Binaural Integrated Active Noise Control and Noise Reduction in Hearing Aids

Serizel, Romain; Moonen, Marc; Wouters, Jan; Jensen, Søren Holdt

doi:10.1109/tasl.2012.2234111

Cited by 7 publications

(2 citation statements)

References 15 publications

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“…While this pattern of benefit is already relevant for current technology (e.g., Patel et al, 2020 ; Serizel et al, 2010 , 2013 ), it will become increasingly important as more powerful algorithms such as artificial intelligence speech enhancement ( Fedorov et al, 2020 ; Healy et al, 2013 ; Wang, 2017 ) become included in more hearing devices. Such algorithms can generate unprecedented improvements to SNR, but those improvements will not be realized at the ear when a standard hearing aid is used because the noise floor will be limited by the direct path.…”

Section: Discussionmentioning

confidence: 99%

Modeling the Intelligibility Benefit of Active Noise Cancelation in Hearing Devices That Improve Signal-to-Noise Ratio

Sabin,

McElhone,

Gauger

et al. 2024

Trends in Hearing

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The extent to which active noise cancelation (ANC), when combined with hearing assistance, can improve speech intelligibility in noise is not well understood. One possible source of benefit is ANC's ability to reduce the sound level of the direct (i.e., vent-transmitted) path. This reduction lowers the “floor” imposed by the direct path, thereby allowing any increases to the signal-to-noise ratio (SNR) created in the amplified path to be “realized” at the eardrum. Here we used a modeling approach to estimate this benefit. We compared pairs of simulated hearing aids that differ only in terms of their ability to provide ANC and computed intelligibility metrics on their outputs. The difference in metric scores between simulated devices is termed the “ANC Benefit.” These simulations show that ANC Benefit increases as (1) the environmental sound level increases, (2) the ability of the hearing aid to improve SNR increases, (3) the strength of the ANC increases, and (4) the hearing loss severity decreases. The predicted size of the ANC Benefit can be substantial. For a moderate hearing loss, the model predicts improvement in intelligibility metrics of >30% when environments are moderately loud (>70 dB SPL) and devices are moderately capable of increasing SNR (by >4 dB). It appears that ANC can be a critical ingredient in hearing devices that attempt to improve SNR in loud environments. ANC will become more and more important as advanced SNR-improving algorithms (e.g., artificial intelligence speech enhancement) are included in hearing devices.

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Section: Discussionmentioning

confidence: 99%

Modeling the Intelligibility Benefit of Active Noise Cancelation in Hearing Devices That Improve Signal-to-Noise Ratio

Sabin,

McElhone,

Gauger

et al. 2024

Trends in Hearing

View full text Add to dashboard Cite

show abstract

“…In recent years, active noise systems (ANC) have been widely used in practical applications, such as car cabins [1,2], washing machines [3], railway train systems [4], headphones [5], infant incubators [6], motorcycle helmets [7], open windows [8], diesel generators [9], hearing aids [10], earmuff systems [11], power transformers [12], acoustic ducts [13], and traffic noise reduction [14], among others. Recently, the trend of the electronics market demands the design of portable devices in which the area is limited.…”

Section: Introductionmentioning

confidence: 99%

A Dual Adaptive Filter Spike-Based Hardware Architecture for Implementation of a New Active Noise Control Structure

et al. 2021

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Presently, the technology development trend of active noise control (ANC) systems is focused on implementing advanced adaptive filters in resource-constrained electronic appliances. Recently, several authors have proved that the use of two adaptive filter algorithms significantly improves the overall adaptive filter performance. However, the computational cost of these approaches is significantly increased since they use two filters simultaneously. Consequently, these filters cannot be implemented in these devices. To solve this problem, we propose a new ANC structure with switching selection based on filtered-x normalized least mean square (FxNLMS) and filtered-x sign least mean square (FxSLMS) algorithms to reduce the computational cost of the ANC system. The improvement of this factor has allowed us to introduce for the first time an advanced spike-based architecture, which can perform dual filter operations using dynamic routing, to be used in real ANC applications. The results have demonstrated that the computational cost of the proposed dual D-FxNLMS/SLMS algorithm is lower compared with previously reported solutions.

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Active soundproof earmuffs system with passive noise insulation structure compensation

Jian

2020

Applied Acoustics

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Binaural Integrated Active Noise Control and Noise Reduction in Hearing Aids

Cited by 7 publications

References 15 publications

Modeling the Intelligibility Benefit of Active Noise Cancelation in Hearing Devices That Improve Signal-to-Noise Ratio

Modeling the Intelligibility Benefit of Active Noise Cancelation in Hearing Devices That Improve Signal-to-Noise Ratio

A Dual Adaptive Filter Spike-Based Hardware Architecture for Implementation of a New Active Noise Control Structure

Active soundproof earmuffs system with passive noise insulation structure compensation

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