Uni- and bilateral spectral loudness summation and binaural loudness summation with loudness matching and categorical loudness scaling

Beurden, Maarten van; Boymans, Monique; Geleuken, Mirjam van; Oetting, Dirk; Kollmeier, Birger; Dreschler, Wouter A.

doi:10.1080/14992027.2020.1832263

Cited by 5 publications

(5 citation statements)

References 44 publications

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“…The RFR and GLM were applied to Bisgaard standard audiograms. These standard audiograms are well established and widely used for audiological investigations (e.g., Tu et al, 2021 ; van Beurden et al, 2021 ). They are based on a large clinical data base.…”

Section: Methodsmentioning

confidence: 99%

Age-Related Decline of Speech Perception

Hoppe

Hocke²,

Iro

2022

Front. Aging Neurosci.

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Hearing loss is one of the most common disorders worldwide. It affects communicative abilities in all age groups. However, it is well known that elderly people suffer more frequently from hearing loss. Two different model approaches were employed: A generalised linear model and a random forest regression model were used to quantify the relationship between pure-tone hearing loss, age, and speech perception. Both models were applied to a large clinical data set of 19,801 ears, covering all degrees of hearing loss. They allow the estimation of age-related decline in speech recognition for different types of audiograms. Our results show that speech scores depend on the specific type of hearing loss and life decade. We found age effects for all degrees of hearing loss. A deterioration in speech recognition of up to 25 percentage points across the whole life span was observed for constant pure-tone thresholds. The largest decrease was 10 percentage points per life decade. This age-related decline in speech recognition cannot be explained by elevated hearing thresholds as measured by pure-tone audiometry.

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Section: Methodsmentioning

confidence: 99%

Age-Related Decline of Speech Perception

Hoppe

Hocke²,

Iro

2022

Front. Aging Neurosci.

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“…Regarding binaural loudness perception and fitting in hearing impaired (HI) listeners with conventional acoustic hearing aids, recent studies (Oetting et al, 2016;van Beurden et al, 2018van Beurden et al, , 2020 found a large variability of binaural broadband loudness perception in HI listeners after restoring the individual loudness perception of monaural narrowband signals due to frequency-dependent amplification. Ewert and Oetting (2018) introduced a loudness-based measurement procedure using a combination of narrowband sounds at equal loudness, enabling a direct comparison of loudness perception in NH and aided HI listeners.…”

Section: Introductionmentioning

confidence: 99%

Spectral and binaural loudness summation of equally loud narrowband signals in single-sided-deafness and bilateral cochlear implant users

Hartog

Kollmeier

et al. 2022

Front. Neurosci.

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Recent studies on loudness perception of binaural broadband signals in hearing impaired listeners found large individual differences, suggesting the use of such signals in hearing aid fitting. Likewise, clinical cochlear implant (CI) fitting with narrowband/single-electrode signals might cause suboptimal loudness perception in bilateral and bimodal CI listeners. Here spectral and binaural loudness summation in normal hearing (NH) listeners, bilateral CI (biCI) users, and unilateral CI (uCI) users with normal hearing in the unaided ear was investigated to assess the relevance of binaural/bilateral fitting in CI users. To compare the three groups, categorical loudness scaling was performed for an equal categorical loudness noise (ECLN) consisting of the sum of six spectrally separated third-octave noises at equal loudness. The acoustical ECLN procedure was adapted to an equivalent procedure in the electrical domain using direct stimulation. To ensure the same broadband loudness in binaural measurements with simultaneous electrical and acoustical stimulation, a modified binaural ECLN was introduced and cross validated with self-adjusted loudness in a loudness balancing experiment. Results showed a higher (spectral) loudness summation of the six equally loud narrowband signals in the ECLN in CI compared to NH. Binaural loudness summation was found for all three listener groups (NH, uCI, and biCI). No increased binaural loudness summation could be found for the current uCI and biCI listeners compared to the NH group. In uCI loudness balancing between narrowband signals and single electrodes did not automatically result in a balanced loudness perception across ears, emphasizing the importance of binaural/bilateral fitting.

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“…It has been shown that for some HI individuals, severe deviations from average loudness perception exist, likely causing problems in daily life and with hearing aids (Oetting et al, 2018 ; van Beurden et al, 2020 ). Even if only a subgroup of HI listeners is affected, loudness models that aim to support hearing aid fitting and development need to account for these listeners.…”

Section: Discussionmentioning

confidence: 99%

“…With bilaterally aided HI listeners, it has been shown that binaurally presented broadband stimuli are perceived louder by aided HI listeners than by NH listeners at high levels, i.e., the uncomfortable level perceived as “too loud” is reached at lower levels (Oetting et al, 2018 ; van Beurden et al, 2020 ). For monaural presentation, this effect is smaller (Strelcyk et al, 2012 ; Oetting et al, 2016 ; Ewert and Oetting, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Toward an Individual Binaural Loudness Model for Hearing Aid Fitting and Development

et al. 2021

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The individual loudness perception of a patient plays an important role in hearing aid satisfaction and use in daily life. Hearing aid fitting and development might benefit from individualized loudness models (ILMs), enabling better adaptation of the processing to individual needs. The central question is whether additional parameters are required for ILMs beyond non-linear cochlear gain loss and linear attenuation common to existing loudness models for the hearing impaired (HI). Here, loudness perception in eight normal hearing (NH) and eight HI listeners was measured in conditions ranging from monaural narrowband to binaural broadband, to systematically assess spectral and binaural loudness summation and their interdependence. A binaural summation stage was devised with empirical monaural loudness judgments serving as input. While NH showed binaural inhibition in line with the literature, binaural summation and its inter-subject variability were increased in HI, indicating the necessity for individualized binaural summation. Toward ILMs, a recent monaural loudness model was extended with the suggested binaural stage, and the number and type of additional parameters required to describe and to predict individual loudness were assessed. In addition to one parameter for the individual amount of binaural summation, a bandwidth-dependent monaural parameter was required to successfully account for individual spectral summation.

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Uni- and bilateral spectral loudness summation and binaural loudness summation with loudness matching and categorical loudness scaling

Cited by 5 publications

References 44 publications

Age-Related Decline of Speech Perception

Age-Related Decline of Speech Perception

Spectral and binaural loudness summation of equally loud narrowband signals in single-sided-deafness and bilateral cochlear implant users

Toward an Individual Binaural Loudness Model for Hearing Aid Fitting and Development

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