Improved binaural speech reception thresholds through small symmetrical separation of speech and noise

Wagner, Luise; Geiling, Lukas; Hauth, Christopher F.; Hocke, Thomas; Plontke, Stefan K.; Rahne, Torsten

doi:10.1371/journal.pone.0236469

Cited by 9 publications

(7 citation statements)

References 28 publications

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“…Unfortunately, no binaural hearing benefit was identified in this study. The reduction of speech intelligibility due to noise has been associated with various factors, including localization of noise, SNR, and type of noise [ 39 , 40 ]. Speech-weighted noises were presented from ±45 degrees azimuth according to ISO 8253-3 (2012), which symmetrically disturbed the hearing in both ears.…”

Section: Discussionmentioning

confidence: 99%

Benefits of Cartilage Conduction Hearing Aids for Speech Perception in Unilateral Aural Atresia

et al. 2021

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Severe conductive hearing loss due to unilateral aural atresia leads to auditory and developmental disorders, such as difficulty in hearing in challenging situations. Bone conduction devices compensate for the disability but unfortunately have several disadvantages. The aim of this study was to evaluate the benefits of cartilage conduction (CC) hearing aids for speech perception in unilateral aural atresia. Eleven patients with unilateral aural atresia were included. Each participant used a CC hearing aid in the atretic ear. Speech recognition scores in the binaural hearing condition were obtained at low speech levels to evaluate the contribution of aided atretic ears to speech perception. Speech recognition scores were also obtained with and without presentation of noise. These assessments were compared between the unaided and aided atretic ear conditions. Speech recognition scores at low speech levels were significantly improved under the aided atretic ear condition (p < 0.05). A CC hearing aid in the unilateral atretic ear did not significantly improve the speech recognition score in a symmetrical noise presentation condition. The binaural hearing benefits of CC hearing aids in unilateral aural atresia were predominantly considered a diotic summation. Other benefits of binaural hearing remain to be investigated.

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Section: Discussionmentioning

confidence: 99%

Benefits of Cartilage Conduction Hearing Aids for Speech Perception in Unilateral Aural Atresia

et al. 2021

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“…In normally hearing listeners, SRM has been reported to be up to and above 10 dB when SRT is compared between co-located and spatially separated speech and noise signals [ 23 , 31 , 32 ]. In BICI, this effect is considerably smaller, in the order of 3 dB [ 25 ], when investigated with the speech signal in the front and the noise signal on the side.…”

Section: Discussionmentioning

confidence: 99%

Improvements in Hearing and in Quality of Life after Sequential Bilateral Cochlear Implantation in a Consecutive Sample of Adult Patients with Severe-to-Profound Hearing Loss

Sivonen

Sinkkonen

Willberg

et al. 2021

JCM

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Bilateral cochlear implantation is increasing worldwide. In adults, bilateral cochlear implants (BICI) are often performed sequentially with a time delay between the first (CI1) and the second (CI2) implant. The benefits of BICI have been reported for well over a decade. This study aimed at investigating these benefits for a consecutive sample of adult patients. Improvements in speech-in-noise recognition after CI2 were followed up longitudinally for 12 months with the internationally comparable Finnish matrix sentence test. The test scores were statistically significantly better for BICI than for either CI alone in all assessments during the 12-month period. At the end of the follow-up period, the bilateral benefit for co-located speech and noise was 1.4 dB over CI1 and 1.7 dB over CI2, and when the noise was moved from the front to 90 degrees on the side, spatial release from masking amounted to an improvement of 2.5 dB in signal-to-noise ratio. To assess subjective improvements in hearing and in quality of life, two questionnaires were used. Both questionnaires revealed statistically significant improvements due to CI2 and BICI. The association between speech recognition in noise and background factors (duration of hearing loss/deafness, time between implants) or subjective improvements was markedly smaller than what has been previously reported on sequential BICI in adults. Despite the relatively heterogeneous sample, BICI improved hearing and quality of life.

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“…These findings underscore the crucial role of binaural hearing in speech perception, particularly in noisy environments. Even individuals with normal hearing find understanding speech in noise challenging [59]. Binaural hearing can substantially improve speech perception in noisy conditions and has been the focus of several trials for users of hearing technologies [60][61][62].…”

Section: Factors With Prognostic Value For Speech Perception Outcomesmentioning

confidence: 99%

“…Binaural hearing can substantially improve speech perception in noisy conditions and has been the focus of several trials for users of hearing technologies [60][61][62]. The binaural neural processing of the interaural level difference (ILD) and interaural time difference (ITD) can improve the internal SNR and consequently speech intelligibility [59,63].…”

Section: Factors With Prognostic Value For Speech Perception Outcomesmentioning

confidence: 99%

Predictors of cochlear implant outcomes in pediatric auditory neuropathy: A matched case-control study

Jafari,

Fitzpatrick,

Schramm

et al. 2024

PLoS ONE

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Objectives Current evidence supports the benefits of cochlear implants (CIs) in children with hearing loss, including those with auditory neuropathy spectrum disorder (ANSD). However, there is limited evidence regarding factors that hold predictive value for intervention outcomes. Design This retrospective case-control study consisted of 66 children with CIs, including 22 with ANSD and 44 with sensorineural hearing loss (SNHL) matched on sex, age, age at CI activation, and the length of follow-up with CIs (1:2 ratio). The case and control groups were compared in the results of five open-set speech perception tests, and a Forward Linear Regression Model was used to identify factors that can predict the post-CI outcomes. Results There was no significant difference in average scores between the two groups across five outcome measures, ranging from 88.40% to 95.65%. The correlation matrix revealed that younger ages at hearing aid fitting and CI activation positively influenced improvements in speech perception test scores. Furthermore, among the variables incorporated in the regression model, the duration of follow-up with CIs, age at CI activation, and the utilization of two CIs demonstrated prognostic significance for improved post-CI speech perception outcomes. Conclusions Children with ANSD can achieve similar open-set speech perception outcomes as children with SNHL. A longer CI follow-up, a lower age at CI activation, and the use of two CIs are predictive for optimal CI outcome.

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Improved binaural speech reception thresholds through small symmetrical separation of speech and noise

Cited by 9 publications

References 28 publications

Benefits of Cartilage Conduction Hearing Aids for Speech Perception in Unilateral Aural Atresia

Benefits of Cartilage Conduction Hearing Aids for Speech Perception in Unilateral Aural Atresia

Improvements in Hearing and in Quality of Life after Sequential Bilateral Cochlear Implantation in a Consecutive Sample of Adult Patients with Severe-to-Profound Hearing Loss

Predictors of cochlear implant outcomes in pediatric auditory neuropathy: A matched case-control study

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