The Acceptable Noise Level Benefit From Directionality for Listeners With Severe Hearing Loss

Aghsoleimani, Mina; Jalilvand, Hamid; Mahdavi, Mohammad Ebrahim; Nazeri, Ahmad Reza; Kamali, Mohammad

doi:10.21053/ceo.2017.01375

Cited by 9 publications

(6 citation statements)

References 20 publications

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“…The ANL improvement in our study is 4.44 dB and 3.72 dB for the directional-multichannel and the broadband DNR conditions, respectively. The results of the present study are consistent with those of other studies [ 8 , 11 , 19 , 21 , 24 ] and suggest it is most appropriate to use of both DIR and DNR algorithms. However, these results are limited to our specific study design as well as the laboratory findings because it has been shown the subject benefit depends on both the type of DSP employed by the hearing aid [ 8 , 11 ] and there may not DSP benefits in real life conditions because of reverberation or different types of noises.…”

Section: Discussionsupporting

confidence: 92%

The Effects of Hearing Aid Digital Noise Reduction and Directionality on Acceptable Noise Level

Ahmadi

Jalilvand

Mahdavi

et al. 2018

Clin Exp Otorhinolaryngol

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Objectives Two main digital signal processing technologies inside the modern hearing aid to provide the best conditions for hearing aid users are directionality (DIR) and digital noise reduction (DNR) algorithms. There are various possible settings for these algorithms. The present study evaluates the effects of various DIR and DNR conditions (both separately and in combination) on listening comfort among hearing aid users.Methods In 18 participants who received hearing aid fitting services from the Rehabilitation School of Shahid Beheshti University of Medical Sciences regularly, we applied acceptable noise level (ANL) as our subjective measure of listening comfort. We evaluated both of these under six different hearing aid conditions: omnidirectional-baseline, omnidirectional-broadband DNR, omnidirectional-multichannel DNR, directional, directional-broadband DNR, and directional-multichannel DNR.Results The ANL results ranged from −3 dB to 14 dB in all conditions. The results show, among all conditions, both the omnidirectional-baseline condition and the omnidirectional-broadband DNR condition are the worst conditions for listening in noise. The DIR always reduces the amount of noise that patients received during testing. The DNR algorithm does not improve listening in noise significantly when compared with the DIR algorithms. Although both DNR and DIR algorithms yielded a lower ANL, the DIR algorithm was more effective than the DNR.Conclusion The DIR and DNR technologies provide listening comfort in the presence of noise. Thus, user benefit depends on how the digital signal processing settings inside the hearing aid are adjusted.

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Section: Discussionsupporting

confidence: 92%

The Effects of Hearing Aid Digital Noise Reduction and Directionality on Acceptable Noise Level

Ahmadi

Jalilvand

Mahdavi

et al. 2018

Clin Exp Otorhinolaryngol

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“…Rather, UHL has been regarded as "a happy feature of a misfortune" because affected children show generally normal development [6]. The treatment options for UHL range from no intervention to FM amplification systems, conventional hearing aids, hearing aids with contralateral routing of signals, bone-anchored hearing aids, and cochlear implantation [28][29][30][31]. However, in real-world clinical situations, the majority of young people with UHL only receive preferential seating at the front of the class and are educated on the importance of protecting the contralateral ear with normal hearing.…”

Section: Discussionmentioning

confidence: 99%

Increased Risk of Psychopathological Abnormalities in Subjects With Unilateral Hearing Loss: A Cross-Sectional Study

Song

Kim

et al. 2021

Clin Exp Otorhinolaryngol

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Objective. Although unilateral hearing loss (UHL) has been proven to be associated with educational and behavioral problems, there are few studies on psychopathological abnormalities in this population. The aim of this study was to evaluate the psychopathological influence of UHL among Korean 19-year-old males.Methods. The authors retrospectively compared the objective personality test profiles of 602 subjects with UHL with those of 23,790 normal hearing peers. All participants in the current study were 19-year-old males who underwent physical examination and investigated the Korean Military Multiphasic Personality Inventory for conscription at the Military Manpower Administration from February 2015 to December 2016.Results. The neurosis scales revealed significantly higher scores in the UHL group as compared to the normal hearing group (50.9

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“…An omnidirectional microphone was set for all participants, and other digital signal processing algorithms (such as Sound Smoothing, eWind Screen, and Feedback Stopper) were inactivated. Based on the protocol introduced by Shahid Beheshti University of Medical Sciences (BUMS) for fitting the digital processing hearing aid, each participant was evaluated using the calibrated version of the Ling-6 sounds for evaluation of aided detection thresholds [16][17][18]. Despite the fact that DIN test was accomplished in suprathreshold level, the hearing aid was fitted so that the Ling-6 sounds were audible and discriminative in the level of 30 dB HL to provide equal audibility for all subjects.…”

Section: Hearing Aid Fittingmentioning

confidence: 99%

Auditory Recognition of Digit-in-Noise under Unaided and Aided Conditions in Moderate and Severe Sensorineural Hearing Loss

et al. 2021

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Background and Objectives: The speech-in-noise test is typically performed using an audiometer. The results of the digit-in-noise recognition (DIN) test may be influenced by the flat frequency response of free-field audiometry and frequency of the hearing aid fit based on fitting rationale. This study aims to investigate the DIN test in unaided and aided conditions. Subjects and Methods: Thirty four adults with moderate and severe sensorineural hearing loss (SNHL) participated in the study. The signal-to-noise ratio (SNR) for 50% of the DIN test was obtained in the following two conditions: 1) the unaided condition, performed using an audiometer in a free field; and 2) aided condition, performed using a hearing aid with an unvented individual earmold that was fitted based on NAL-NL2.Results: There was a statistically significant elevation in the mean SNR for the severe SNHL group in both test conditions when compared with that of the moderate SNHL group. In both groups, the SNR for the aided condition was significantly lower than that of the unaided condition.Conclusions: Speech recognition in hearing-impaired patients can be realized by fitting hearing aids based on evidence-based fitting rationale rather than by measuring it using free-field audiometry measurement that is utilized in a routine clinic setup.

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The Acceptable Noise Level Benefit From Directionality for Listeners With Severe Hearing Loss

Cited by 9 publications

References 20 publications

The Effects of Hearing Aid Digital Noise Reduction and Directionality on Acceptable Noise Level

The Effects of Hearing Aid Digital Noise Reduction and Directionality on Acceptable Noise Level

Increased Risk of Psychopathological Abnormalities in Subjects With Unilateral Hearing Loss: A Cross-Sectional Study

Auditory Recognition of Digit-in-Noise under Unaided and Aided Conditions in Moderate and Severe Sensorineural Hearing Loss

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