Abstract:
:In this study, we present a new method to derive a single-number measure of the directivity of hearing aids. The method is an extension of the conventional directivity index (DI), and is called overall directivity index (ODI). The directivities of five different hearing aid styles were compared with that of the open ear. The behind-the-ear (BTE) style showed the lowest directionality compared to the other hearing aid styles and the open ear. There were only minor differences in directivity between any of the four different hearing aid styles placed in the ear and of the open ear canal. The conventional measure of DI is less suitable for hearing aids, because it ignores sound coming from other than the frontal direction. To quantify directionality of a hearing aid in a real-life situation, we suggest the single-number ODI, weighted with the articulation index and related to a listening segment of 0-30 degrees. An application of the data is shown for a BTE with a directional microphone.
journal_name
Int J Audioljournal_title
International journal of audiologyauthors
Olsen HL,Hagerman Bdoi
10.3109/14992020209101312keywords:
subject
Has Abstractpub_date
2002-01-01 00:00:00pages
48-56issue
1eissn
1499-2027issn
1708-8186journal_volume
41pub_type
杂志文章abstract::The aim of this study was to evaluate self-reported outcomes among hearing aid users (age 16-89 years; mean 45.8 years) to determine the effectiveness of aural rehabilitation in Nigeria based on the International Outcome Inventory for Hearing Aids (IOI-HA). The responses were evaluated with descriptive statistics, fac...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020400050072
更新日期:2004-11-01 00:00:00
abstract::Objectives: This article aims to estimate the global and regional needs, unmet needs and access to hearing aids, as well as the morbidity that can be averted by their use.Design: The study was based on Global Burden of Disease data. Study sample: Hearing impaired individuals "in need" of a hearing aid were defined as ...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2020.1721577
更新日期:2020-03-01 00:00:00
abstract:OBJECTIVE:Using a dual task paradigm, two experiments were conducted to: (1) quantify the listening effort that young and older adults expend to recognize speech in noise when presented under audio-only (Experiment 1) and audiovisual conditions (Experiment 2) and, (2) determine the influence visual cues have on listeni...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2011.599870
更新日期:2011-11-01 00:00:00
abstract::Real-ear measurements using the modified pressure method with concurrent (real-time) equalization can be inaccurate, when amplified sound leaks out of the ear canal and reaches the reference microphone. In such situations the reference microphone will detect an increased sound level and reduce the output of the loudsp...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020601083313
更新日期:2007-01-01 00:00:00
abstract:OBJECTIVE:Hearing loss (HL) affects the everyday functioning of millions of people worldwide. The Brief International Classification of Functioning Disability and Health (ICF) core sets for HL was developed to meet the complex health care needs of adults with HL. Because the brief core set for HL has not yet been valid...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2020.1846088
更新日期:2020-11-18 00:00:00
abstract:OBJECTIVE:To understand the impact of face coverings on hearing and communication. DESIGN:An online survey consisting of closed-set and open-ended questions distributed within the UK to gain insights into experiences of interactions involving face coverings, and of the impact of face coverings on communication. SAMPL...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2020.1851401
更新日期:2020-11-27 00:00:00
abstract:OBJECTIVE:To review the contemporary surgical issues in paediatric cochlear implantation (CI) based on published evidence. DESIGN:Narrative literature review. RESULTS:Surgical challenges in paediatric CI are discussed, with respect to post meningitic labyrinthitis ossificans; cochlear malformation; cochlear implantat...
journal_title:International journal of audiology
pub_type: 杂志文章,评审
doi:10.1080/14992027.2016.1184765
更新日期:2016-01-01 00:00:00
abstract::The aim of this study was to evaluate, in 20 young volunteer subjects, the effects of supra-physiological vitamin B12 administration on noise-induced temporary threshold shift (TTS). All subjects had hearing thresholds within 15 dBHL and type A tympanograms. The subjects were randomly assigned to two different groups....
journal_title:International journal of audiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1080/14992020400050022
更新日期:2004-03-01 00:00:00
abstract::We compared two adaptive procedures for fitting a multi-channel compression hearing aid. "Camadapt" uses judgements of the loudness of speech stimuli and the tonal quality of music stimuli. "Eartuner" uses judgements of the loudness and clarity of speech stimuli with differing spectral characteristics. Sixteen new use...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020500060198
更新日期:2005-06-01 00:00:00
abstract::The effect of inverting electrode location and stimulus perceptibility on the presence of the mismatch negativity (MMN) evoked response was investigated in 20 normal-hearing adult females. Perceptible and imperceptible frequency contrasts were employed in an oddball paradigm. The perceptible contrast consisted of an 1...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020802283241
更新日期:2008-11-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to explore the use of virtual visits to monitor hearing aid use with data logging measurements and provide parent support for hearing aid management. DESIGN:A 6-month longitudinal case study design was used. STUDY SAMPLE:Four families and two providers participated. RESULTS:Av...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2016.1226521
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVE:Endolymphatic sac tumours (ELSTs) of the inner ear occur in 16% of patients with the hereditary tumor syndrome von Hippel-Lindau disease (vHL). ELSTs of all sizes can cause irreversible hearing loss which can, however, be prevented through early diagnosis and treatment. We aim to emphasize the challenges of p...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2013.824117
更新日期:2013-11-01 00:00:00
abstract::Objective: To compare the temporal processing skills and speech in noise perception of hearing-impaired individuals through channel free and multichannel hearing aids.Design: A quasi-experimental study.Study sample: Twenty-one participants with sensory neural hearing loss were involved in the study. They were subjecte...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2019.1660005
更新日期:2019-12-01 00:00:00
abstract:OBJECTIVE:To examine the relationship between portable digital audio player listening behaviours and (1) measured sound pressure levels, (2) audiometric measures, (3) self-reported hearing loss symptoms. DESIGN:A questionnaire to evaluate listening behaviours, including self-reported hearing loss symptoms and listenin...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2013.798687
更新日期:2013-09-01 00:00:00
abstract:OBJECTIVE:To estimate the prevalence of severe dual sensory loss (DSL) among older persons (aged ≥65 years) in the Swedish population, to identify the diagnoses that cause severe DSL, and to identify rehabilitation services in which the participants have been involved. DESIGN:A cross-sectional design was applied. Medi...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2020.1783003
更新日期:2020-12-01 00:00:00
abstract::The aim of the study is to understand the implications of disclosing the results of connexin26 (Cx26) gene testing to the concerned family with hearing impaired individuals. The department of biotechnology is funding a multicentric multidisciplinary team from Jawaharlal Nehru Center for Advanced Scientific Research (B...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020701297805
更新日期:2007-07-01 00:00:00
abstract::The aim of this study was to develop Polish sentence tests for accurate measuring of speech intelligibility in masking interfering noise. Two sets of sentence lists have been developed. The first set was composed of 25 lists and was used for sentence intelligibility scoring. The second set was composed of 22 lists and...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020902725521
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVES:Recent retrospective studies report differences in auditory neurophysiology between concussed athletes and uninjured controls using the frequency-following response (FFR). Adopting a prospective design in college football players, we compared FFRs before and after a concussion and evaluated test-retest relia...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2020.1860261
更新日期:2021-01-13 00:00:00
abstract::The paper describes the outcomes of an ongoing universal hearing screening program in Tirana, Albania. The main objectives of the project were the evaluation of the feasibility of a neonatal hearing screening program in Albania, and an evaluation of the prevalence of risk factors in the NICU environment. One thousand ...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020601145310
更新日期:2007-04-01 00:00:00
abstract::The speech intelligibility benefit of visual speech cues during oral communication is well-established. Therefore, an ecologically valid approach of auditory assessment should include the processing of both auditory and visual speech cues. This study describes the development and evaluation of a virtual human speaker ...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2018.1511922
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVE:A controlled field experiment was conducted to evaluate localization of suprathreshold gunshot reports (from blank cartridges) with four hearing protection-enhancement devices (HPEDs) in comparison to the open ear with ambient outdoor noise and in 82 dBA diesel military heavy truck noise. DESIGN:Five measure...
journal_title:International journal of audiology
pub_type: 临床试验,杂志文章
doi:10.3109/14992027.2011.631591
更新日期:2012-02-01 00:00:00
abstract:OBJECTIVE:The main purpose of this research was to obtain normative data for auditory processing tests for Norwegian speaking children. DESIGN:Participants were administered routine audiological tests and an auditory processing test-battery consisting of Filtered Words, Competing Words, Dichotic Digits, Gaps In Noise,...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2017.1366670
更新日期:2018-01-01 00:00:00
abstract::Clinical procedures related to patients with Alzheimer's Disease (AD) largely fail to address the patient's hearing. Given the challenges of this population, unconventional indicators of treatment efficacy may be required. Palmer et al (1999) reported on caregiver-tracked behaviors as outcome measures for hearing aid ...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020400022637
更新日期:2005-01-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to evaluate the feasibility of conducting a randomized controlled trial (RCT) on the effect of motivational interviewing (MI) on hearing-aid use. DESIGN:This was a pilot single-blind, randomized parallel-group study conducted in the UK. STUDY SAMPLE:Thirty-seven adult patients who...
journal_title:International journal of audiology
pub_type: 杂志文章,随机对照试验
doi:10.3109/14992027.2015.1074733
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:We assessed the reliability of a hearing risk factor screening survey used by hearing conservation programmes for noise-exposed workers. DESIGN:We compared workers' answers from the screening survey to their answers to a confidential research questionnaire regarding hearing loss risk factors. We calculated k...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2016.1226520
更新日期:2016-12-01 00:00:00
abstract::Objective: This systematic review investigated if hearing aid use was associated with acute improvements in cognitive function in hearing-impaired adults. Design: The review question and inclusion/exclusion criteria were designed using the Population, Intervention, Control, Outcomes, and Study design (PICOS) mnemonic....
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2019.1594414
更新日期:2019-08-01 00:00:00
abstract::This study investigated the change in music perception of adults undergoing cochlear implantation. Nine adults scheduled for a cochlear implant (CI) were assessed on a music test battery both prior to implantation (whilst using hearing aids; HAs), and three months after activation of their CIs. The results were compar...
journal_title:International journal of audiology
pub_type: 杂志文章,多中心研究
doi:10.1080/14992020801955237
更新日期:2008-05-01 00:00:00
abstract::Acoustically, a room's boundaries can be thought of as dirty mirrors. By repeated reflections, these mirrors generate multiple sound images whose intensities decrease with increasing distance. The sound energy received from these images (conditioned by the inverse square law and atmospheric absorption) sums with direc...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020600782576
更新日期:2006-01-01 00:00:00
abstract:OBJECTIVE:To evaluate the prevalence of labyrinthine ossification, and especially cochlear ossification, in a cohort of patients with unilateral sudden deafness or severe sensorineural hearing loss. DESIGN:Retrospective data collection. STUDY SAMPLE:Sixty-four consecutive patients with unilateral sudden deafness or s...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2013.786191
更新日期:2013-07-01 00:00:00
abstract::Children with dichotic left ear deficits received intensive training in phase I and phase II clinical trials designed to establish the efficacy of directly training dichotic listening. Dichotic verbal material was presented in the sound field with intensity adjusted separately for each speaker. Output from the right-s...
journal_title:International journal of audiology
pub_type: 杂志文章,多中心研究
doi:10.1080/14992020701770835
更新日期:2008-02-01 00:00:00