Abstract:
OBJECTIVE:The main objective was to investigate whether the broadening and narrowing of formant bandwidths had a significant effect on the identification of vowels often confused by Nucleus cochlear implant recipients using the Spectral Peak (SPEAK) speech coding strategy. Specifically, identification performance for synthetic vowels with the first two formants (F1 and F2) parametrically varied in bandwidth was explored. DESIGN:Eight implanted subjects identified synthetic versions of the isolated vowel sounds [I, epsilon, lambda, [symbol: see text]] with F1 and F2 bandwidth manipulations, as well as foil tokens of [i, u, a, ae, [symbol: see text]]. Identification performance was examined in terms of percent correct as well as error patterns. Further analyses compared patterns of electrode activation. RESULTS:In general, broader F1 bandwidths yielded poorer performance and narrower F1 bandwidths yielded better performance relative to identifications for the reference stimuli. However, similar manipulations of F2 bandwidths resulted in less predictable performance. Comparison of electrode activation patterns indicated a distinct sharpening or flattening in the F1 frequency region for subjects with the greatest performance extremes. CONCLUSIONS:Manipulation of F1 bandwidth can result in concomitant changes in electrode activation patterns and identification performance. This suggests that modifications in the SPEAK coding strategy for the F1 region may be a consideration. Similar manipulations of F2 bandwidth yielded less predictable results and require further investigation.
journal_name
Ear Hearjournal_title
Ear and hearingauthors
Hawks JW,Fourakis MS,Skinner MW,Holden TA,Holden LKdoi
10.1097/00003446-199712000-00006subject
Has Abstractpub_date
1997-12-01 00:00:00pages
479-87issue
6eissn
0196-0202issn
1538-4667journal_volume
18pub_type
杂志文章相关文献
EAR AND HEARING文献大全abstract:OBJECTIVES:The impact of social distancing on communication and psychosocial variables among individuals with hearing impairment during COVID-19 pandemic. It was our concern that patients who already found themselves socially isolated (Wie et al. 2010) as a result of their hearing loss would be perhaps more susceptible...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0000000000000991
更新日期:2020-12-22 00:00:00
abstract::Identification errors for initial consonants of consonants-vowels-consonants-vowels from lists A and B of the Nonsense Syllable Test were analyzed for 10 normal-hearing and 8 sensorineural hearing-impaired listeners. The Nonsense Syllable Test stimuli were presented binaurally through earphones at 6 increasing sensati...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/00003446-198105000-00006
更新日期:1981-05-01 00:00:00
abstract:OBJECTIVE:While the cochlear implant provides many deaf patients with good speech understanding in quiet, music perception and appreciation with the cochlear implant remains a major challenge for most cochlear implant users. The present study investigated whether a closed-set melodic contour identification (MCI) task c...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/01.aud.0000261689.35445.20
更新日期:2007-06-01 00:00:00
abstract::This paper will provide a backdrop to the others in this section on outcomes of children with mild to moderate sensorineural hearing loss. Our objective here is to provide an overview of the research approaches used to study the outcomes of these children to provide guidance for future studies of children with mild to...
journal_title:Ear and hearing
pub_type: 杂志文章,评审
doi:10.1097/AUD.0b013e318157f093
更新日期:2007-12-01 00:00:00
abstract:OBJECTIVES:The goal of this study was to evaluate how digital noise reduction (DNR) impacts listening effort and judgment of sound clarity in children with normal hearing. It was hypothesized that when two DNR algorithms differing in signal-to-noise ratio (SNR) output are compared, the algorithm that provides the great...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/01.aud.0000440715.85844.b8
更新日期:2014-03-01 00:00:00
abstract:OBJECTIVES:To investigate the music perception skills of adult cochlear implant (CI) users in comparison with hearing aid (HA) users who have similar levels of hearing impairment. It was hypothesized that the HA users would perform better than the CI recipients on tests involving pitch, instrument, and melody perceptio...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0b013e31816a0d0b
更新日期:2008-06-01 00:00:00
abstract::The present study was designed to investigate the effects of reference microphone location on probe tube microphone measures of hearing aid response. The reference microphone of a clinical probe tube microphone system was located either at a position on the cheek (position A) or in close proximity to the microphone of...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/00003446-199010000-00001
更新日期:1990-10-01 00:00:00
abstract:OBJECTIVES:The ability of a treatment method to interfere with tinnitus-related neural activity patterns, such as cortical gamma rhythms, has been suggested to indicate its potential in relieving tinnitus. Therapeutic modulation of gamma-band oscillations with vagus nerve stimulation has been recently reported in epile...
journal_title:Ear and hearing
pub_type: 临床试验,杂志文章
doi:10.1097/AUD.0000000000000123
更新日期:2015-05-01 00:00:00
abstract:OBJECTIVE:Cochlear implant patients have difficulty in noisy environments, in part, because of channel interaction. Interleaving the signal by sending every other channel to the opposite ear has the potential to reduce channel interaction by increasing the space between channels in each ear. Interleaving still potentia...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0000000000000249
更新日期:2016-03-01 00:00:00
abstract::A moderate-bandwidth master hearing aid was used to study the relationships among low-frequency response, syllable recognition scores, and perceived speech quality. As measured on KEMAR, this hearing aid provided true high-frequency emphasis in all conditions, with three degrees of relative low-frequency de-emphasis. ...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/00003446-198604000-00001
更新日期:1986-04-01 00:00:00
abstract:OBJECTIVES:New tinnitus therapies are being developed and marketed that target the patient's tinnitus frequency. This frequency is estimated clinically by pitch matching, which has the patient identify the pure tone that is closest to the perceived tinnitus frequency. Though widely used, pitch matching is heavily criti...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0000000000000081
更新日期:2014-11-01 00:00:00
abstract::Recent advances in electrode design have helped to rekindle clinical interests in noninvasive electrocochleography--to enhance auditory brain stem response (ABR) recordings (namely, wave I) and to screen Meniere's disease. The salient feature of the response in suspected cases of endolymphatic hydrops is an unusually ...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/00003446-199104000-00011
更新日期:1991-04-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to compare binaural performance of auditory localization task and speech perception in babble measure between children who use a cochlear implant (CI) in one ear and a hearing aid (HA) in the other (bimodal fitting) and those who use bilateral CIs. DESIGN:Thirteen children (mean ag...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0000000000000401
更新日期:2017-07-01 00:00:00
abstract:OBJECTIVES:Previous research has demonstrated the feasibility of programming cochlear implants (CIs) via telepractice. To effectively use telepractice in a comprehensive manner, all components of a clinical CI visit should be validated using remote technology. Speech-perception testing is important for monitoring outco...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0000000000000693
更新日期:2019-09-01 00:00:00
abstract::Everyday conversation frequently includes challenges to the clarity of the acoustic speech signal, including hearing impairment, background noise, and foreign accents. Although an obvious problem is the increased risk of making word identification errors, extracting meaning from a degraded acoustic signal is also cogn...
journal_title:Ear and hearing
pub_type: 杂志文章,评审
doi:10.1097/AUD.0000000000000494
更新日期:2018-03-01 00:00:00
abstract:OBJECTIVES:(1) To present hearing threshold data from a recent nationally representative survey in the United States (National Health and Nutrition Examination Survey, 1999-2004) in a distributional format that might be appropriate to replace Annex B in international (ISO-1999) and national (ANSI S3.44) standards and (...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0b013e3181e9770e
更新日期:2010-12-01 00:00:00
abstract:OBJECTIVE:This study investigated factors contributing to the comprehension and production of English language by children with prelingual deafness after 4 to 7 yr of multichannel cochlear implant use. The analysis controlled for the effects of child and family characteristics so that educational factors most conducive...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/01.AUD.0000051689.57380.1B
更新日期:2003-02-01 00:00:00
abstract:OBJECTIVES:The objectives of this research were to develop and evaluate a self-report questionnaire (the Emotional Communication in Hearing Questionnaire or EMO-CHeQ) designed to assess experiences of hearing and handicap when listening to signals that contain vocal emotion information. DESIGN:Study 1 involved interne...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0000000000000611
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVE:Compare speech performance in noise with matched bilateral cochlear implant (CICI) and unilateral cochlear implant (CI only) users. DESIGN:Thirty CICI and 30 CI-only subjects were tested on a battery of speech perception tests in noise that use an eight-loudspeaker array. RESULTS:On average, CICI subject's ...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0b013e3181c12383
更新日期:2010-04-01 00:00:00
abstract:OBJECTIVE:To investigate the incidence of tinnitus that burdens the health service in England. DESIGN:This was an observational study of 4.7 million residents of England under 85 years of age who were at risk for developing clinically significant tinnitus (sigT). SigT was defined by a discharge from hospital with a pr...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0000000000000121
更新日期:2015-05-01 00:00:00
abstract:OBJECTIVES:Normalizing perceived loudness is an important rationale for gain adjustments in hearing aids. It has been demonstrated that gains required for restoring normal loudness perception for monaural narrowband signals can lead to higher-than-normal loudness in listeners with hearing loss, particularly for binaura...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0000000000000521
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVE:To evaluate the effectiveness of a home-based and a laboratory-based localization training program. DESIGN:This study examined the effectiveness of a localization training program on improving the localization ability of 15 participants with a mild-to-moderately severe hearing loss. These participants had wo...
journal_title:Ear and hearing
pub_type: 临床试验,杂志文章
doi:10.1097/AUD.0000000000000067
更新日期:2014-11-01 00:00:00
abstract:OBJECTIVE:The purpose of this study is to present descriptive results from an audiometric examination of a male twin sample, compare the values with normative databases, and explore whether there are age differences in genetic and environmental contributions to variation in hearing. DESIGN:Audiometric and questionnair...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/00003446-199704000-00003
更新日期:1997-04-01 00:00:00
abstract::Speech recognition thresholds (SRTs) were measured for a closed set of spondees that had been processed by peak clipping and compression. Both hearing-impaired and normal-hearing subject groups showed progressively higher SRTs with increasing levels of peak clipping, with significant threshold shifts occurring for cli...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/00003446-199412000-00005
更新日期:1994-12-01 00:00:00
abstract:OBJECTIVES:Cochlear reflectance (CR) is the cochlear contribution to ear-canal reflectance. CR is a type of otoacoustic emission (OAE) that is calculated as a transfer function between forward pressure and reflected pressure. The purpose of this study was to compare wideband CR to distortion-product (DP) OAEs in two wa...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0000000000000677
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVES:Previous research suggests that young children have significant difficulty recognizing speech in the presence of background noise as compared with older children and adults. However, limited research exists that examines the developmental effects of speech recognition in noise in separate age groups of young...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0b013e318258c616
更新日期:2012-11-01 00:00:00
abstract::This study examined whether female subjects who had balanced hormonal profiles and who were experiencing the characteristic fluctuation in estrogen and progesterone levels exhibited changes in auditory function unlike subjects who were using a low-dose combined estrogen and progesterone steroid. Threshold data at 500,...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/00003446-198007000-00008
更新日期:1980-07-01 00:00:00
abstract:OBJECTIVES:Lexical tone information provides redundant cues for the recognition of Mandarin sentences in listeners with normal hearing in quiet conditions. The contribution of lexical tones to Mandarin sentence recognition in listeners with hearing aids (HAs) is unclear. This study aimed to remove lexical tone informat...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0000000000000774
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVE:The purposes of this study were to (a) examine the accuracy of cochlear implant recipients who use different types of devices and signal processing strategies on pitch ranking as a function of size of interval and frequency range and (b) to examine the relations between this pitch perception measure and demog...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/AUD.0b013e3180479318
更新日期:2007-06-01 00:00:00
abstract::Because some unilaterally hearing-impaired children appear to experience difficulty in communication and educational progress, it seems only appropriate to reassess the identification and management strategies that are used with these children. Accordingly, this paper presents some general information on identificatio...
journal_title:Ear and hearing
pub_type: 杂志文章
doi:10.1097/00003446-198602000-00008
更新日期:1986-02-01 00:00:00