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

Research output: Contribution to journalArticlepeer-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 languageEnglish (US)
Article number044402
JournalJASA Express Letters
Volume3
Issue number4
DOIs
StatePublished - 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)

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