Audibility-based predictions of speech recognition for children and adults with normal hearing

Ryan W McCreery, Patricia G. Stelmachowicz

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

This study investigated the relationship between audibility and predictions of speech recognition for children and adults with normal hearing. The Speech Intelligibility Index (SII) is used to quantify the audibility of speech signals and can be applied to transfer functions to predict speech recognition scores. Although the SII is used clinically with children, relatively few studies have evaluated SII predictions of children's speech recognition directly. Children have required more audibility than adults to reach maximum levels of speech understanding in previous studies. Furthermore, children may require greater bandwidth than adults for optimal speech understanding, which could influence frequency-importance functions used to calculate the SII. Speech recognition was measured for 116 children and 19 adults with normal hearing. Stimulus bandwidth and background noise level were varied systematically in order to evaluate speech recognition as predicted by the SII and derive frequency-importance functions for children and adults. Results suggested that children required greater audibility to reach the same level of speech understanding as adults. However, differences in performance between adults and children did not vary across frequency bands.

Original languageEnglish (US)
Pages (from-to)4070-4081
Number of pages12
JournalJournal of the Acoustical Society of America
Volume130
Issue number6
DOIs
StatePublished - Dec 1 2011

Fingerprint

speech recognition
hearing
Hearing
Speech Intelligibility
intelligibility
predictions
bandwidth
Speech Recognition
Prediction
background noise
transfer functions
stimuli
Noise

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

Cite this

Audibility-based predictions of speech recognition for children and adults with normal hearing. / McCreery, Ryan W; Stelmachowicz, Patricia G.

In: Journal of the Acoustical Society of America, Vol. 130, No. 6, 01.12.2011, p. 4070-4081.

Research output: Contribution to journalArticle

@article{ca325a8ed6cc413b952b0fd341f53f8e,
title = "Audibility-based predictions of speech recognition for children and adults with normal hearing",
abstract = "This study investigated the relationship between audibility and predictions of speech recognition for children and adults with normal hearing. The Speech Intelligibility Index (SII) is used to quantify the audibility of speech signals and can be applied to transfer functions to predict speech recognition scores. Although the SII is used clinically with children, relatively few studies have evaluated SII predictions of children's speech recognition directly. Children have required more audibility than adults to reach maximum levels of speech understanding in previous studies. Furthermore, children may require greater bandwidth than adults for optimal speech understanding, which could influence frequency-importance functions used to calculate the SII. Speech recognition was measured for 116 children and 19 adults with normal hearing. Stimulus bandwidth and background noise level were varied systematically in order to evaluate speech recognition as predicted by the SII and derive frequency-importance functions for children and adults. Results suggested that children required greater audibility to reach the same level of speech understanding as adults. However, differences in performance between adults and children did not vary across frequency bands.",
author = "McCreery, {Ryan W} and Stelmachowicz, {Patricia G.}",
year = "2011",
month = "12",
day = "1",
doi = "10.1121/1.3658476",
language = "English (US)",
volume = "130",
pages = "4070--4081",
journal = "Journal of the Acoustical Society of America",
issn = "0001-4966",
publisher = "Acoustical Society of America",
number = "6",

}

TY - JOUR

T1 - Audibility-based predictions of speech recognition for children and adults with normal hearing

AU - McCreery, Ryan W

AU - Stelmachowicz, Patricia G.

PY - 2011/12/1

Y1 - 2011/12/1

N2 - This study investigated the relationship between audibility and predictions of speech recognition for children and adults with normal hearing. The Speech Intelligibility Index (SII) is used to quantify the audibility of speech signals and can be applied to transfer functions to predict speech recognition scores. Although the SII is used clinically with children, relatively few studies have evaluated SII predictions of children's speech recognition directly. Children have required more audibility than adults to reach maximum levels of speech understanding in previous studies. Furthermore, children may require greater bandwidth than adults for optimal speech understanding, which could influence frequency-importance functions used to calculate the SII. Speech recognition was measured for 116 children and 19 adults with normal hearing. Stimulus bandwidth and background noise level were varied systematically in order to evaluate speech recognition as predicted by the SII and derive frequency-importance functions for children and adults. Results suggested that children required greater audibility to reach the same level of speech understanding as adults. However, differences in performance between adults and children did not vary across frequency bands.

AB - This study investigated the relationship between audibility and predictions of speech recognition for children and adults with normal hearing. The Speech Intelligibility Index (SII) is used to quantify the audibility of speech signals and can be applied to transfer functions to predict speech recognition scores. Although the SII is used clinically with children, relatively few studies have evaluated SII predictions of children's speech recognition directly. Children have required more audibility than adults to reach maximum levels of speech understanding in previous studies. Furthermore, children may require greater bandwidth than adults for optimal speech understanding, which could influence frequency-importance functions used to calculate the SII. Speech recognition was measured for 116 children and 19 adults with normal hearing. Stimulus bandwidth and background noise level were varied systematically in order to evaluate speech recognition as predicted by the SII and derive frequency-importance functions for children and adults. Results suggested that children required greater audibility to reach the same level of speech understanding as adults. However, differences in performance between adults and children did not vary across frequency bands.

UR - http://www.scopus.com/inward/record.url?scp=84858299692&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84858299692&partnerID=8YFLogxK

U2 - 10.1121/1.3658476

DO - 10.1121/1.3658476

M3 - Article

VL - 130

SP - 4070

EP - 4081

JO - Journal of the Acoustical Society of America

JF - Journal of the Acoustical Society of America

SN - 0001-4966

IS - 6

ER -