Stefan Liebich, M.Sc.

Wissenschaftlicher Mitarbeiter

Raum: 308b
+49 241 80-26982
+49 241 80-22254
liebich(at)iks.rwth-aachen.de

Forschungsthemen

Anwendung in Kopfhörern und Hörgeräten:

  • Aktive Störgeräuschunterdrückung
  • Aktive Okklusionsreduktion
  • Wahrnehmung der eigenen Stimme


Methoden:

 

  • Adaptive Algorithmen
  • Robust Feedback Regelung
  • Echtzeitsignalverarbeitung
  • Akustische Messtechnik
  • Systemidentifikation

Lehrtätigkeit

  • Koordination des Masterstudiengangs Communications Engineering
  • Praktikum MATLAB Advanced
  • Seminar Selected Topics in Communications Engineering

Frühere Lehrtätigkeiten

  • Praktikum Real Time Audio Processing

Office hours for coordination of Master of Communications Engineering

  • Tuesdays 10:00 - 11:30
  • Thursdays 14:00 - 16:00

Additional appointments may be arranged via mail (ce-coordinator(at)rwth-aachen.de).

Veröffentlichungen

Fabry, J., Hilkert, D., Liebich, S. and Jax, P.: Time-variant acoustic front-end measurements of active noise cancellation headphones, in Proceedings of the 23rd International Congress on Acoustics (ICA), EAA, Sep. 2019, accepted for publication


Liebich, S., Fabry, J., Jax, P. and Vary, P.: Acoustic path database for ANC in-ear headphone development, in Proceedings of the 23rd International Congress on Acoustics (ICA), EAA, Sep. 2019, accepted for publication


Fabry, J., König, F., Liebich, S. and Jax, P.: Acoustic equalization for headphones using a fixed feed-forward filter, in Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), pp. 980-984, IEEE, May. 2019, 10.1109/ICASSP.2019.8682167 ©2019 IEEE


Liebich, S., Fabry, J., Jax, P. and Vary, P.: Signal Processing Challenges for Active Noise Cancellation Headphones, in ITG-Fachtagung Sprachkommunikation, VDE Verlag GmbH , Oct. 2018, ISBN: 978-3-80074-767-2


Fabry, J., Liebich, S., Vary, P. and Jax, P.: Active Noise Control with Reduced-Complexity Kalman Filter, in Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC), pp. 166-170, IEEE, Sep. 2018, ISBN: 978-1-53868-151-0, 10.1109/IWAENC.2018.8521391 ©2018 IEEE


Fabry, J., König, F., Liebich, S. and Jax, P.: Online Secondary Path Estimation with Masked Auxiliary Noise for Active Noise Control, in Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC), pp. 331-335, IEEE, Sep. 2018, ISBN: 978-1-53868-151-0, 10.1109/IWAENC.2018.8521277 ©2018 IEEE


Liebich, S., Thieling, L., Fabry, J., Jax, P. and Vary, P.: Natural own-voice perception while wearing headphones - Active Occlusion Cancellation with Equalized Hear-Through, in Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC), IEEE, Sep. 2018


Liebich, S., Richter, J.-G., Fabry, J., Durand, C., Fels, J. and Jax, P.: Direction-of-Arrival Dependency of Active Noise Cancellation Headphones , in Proceedings of the 2018 ASME International Conference and Exposition on Noise Control, Aug. 2018, 10.1115/NCAD2018-6120


Liebich, S., Brandis, R., Fabry, J., Jax, P. and Vary, P.: Active Occlusion Cancellation with Hear-Through Equalization for Headphones, in Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), pp. 241-245, IEEE, Apr. 2018, ISBN: 978-1-53864-659-5, 10.1109/ICASSP.2018.8461834 ©2018 IEEE


Liebich, S., Jax, P. and Vary, P.: Opening the Ear Digitally – Natural perception of the own voice while using hearing devices, in 45th Erlanger Kolloquium, Feb. 2018


Liebich, S., Fabry, J., Jax, P. and Vary, P.: Time-Domain Kalman Filter for Active Noise Cancellation Headphones, in Proceedings of European Signal Processing Conference (EUSIPCO), pp. 593-597, Signal Processing Conference (EUSIPCO), 2017 25th European, Aug. 2017, ISBN: 978-1-53860-751-0, ISSN: 2076-1465, 10.23919/EUSIPCO.2017.8081276


Liebich, S., Jax, P. and Vary, P.: Active Cancellation of the Occlusion Effect in Hearing Aids by Time Invariant Robust Feedback, in ITG-Fachtagung Sprachkommunikation, VDE Verlag GmbH , Oct. 2016, ISBN: 978-3-80074-275-2


Liebich, S., Anemüller, C., Rüschen, D., Leonhardt, S., Jax, P. and Vary, P.: Active Noise Cancellation in Headphones by Digital Robust Feedback Control, in Proceedings of European Signal Processing Conference (EUSIPCO), Signal Processing Conference (EUSIPCO), 2016 24rd European, Aug. 2016, 10.1109/EUSIPCO.2016.7760567


Liebich, S., Antweiler, C., Jax, P. and Vary, P.: Excitation Signals for Online Secondary Path Estimation in Active Noise Control, in Proceedings of German Annual Conference on Acoustics (DAGA), Mar. 2016, ISBN: 978-3-93929-610-2


Liebich, S. and Brüser, C.: Deconvolution-based Physiological Signal Simplification for Periodical Parameter Estimation, in Proceedings of International Student Conference on Electrical Engineering (POSTER), May. 2014


Liebich, S., Brüser, C. and Leonhardt, S.: Deconvolution-based Physiological Signal Simplification for Periodical Parameter Estimation , in Clinician and Technology Journal, Vol. 44, No. 2, pp. 18-24, 2014, ISSN: 0301-5491