ABDN Band 48
Stefan Liebich

Active Noise and Occlusion Effect Cancellation in Headphones and Hearing Aids

1. Auflage

238 Seiten

Paperback

Reihe : ABDN

Bandnummer : 48

ISBN : 978-3-958896-357-6

39,50 €

Kategorie:
Leseprobe

This thesis proposes a novel robust approach based on digital filtering to solve
the described problems. A combination of feedback and feedforward filter design
allows for either approaching personal silence or a natural perception of one’s own
voice and the acoustic environment.

The main contributions are:
• Novel design concept for ANC / OEC systems which are robust w.r.t. acoustical
variations of ear canals and earpiece fittings
• Novel structure for combined feedforward-feedback filters with adaptive
stability control
• Analysis of variability of acoustic front-end (headset) as well as electronic
back-end (digital signal processing incl. AD/DA-conversion) and implications on ANC/OEC performance
• Real-time implementation of algorithms on a PC-sized dSPACE system as
well as a mobile integrated circuit (Analog Devices ADAU 1777)
• Objective instrumental and subjective auditive evaluation of the concepts

Gewicht 250 g

Stefan Liebich

Dissertation 10/2013– 06/2020Doctorate Degree (Dr.-Ing.) in Electrical Engineering, Information Technology and Computer Engineering RWTH Aachen Exam: 18. May 2020, Summa cum laude Studies Since 04/2013 Master’s Degree (M.Sc.) in Management, Business and Economics RWTH Aachen 10/2010– 05/2013 Master’s Degree (M.Sc.) in Electrical Engineering, Information Technology and Computer Engineering RWTH Aachen Major: Systems and Automation, Summa cum laude 08/2011– 03/2012 Studies Abroad CHALMERS University of Technology, Sweden ERASMUS student exchange program 10/2007– 09/2010 Bachelor’s Degree (B.Sc.) in Electrical Engineering, Information Technology and Computer Engineering RWTH