Abstract:
BACKGROUND:Hearing aids today often provide both directional (DIR) and omnidirectional (OMNI) processing options with the currently active mode selected automatically by the device. The most common approach to automatic switching involves "acoustic scene analysis" where estimates of various acoustic properties of the listening environment (e.g., signal-to-noise ratio [SNR], overall sound level) are used as a basis for switching decisions. PURPOSE:The current study was carried out to evaluate an alternative, "direct-comparison" approach to automatic switching that does not involve assumptions about how the listening environment may relate to microphone preferences. Predictions of microphone preference were based on whether DIR- or OMNI-processing of a given listening environment produced a closer match to a reference template representing the spectral and temporal modulations present in clean speech. RESEARCH DESIGN:A descriptive and correlational study. Predictions of OMNI/DIR preferences were determined based on degree of similarity between spectral and temporal modulations contained in a reference, clean-speech template, and in OMNI- and DIR-processed recordings of various listening environments. These predictions were compared with actual preference judgments (both real-world judgments and laboratory responses to the recordings). DATA COLLECTION AND ANALYSIS:Predictions of microphone preference were based on whether DIR- or OMNI-processing of a given listening environment produced a closer match to a reference template representing clean speech. The template is the output of an auditory processing model that characterizes the spectral and temporal modulations associated with a given input signal (clean speech in this case). A modified version of the spectro-temporal modulation index (mSTMI) was used to compare the template to both DIR- and OMNI-processed versions of a given listening environment, as processed through the same auditory model. These analyses were carried out on recordings (originally collected by Walden et al, 2007) of OMNI- and DIR-processed speech produced in a range of everyday listening situations. Walden et al reported OMNI/DIR preference judgments made by raters at the same time the field recordings were made and judgments based on laboratory presentations of these recordings to hearing-impaired and normal-hearing listeners. Preference predictions based on the mSTMI analyses were compared with both sets of preference judgments. RESULTS:The mSTMI analyses showed better than 92% accuracy in predicting the field preferences and 82-85% accuracy in predicting the laboratory preference judgments. OMNI processing tended to be favored over DIR processing in cases where the analysis indicated fairly similar mSTMI scores across the two processing modes. This is consistent with the common clinical assignment of OMNI mode as the default setting, most likely to be preferred in cases where neither mode produces a substantial improvement in SNR. Listeners experienced with switchable OMNI/DIR hearing aids were more likely than other listeners to favor the DIR mode in instances where mSTMI scores only slightly favored DIR processing. CONCLUSIONS:A direct-comparison approach to OMNI/DIR mode selection was generally successful in predicting user preferences in a range of listening environments. Future modifications to the approach to further improve predictive accuracy are discussed.
journal_name
J Am Acad Audioljournal_title
Journal of the American Academy of Audiologyauthors
Summers V,Grant KW,Walden BE,Cord MT,Surr RK,Elhilali Mdoi
10.3766/jaaa.19.9.6subject
Has Abstractpub_date
2008-10-01 00:00:00pages
708-20issue
9eissn
1050-0545issn
2157-3107journal_volume
19pub_type
杂志文章abstract::This paper describes the listening habits and musical enjoyment of postlingually deafened adults who use cochlear implants. Sixty-five implant recipients (35 females, 30 males) participated in a survey containing questions about musical background, prior involvement in music, and audiologic success with the implant in...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:2000-07-01 00:00:00
abstract::In the last few years, a clinical consensus has emerged regarding the necessary components of an early management program for hearing-impaired children. Early detection of hearing loss, a parent-infant and supervised nursery program, and optimal amplification provisions are among these components. This paper explores ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract::Recent advances in endoscopic optics and miniature video camera technology have made video otoscopy (VO) accessible to audiologists in a practical way. Seven categories of VO applications are presented with clinical examples: (1) general examination of the earcanal and tympanic membrane, (2) physician communication/te...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1997-12-01 00:00:00
abstract::Crystal Device Integrity Testing System (CITS), the first commercially available testing system of its type, allows rapid assessment of cochlear implant function by measuring averaged electrode voltages-the scalp-recorded fields generated by electrode currents. We describe our experience performing routine integrity t...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.17.10.4
更新日期:2006-11-01 00:00:00
abstract::The amplitude modulation-following response (AMFR), an auditory evoked potential elicited by continuous amplitude-modulated tones, can be recorded for carrier frequencies across the audiometric range. AMFR thresholds (based on the amplitude spectra of the responses) have been found to closely follow behavioral thresho...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract:BACKGROUND:Prescriptive methods have been at the core of modern hearing aid fittings for the past several decades. Every decade or so, there have been revisions to existing methods and/or the emergence of new methods that become widely used. In 2001 Byrne et al provided a comparison of insertion gain for generic prescr...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.22.7.5
更新日期:2011-07-01 00:00:00
abstract::The tolerability of aided impulsive-type stimuli was investigated in a group of 13 hearing-impaired listeners. Two linear circuits (one with a class A and one with a class D output stage) and one adaptive frequency response (AFR) circuit (with a class D output stage) were investigated. In a three-way paired-comparison...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1994-09-01 00:00:00
abstract::In studies to date, the effectiveness of the directional microphone has been investigated independently of the signal processing scheme used in the hearing aid. In addition, the number and placement of the background noise speakers can create an advantage for a particular polar pattern (i.e., cardioid, supercardioid, ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:2001-11-01 00:00:00
abstract:BACKGROUND:The scalp-recorded frequency-following response (FFR) has been widely accepted in assessing the brain's processing of speech stimuli for people who speak tonal and nontonal languages. Characteristics of scalp-recorded FFRs with increasing number of sweeps have been delineated through the use of an exponentia...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.16135
更新日期:2018-02-01 00:00:00
abstract::This study examined the influence of technology, demographic factors, and prefitting expectations, attitudes, and adjustment to hearing loss on hearing aid outcome. Clients obtaining new hearing aids completed questionnaires measuring personal adjustment to hearing loss, expectations of and attitudes toward hearing ai...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:2001-02-01 00:00:00
abstract:BACKGROUND:Use of personal frequency modulated (FM) systems significantly improves speech recognition in noise for users of cochlear implants (CI). There are, however, a number of adjustable parameters of the cochlear implant and FM receiver that may affect performance and benefit, and there is limited evidence to guid...
journal_title:Journal of the American Academy of Audiology
pub_type: 临床试验,杂志文章
doi:10.3766/jaaa.19.8.2
更新日期:2008-09-01 00:00:00
abstract::The purpose of this study was to develop a test to assess the ability of persons with cochlear implants (CIs) to interpret musical signals. Up to this time, the main direction in outcomes studies of cochlear implantation has been in relation to speech recognition abilities. With improvement in CI hardware and processi...
journal_title:Journal of the American Academy of Audiology
pub_type: 临床试验,杂志文章
doi:10.3766/jaaa.19.1.6
更新日期:2008-01-01 00:00:00
abstract::This paper describes several techniques used to explore the role of cognitive factors in auditory performance in elderly adults. Two factors, cognitive slowing and age-related memory constraints, receive special attention. Assessing listeners' ability to report the content of time-compressed speech shows elderly adult...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1996-06-01 00:00:00
abstract::This case report describes a 44-yr-old female referred by an outside facility who presented with progressive hearing loss in her left ear. Magnetic resonance imaging (MRI) results were normal, but a battery of audiological tests suggested neural hearing loss in the left ear. Following diagnosis of left neural hearing ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.23.4.5
更新日期:2012-04-01 00:00:00
abstract::Hearing aid fitting for individuals with high-frequency impairment has been difficult because of the limited gain available at those frequencies. Special high-frequency emphasis hearing aids have been developed in an attempt to alleviate this problem. The insertion-gain responses and changes in speech-recognition perf...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1993-03-01 00:00:00
abstract::Auditory brainstem responses were measured in response to 1000-Hz tone bursts from 115 patients with sensorineural hearing loss, presumably of cochlear origin. Mean wave V latencies and variability were comparable to those observed in normal hearing subjects for similar stimuli. The range of interaural differences in ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1992-05-01 00:00:00
abstract::Normal and dyslexic right-handed children were assessed with three dichotic listening tests, the Dichotic Digits test, the Competing Words subtest of the SCAN, and the Dichotic Consonant-Vowel test. Performance was measured as both number and percentage of correct responses in the right and left ears. Laterality was d...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:2002-09-01 00:00:00
abstract:BACKGROUND:Children clinically diagnosed with auditory processing disorders (APDs) are often described as easily distracted and inattentive, leading some researchers to propose that APDs might be a consequence of underlying attention difficulties or a subtype of attention disorders. PURPOSE:The aim of this study was t...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.25.7.6
更新日期:2014-07-01 00:00:00
abstract::As humans, we hear the way we do because of at least three major forces. The first is phylogeny, the evolutionary changes in the auditory system since its beginnings. The second is embryology, the formation of the system in each individual. Finally, there is the interaction between the biologically determined mechanis...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章,评审
doi:
更新日期:1995-03-01 00:00:00
abstract:BACKGROUND:The visual speech signal can provide sufficient information to support successful communication. However, individual differences in the ability to appreciate that information are large, and relatively little is known about their sources. PURPOSE:Here a body of research is reviewed regarding the development ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章,评审
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abstract:BACKGROUND:The Four Alternative Auditory Feature test (FAAF) is a word-based closed-set speech recognition test. Because the original test materials were recorded in British English dialect, it is not appropriate for use in the United States. PURPOSE:The purpose of this study was to produce an American dialect FAAF (A...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.25.8.4
更新日期:2014-09-01 00:00:00
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journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1995-11-01 00:00:00
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pub_type: 临床试验,杂志文章
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abstract:BACKGROUND:Tinnitus can have a devastating impact on the quality of life of the sufferer. Although the mechanisms underpinning tinnitus remain uncertain, hearing loss is often associated with its onset, and hearing aids are among the most commonly used tools for its management. PURPOSE:To conduct a scoping review to e...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
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更新日期:2013-09-01 00:00:00
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journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
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更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Sloping hearing loss imposes limits on audibility for high-frequency sounds in many hearing aid users. Signal processing algorithms that shift high-frequency sounds to lower frequencies have been introduced in hearing aids to address this challenge by improving audibility of high-frequency sounds. PURPOSE:T...
journal_title:Journal of the American Academy of Audiology
pub_type: 临床试验,杂志文章
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更新日期:2017-10-01 00:00:00
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journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1999-07-01 00:00:00
abstract::Although it has been reported that smoking has deleterious effects on the middle ears of smokers, including their eustachian tubes, investigators have failed to find differences in the tympanometric characteristics of smokers and nonsmokers. In the present study, however, we found that the Valsalva-induced tympanometr...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1997-08-01 00:00:00
abstract:BACKGROUND:Untreated sensorineural hearing loss (SNHL) has been linked to depression, social isolation, anxiety, and a reduction in health-related quality of life (QoL), and is independently associated with cognitive decline. Only one in five persons with SNHL pursues amplification; 76-97% of those having hearing aids ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.18036
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journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
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