Spectral and binaural loudness summation for hearing-impaired listeners

Oetting, Dirk; Hohmann, Volker; Appell, Jens-E.; Kollmeier, Birger; Ewert, Stephan D.

doi:10.1016/j.heares.2016.03.010

Cited by 33 publications

(84 citation statements)

References 51 publications

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“…Seven listeners had steep sloping audiograms classified as S2 (4) and S3 (3). For reasons of comparison, reference data from nine NH listeners measured by Oetting et al. (2016) were used.…”

Section: Methodsmentioning

confidence: 99%

“…All stimuli were 1-s noises with 50-ms rise and fall ramps and identical to the stimuli used by Oetting et al. (2016) .…”

Section: Methodsmentioning

confidence: 99%

“…These types of loudness summation may require individual corrections. Recent data of HI listeners ( Oetting, Hohmann, Appell, Kollmeier, & Ewert, 2016 ) showed large individual differences in spectral loudness summation and binaural loudness summation after careful narrowband loudness normalization. Some of the listeners showed loudness perception for binaural broadband signals that was fully in agreement with NH reference data, whereas others showed a higher-than-normal loudness summation of up to 30 dB SPL for the binaurally presented broadband signals.…”

Section: Introductionmentioning

confidence: 99%

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Potential Consequences of Spectral and Binaural Loudness Summation for Bilateral Hearing Aid Fitting

et al. 2018

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Aversiveness of loud sounds is a frequent complaint by hearing aid users, especially when fitted bilaterally. This study investigates whether loudness summation can be held responsible for this finding. Two aspects of loudness summation should be taken into account: spectral loudness summation for broadband signals and binaural loudness summation for signals that are presented binaurally. In this study, the effect of different symmetrical hearing losses was studied. Measurements were obtained with the widely used technique of Adaptive Categorical Loudness Scaling. For large bandwidths, spectral loudness summation for hearing-impaired listeners was found to be greater than that for normal-hearing listeners, both for monaurally and binaurally presented signals. For binaural loudness summation, the effect of hearing loss was not significant. In all cases, individual differences were substantial.

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“…Seven listeners had steep sloping audiograms classified as S2 (4) and S3 (3). For reasons of comparison, reference data from nine NH listeners measured by Oetting et al. (2016) were used.…”

Section: Methodsmentioning

confidence: 99%

“…All stimuli were 1-s noises with 50-ms rise and fall ramps and identical to the stimuli used by Oetting et al. (2016) .…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Potential Consequences of Spectral and Binaural Loudness Summation for Bilateral Hearing Aid Fitting

et al. 2018

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“…One approach to investigate this further is the comparison of activation maps for unilateral and bilateral acoustic stimuli from normal hearing participants with those from hearing impaired participants, who typically experience a change in their loudness perception. For example, some hearing impaired listeners show an increased binaural loudness summation for broadband stimuli [2]. As mentioned above, the physiological background for this effect is not yet clear.…”

Section: Motivationmentioning

confidence: 99%

“…Binaural loudness summation refers to the finding that a binaural sound is perceived as louder than the same sound presented monaurally at the same level. Some hearing impaired listeners show an increased binaural loudness summation for broadband stimuli [2]. The physiological background for this effect is not yet clear.…”

Section: Auditory Fmri Correlates Of Loudness Perception For Monauralmentioning

confidence: 99%

Auditory fMRI correlates of loudness perception for monaural and diotic stimulation

Uppenkamp¹,

Behler²

2016

Proceedings of Meetings on Acoustics

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Loudness as the perceptual correlate of sound intensity is formed by some neural processing along the auditory pathway from the cochlea to the cortex. The loudness of a sound is largely determined by its level. Still, there are several other acoustical factors like stimulus bandwidth, duration, modulations, as well as personal factors like, e.g., the individual hearing status, that may affect perceived loudness. Binaural loudness summation refers to the finding that a binaural sound is perceived as louder than the same sound presented monaurally at the same level. Some hearing impaired listeners show an increased binaural loudness summation for broadband stimuli. The physiological background for this effect is not yet clear. We report an auditory functional MRI study comparing results from normal hearing and hearing-impaired listeners for monaural and diotic stimuli presented at different intensities. All listeners completed a categorical loudness scaling procedure, to allow for an analysis of the auditory fMRI data with respect to both, physical sound intensity as well as individual loudness perception. The results indicate systematic differences across the different stages of the auditory pathway, when comparing level and loudness-related brain activation. The brain activation is systematically increasing with sound level at all stages from brainstem to cortex. Specific effects related to individual loudness and loudness summation can be demonstrated in primary auditory cortex and in auditory association areas in Planum temporale, while the activation in more lateral regions on the first transverse temporal gyrus (Heschl) in cortex as well as in auditory brainstem structures appears to be less specific for individual loudness judgements.

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Computational Models of Binaural Processing

Dietz

Ashida

2021

Springer Handbook of Auditory Research

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Spectral and binaural loudness summation for hearing-impaired listeners

Cited by 33 publications

References 51 publications

Potential Consequences of Spectral and Binaural Loudness Summation for Bilateral Hearing Aid Fitting

Potential Consequences of Spectral and Binaural Loudness Summation for Bilateral Hearing Aid Fitting

Auditory fMRI correlates of loudness perception for monaural and diotic stimulation

Computational Models of Binaural Processing

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