Evidence map›Paper›PMID 28972471›Full record

ArticleJournal of the American Academy of Audiology2017

Listening Effort and Speech Recognition with Frequency Compression Amplification for Children and Adults with Hearing Loss.

Marc A Brennan, Dawna Lewis, Ryan McCreery, Judy Kopun, Joshua M Alexander

Abstract read
In one paragraph

Article in Journal of the American Academy of Audiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Trial
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Marc A BrennanAmplification and Perception Laboratory, Boys Town National Research Hospital, Omaha, NE.
Dawna LewisAmplification and Perception Laboratory, Boys Town National Research Hospital, Omaha, NE.
Ryan McCreeryAmplification and Perception Laboratory, Boys Town National Research Hospital, Omaha, NE.
Judy KopunAmplification and Perception Laboratory, Boys Town National Research Hospital, Omaha, NE.
Joshua M AlexanderEar Laboratory, Purdue University, West Lafayette, IN.

Funding

The Impact of Mild Hearing Loss on Auditory Perception in Complex EnvironmentsP20GM109023 · NIGMS · FATHER FLANAGAN'S BOYS' HOME · PI LEIBOLD, LORI J. · 2014 to 2023
$23.4M
Research Synergy CoreP30DC004662 · NIDCD · FATHER FLANAGAN'S BOYS' HOME · PI MOELLER, MARY PAT, MORLEY, BARBARA J · 2001 to 2015
$5.9M
OPTIMIZING AMPLIFICATION FOR INFANTS AND YOUNG CHILDRENR01DC004300 · NIDCD · FATHER FLANAGAN'S BOYS'HOME · PI JESTEADT, WALT · 1999 to 2014
$5.3M
COMPLEX LISTENING SKILLS IN SCHOOL-AGE HARD OF HEARING CHILDRENR01DC013591 · NIDCD · FATHER FLANAGAN'S BOYS' HOME · PI MCCREERY, RYAN W. · 2014 to 2023
$4.8M
NIDCD NIH HHS P30 DC004662NIDCD NIH HHS R01 DC004300NIDCD NIH HHS R01 DC013591NIGMS NIH HHS P20 GM109023
6 · The paper itself

Abstract

backgroundNonlinear frequency compression (NFC) can improve the audibility of high-frequency sounds by lowering them to a frequency where audibility is better; however, this lowering results in spectral distortion. Consequently, performance is a combination of the effects of increased access to high-frequency sounds and the detrimental effects of spectral distortion. Previous work has demonstrated positive benefits of NFC on speech recognition when NFC is set to improve audibility while minimizing distortion. However, the extent to which NFC impacts listening effort is not well understood, especially for children with sensorineural hearing loss (SNHL). PURPOSE: To examine the impact of NFC on recognition and listening effort for speech in adults and children with SNHL. RESEARCH

designWithin-subject, quasi-experimental study. Participants listened to amplified nonsense words that were (1) frequency-lowered using NFC, (2) low-pass filtered at 5 kHz to simulate the restricted bandwidth (RBW) of conventional hearing aid processing, or (3) low-pass filtered at 10 kHz to simulate extended bandwidth (EBW) amplification. STUDY SAMPLE: Fourteen children (8-16 yr) and 14 adults (19-65 yr) with mild-to-severe SNHL.

interventionParticipants listened to speech processed by a hearing aid simulator that amplified input signals to fit a prescriptive target fitting procedure. DATA COLLECTION AND ANALYSIS: Participants were blinded to the type of processing. Participants' responses to each nonsense word were analyzed for accuracy and verbal-response time (VRT; listening effort). A multivariate analysis of variance and linear mixed model were used to determine the effect of hearing-aid signal processing on nonsense word recognition and VRT.

resultsBoth children and adults identified the nonsense words and initial consonants better with EBW and NFC than with RBW. The type of processing did not affect the identification of the vowels or final consonants. There was no effect of age on recognition of the nonsense words, initial consonants, medial vowels, or final consonants. VRT did not change significantly with the type of processing or age.

conclusionBoth adults and children demonstrated improved speech recognition with access to the high-frequency sounds in speech. Listening effort as measured by VRT was not affected by access to high-frequency sounds.

Indexed as

Hearing AidsSpeech AcousticsAdolescentAdultAgedChildHearingHearing Loss, SensorineuralHumansMiddle AgedSignal-To-Noise RatioSpeech Perception

Identifiers

PMID28972471
PMCPMC5634744

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.