Recognition of spectrally shaped speech in speech-modulated noise: Effects of age, spectral shape, speech level, and vocoding

Daniel Fogerty; Jayne B. Ahlstrom; Judy R. Dubno

doi:10.1121/10.0017772

Recognition of spectrally shaped speech in speech-modulated noise: Effects of age, spectral shape, speech level, and vocoding

Daniel Fogerty, Jayne B. Ahlstrom, Judy R. Dubno

Speech and Hearing Science

Research output: Contribution to journal › Article › peer-review

Abstract

This study examined the recognition of spectrally shaped syllables and sentences in speech-modulated noise by younger and older adults. The effect of spectral shaping and speech level on temporal amplitude modulation cues was explored through speech vocoding. Subclinical differences in hearing thresholds in older adults were controlled using threshold matching noise. Older, compared to younger, adults had poorer recognition but similar improvements as the bandwidth of the shaping function increased. Spectral shaping may enhance the sensation level of glimpsed speech, which improves speech recognition in noise, even with mild elevations in hearing thresholds.

Original language	English (US)
Article number	044402
Journal	JASA Express Letters
Volume	3
Issue number	4
DOIs	https://doi.org/10.1121/10.0017772
State	Published - Apr 1 2023

Keywords

speech communication
phonetics
Auditory perception
Hearing impairment
hearing aids
speech recognition
Lombard effect
linear filters
amplitude modulation
statistical analysis

ASJC Scopus subject areas

Acoustics and Ultrasonics
Music
Arts and Humanities (miscellaneous)

Online availability

10.1121/10.0017772

https://asa.scitation.org/doi/10.1121/10.0017772

Library availability

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title = "Recognition of spectrally shaped speech in speech-modulated noise: Effects of age, spectral shape, speech level, and vocoding",

abstract = "This study examined the recognition of spectrally shaped syllables and sentences in speech-modulated noise by younger and older adults. The effect of spectral shaping and speech level on temporal amplitude modulation cues was explored through speech vocoding. Subclinical differences in hearing thresholds in older adults were controlled using threshold matching noise. Older, compared to younger, adults had poorer recognition but similar improvements as the bandwidth of the shaping function increased. Spectral shaping may enhance the sensation level of glimpsed speech, which improves speech recognition in noise, even with mild elevations in hearing thresholds.",

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note = "Blythe Vickery, Briemma Wilson, Erin Lynch, and Silvana Tellerico provided research assistance. This work was supported, in part, by the National Institutes of Health, National Institute on Deafness and Other Communication Disorders, Grant Nos. R01 DC015465 (D.F.) and R01 DC000184 (J.R.D.), the National Center for Advancing Translational Sciences of the National Institutes of Health (Grant No. UL1 TR001450). Some of the research was conducted in a facility constructed with support from the Research Facilities Improvement Program (Grant No. C06 RR 014516) from the National Institutes of Health/National Center for Research Resources. 1",

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AU - Dubno, Judy R.

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AB - This study examined the recognition of spectrally shaped syllables and sentences in speech-modulated noise by younger and older adults. The effect of spectral shaping and speech level on temporal amplitude modulation cues was explored through speech vocoding. Subclinical differences in hearing thresholds in older adults were controlled using threshold matching noise. Older, compared to younger, adults had poorer recognition but similar improvements as the bandwidth of the shaping function increased. Spectral shaping may enhance the sensation level of glimpsed speech, which improves speech recognition in noise, even with mild elevations in hearing thresholds.

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KW - phonetics

KW - Auditory perception

KW - Hearing impairment

KW - hearing aids

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KW - linear filters

KW - amplitude modulation

KW - statistical analysis

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Recognition of spectrally shaped speech in speech-modulated noise: Effects of age, spectral shape, speech level, and vocoding

Abstract

Keywords

ASJC Scopus subject areas

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