Signal processing challenges for active noise cancellation headphones

S Liebich, J Fabry, P Jax, P Vary - … Communication; 13th ITG …, 2018‏ - ieeexplore.ieee.org
The evolving field of headphones, particularly hearables, and current developments in low
power audio processing chips raise the interest in active approaches to address the problem …

Acoustic transparency in hearables—Perceptual sound quality evaluations

H Schepker, F Denk, B Kollmeier, S Doclo - Journal of the Audio …, 2020‏ - aes.org
In hearing devices, hear-through features that aim to provide the user with acoustic
awareness of their surroundings are becoming increasingly popular. In particular …

A one-size-fits-all earpiece with multiple microphones and drivers for hearing device research

F Denk, M Lettau, H Schepker, S Doclo… - … Conference: 2019 AES …, 2019‏ - aes.org
Earpieces that include one or more microphones and drivers are required in many research
applications related to hearing devices, however suitable devices are often not readily …

Occlusion effect cancellation in headphones and hearing devices—The sister of active noise cancellation

S Liebich, P Vary - IEEE/ACM Transactions on Audio, Speech …, 2021‏ - ieeexplore.ieee.org
The perception of one's own voice influences the acceptance of hearing devices, such as
headphones, headsets or hearing aids. When these devices fully or partially occlude the ear …

Equalization filter design for achieving acoustic transparency in a semi-open fit hearing device

F Denk, H Schepker, S Doclo… - … ; 13th ITG-Symposium, 2018‏ - ieeexplore.ieee.org
Acoustically transparent hearing devices should allow hearing equivalent to the open ear
while providing the possibility to modify the sound reaching the eardrum in a desired …

Null-steering beamformer-based feedback cancellation for multi-microphone hearing aids with incoming signal preservation

H Schepker, SE Nordholm, LTT Tran… - IEEE/ACM Transactions …, 2019‏ - ieeexplore.ieee.org
In hearing aids, acoustic feedback occurs due to the coupling between the hearing aid
loudspeaker and microphone (s). In order to reduce the acoustic feedback, adaptive filters …

[HTML][HTML] Lumped element models of sound conduction in the human ear: A systematic review

I Wils, A Geerardyn, T Putzeys, K Denis… - The Journal of the …, 2023‏ - pubs.aip.org
Lumped element models facilitate investigating the fundamental mechanisms of human ear
sound conduction. This systematic review aims to guide researchers to the optimal model for …

[HTML][HTML] Individualized prediction of the sound pressure at the eardrum for an earpiece with integrated receivers and microphones

S Vogl, M Blau - The Journal of the Acoustical Society of America, 2019‏ - pubs.aip.org
Future hearing systems and hearables will likely contain microphones and receivers in the
ear canal. In order to predict the sound pressure at the eardrum in such a scenario, a one …

Acoustic feedback suppression for multi-microphone hearing devices using a soft-constrained null-steering beamformer

H Schepker, S Nordholm… - IEEE/ACM Transactions on …, 2020‏ - ieeexplore.ieee.org
Acoustic feedback occurs in hearing aids due to the coupling between the hearing aid
loudspeaker and microphone (s). In order to reduce the acoustic feedback, adaptive filters …

Robust single-and multi-loudspeaker least-squares-based equalization for hearing devices

H Schepker, F Denk, B Kollmeier, S Doclo - EURASIP Journal on Audio …, 2022‏ - Springer
To improve the sound quality of hearing devices, equalization filters can be used to achieve
acoustic transparency, ie, listening with the device in the ear is perceptually similar to the …