One of the main issues in hearing-aid fittings is the abnormal perception of the user's own voice as too loud, "boomy," or "hollow." This phenomenon known as the occlusion effect be reduced by large vents in the earmolds or by open-fit hearing aids. This review provides an overview of publications related to open and closed hearing-aid fittings. First, the occlusion effect and its consequences for perception while using hearing aids are described. Then, the advantages and disadvantages of open compared with closed fittings and their impact on the fitting process are addressed. The advantages include less occlusion, improved own-voice perception and sound quality, and increased localization performance. The disadvantages associated with open-fit hearing aids include reduced benefits of directional microphones and noise reduction, as well as less compression and less available gain before feedback. The final part of this review addresses the need for new approaches to combine the advantages of open and closed hearing-aid fittings.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4765810 | PMC |
http://dx.doi.org/10.1177/2331216516631741 | DOI Listing |
Iran J Otorhinolaryngol
January 2025
Senior Resident, Department of ENT and Head & Neck Surgery , All India Institute of Medical Sciences, Bathinda, Punjab, India.
Introduction: Electric shock occurs when electricity passes through the body, causing a range of symptoms from mild tingling to potentially life-threatening injuries such as burns, seizures, and cardiac arrest. In rare cases, Sudden Sensorineural Hearing Loss (SSNHL) has also been associated with an electric shock.
Case Report: A 35-year-old male presented with left-sided hearing loss following an electric shock.
Age Ageing
January 2025
Division of Psychiatry, University College London, London, UK.
Background: Age-related hearing loss and mild cognitive impairment (MCI) independently increase dementia risk. The Ageing and Cognitive Health Evaluation in Elders randomised controlled trial (RCT) found hearing aids reduce cognitive decline in high-risk older adults with poor hearing.
Methods: This pilot RCT in London memory clinics randomised people with MCI (aged ≥55, untreated hearing loss defined as Pure Tone Average 0.
Laryngoscope
January 2025
Department of Otolaryngology, Walter Reed National Military Medical Center, Bethesda, Maryland, U.S.A.
Objectives: To investigate hearing aid utilization rates among populations with varying hearing aid insurance benefits.
Methods: A retrospective cohort study was performed. A total of 377 patients were included in the study after being identified through consecutive, hearing loss-related otology clinic visits.
Int J Audiol
January 2025
German Institute of Hearing Aids, Lübeck, Germany.
Objective: To describe application scenarios of a mobile device that provides a practical means for showcasing potential hearing aid benefits.
Design: A prototype of a hearing aid demonstrator based on circumaural headphones and a mobile signal processing platform was developed, providing core functions of a hearing aid, including several gain presets, in a hygienic, robust, and easy-to-use form factor. Speech intelligibility outcomes with the demonstrator and broadband level adaptations as potential fitting references were compared to outcomes with the own hearing aids of hearing-impaired participants.
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