediction errors and best counteracted the detrimental effects of jitter. For this grid, with and without jitter, the median Pompeiu-Hausdorff distances were 1.98 mm and 1.34 mm, respectively, and the root mean square distances were 0.92 mm and 0.52 mm. A refined analysis targeting the perceptually most important pinna regions for sound localization showed that multi-view information particularly improved the prediction of BezierPPM parameters describing the cavum-conchae region. The accuracy achieved indicates the suitability of Mesh2PPM to retrieve BezierPPM parameters from pinna meshes.

  • ISAC: An Invertible and Stable Auditory Filter Bank with Customizable Kernels for ML Integration. / Haider, Daniel; Perfler, Felix; Balazs, Peter et al.
    2025 International Conference on Sampling Theory and Applications (SampTA). IEEE, 2025.
  • Mesh2PPM - Automatic Parametrization of the BezierPPM: Entire Pinna. / Pausch, Florian; Perfler, Felix; Holighaus, Nicki et al.
    AES Europe 2025 Conference Proceedings. Audio Engineering Society, 2025. 336.
  • Parametric model of the human pinna based on Bézier curves and concave deformations. / Perfler, F; Pausch, F; Pollack, K et al.
    in: Computers in Biology and Medicine, Jahrgang 188, 109817, 01.04.2025.
  • Hold Me Tight: Stable Encoder-Decoder Design for Speech Enhancement. / Haider, D; Perfler, F; Lostanlen, V et al.
    Proceedings of the Interspeech 2024. Kos, 2024. S. 5013-5017.
  • Trainable signal encoders that are robust against noise. / Balazs, P; Haider, D; Lostanlen, V et al.
    Proceedings of the Internoise 2024. Nantes, F, 2024.
  • Concepts for the evaluation of a parametric pinna model. / Perfler, F; Majdak, P; Pausch, F et al.
    Proceedings of the Forum Acusticum 2023. Turin, 2023.
  • Comparison of deep-neural-network architectures for the prediction of head-related transfer functions using a parametric pinna model. / Pausch, F; Perfler, F; Holighaus, N et al.
    Proceedings of the Forum Acusticum 2023. Turin, 2023.
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