Review on recent advances in hearing aids: A signal processing perspective

R Vanitha Devi, Vasundhara - Proceedings of the International Conference …, 2023‏ - Springer
Hearing loss is becoming a commonly arising problem due to noise, aging, disease, and
inheritance. Thus, usage of hearing aids have received paramount importance. In this …

[HTML][HTML] A switched algorithm for adaptive feedback cancellation using pre-filters in hearing aids

LTT Tran, SE Nordholm - Audiology research, 2021‏ - mdpi.com
Acoustic coupling between microphone and loudspeaker is a significant problem in open-fit
digital hearing aids. An open-fit compared to a close-fit hearing aid significantly lowers the …

Curvelet based robust improved sine adaptive filter for feedback cancellation in hearing aids

RV Devi - Applied Acoustics, 2023‏ - Elsevier
Acoustic feedback is a common and persistent issue in hearing aids, which can lead to
limitations in the achievable amplification and significant degradation in sound quality …

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 …

Two-microphone hearing aids using prediction error method for adaptive feedback control

LTT Tran, SE Nordholm, H Schepker… - … on Audio, Speech …, 2018‏ - ieeexplore.ieee.org
A challenge in hearing aids is adaptive feedback control which often uses an adaptive filter
to estimate the feedback path. This estimate of the feedback path usually results in a bias …

Complex-valued proportionate affine projection Versoria algorithms and their combined-step-size variants for sparse system identification under impulsive noises

F Huang, J Zhang, S Zhang - Digital Signal Processing, 2021‏ - Elsevier
In real life, many engineering problems are modeled in the complex domain (CD). This
paper proposes two complex-valued proportionate adaptive filtering (CPAF) algorithms in …

Design of a class of zero attraction based sparse adaptive feedback cancellers for assistive listening devices

SS Bhattacharjee, S Pradhan, NV George - Applied Acoustics, 2021‏ - Elsevier
Acoustic feedback is a frequently encountered problem in assistive listening devices (ALDs).
Feedback paths in ALDs are typically sparse in nature and sparsity aware adaptive …

Proportionate NLMS with Variable Step-size for Adaptive Feedback Cancellation in Hearing Aids

LTT Tran, F Albu, HT Nguyen… - 2023 Asia Pacific Signal …, 2023‏ - ieeexplore.ieee.org
It is known that the Proportionate Normalized Least-Mean-Squares (PNLMS) algorithm is an
efficient solution applicable to both Adaptive Echo Cancellation (AEC) and Adaptive …

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 …

Frequency-domain functional links for nonlinear feedback cancellation in hearing aids

A Nezamdoust, M Gogate, K Dashtipour… - … , Speech, and Signal …, 2023‏ - ieeexplore.ieee.org
The problem of feedback cancellation can be seen as a function approximation task, which
often is nonlinear in real-world hearing assistive technologies. Nonlinear methods adopted …