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


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