Effects of spectral flattening on vowel identification

Judy R. Dubno, Michael Dorman

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The identification of front vowels was studied in normal-hearing listeners using stimuli whose spectra had been altered to approximate the spectrum of vowels processed by auditory filters similar to those that might accompany sensorineural hearing loss. In the first experiment, front vowels were identified with greater than 95% accuracy when the first formant was specified in a normal manner and the higher frequency formants were represented by a broad, flat spectral plateau ranging from approximately 1600 to 3500 Hz. In the second experiment, the bandwidth of the first formant was systematically widened for stimuli with already flattened higher frequency formants. Normal vowel identification was preserved until the first formant was widened to six times its normal bandwidth. These results may account for the coexistence of abnormal vowel masking patterns (indicating flattened auditory spectra) and normal vowel recognition.

Original languageEnglish (US)
Pages (from-to)1503-1511
Number of pages9
JournalJournal of the Acoustical Society of America
Volume82
Issue number5
DOIs
StatePublished - 1987

Fingerprint

vowels
flattening
stimuli
bandwidth
auditory defects
hearing
masking
Formants
Spectrality
Hearing
plateaus
filters
Front Vowels
Stimulus
Formant Frequencies
Experiment

ASJC Scopus subject areas

  • Acoustics and Ultrasonics
  • Arts and Humanities (miscellaneous)

Cite this

Effects of spectral flattening on vowel identification. / Dubno, Judy R.; Dorman, Michael.

In: Journal of the Acoustical Society of America, Vol. 82, No. 5, 1987, p. 1503-1511.

Research output: Contribution to journalArticle

Dubno, Judy R. ; Dorman, Michael. / Effects of spectral flattening on vowel identification. In: Journal of the Acoustical Society of America. 1987 ; Vol. 82, No. 5. pp. 1503-1511.
@article{485ea2ea11b040a58478bce6159293b3,
title = "Effects of spectral flattening on vowel identification",
abstract = "The identification of front vowels was studied in normal-hearing listeners using stimuli whose spectra had been altered to approximate the spectrum of vowels processed by auditory filters similar to those that might accompany sensorineural hearing loss. In the first experiment, front vowels were identified with greater than 95{\%} accuracy when the first formant was specified in a normal manner and the higher frequency formants were represented by a broad, flat spectral plateau ranging from approximately 1600 to 3500 Hz. In the second experiment, the bandwidth of the first formant was systematically widened for stimuli with already flattened higher frequency formants. Normal vowel identification was preserved until the first formant was widened to six times its normal bandwidth. These results may account for the coexistence of abnormal vowel masking patterns (indicating flattened auditory spectra) and normal vowel recognition.",
author = "Dubno, {Judy R.} and Michael Dorman",
year = "1987",
doi = "10.1121/1.395194",
language = "English (US)",
volume = "82",
pages = "1503--1511",
journal = "Journal of the Acoustical Society of America",
issn = "0001-4966",
publisher = "Acoustical Society of America",
number = "5",

}

TY - JOUR

T1 - Effects of spectral flattening on vowel identification

AU - Dubno, Judy R.

AU - Dorman, Michael

PY - 1987

Y1 - 1987

N2 - The identification of front vowels was studied in normal-hearing listeners using stimuli whose spectra had been altered to approximate the spectrum of vowels processed by auditory filters similar to those that might accompany sensorineural hearing loss. In the first experiment, front vowels were identified with greater than 95% accuracy when the first formant was specified in a normal manner and the higher frequency formants were represented by a broad, flat spectral plateau ranging from approximately 1600 to 3500 Hz. In the second experiment, the bandwidth of the first formant was systematically widened for stimuli with already flattened higher frequency formants. Normal vowel identification was preserved until the first formant was widened to six times its normal bandwidth. These results may account for the coexistence of abnormal vowel masking patterns (indicating flattened auditory spectra) and normal vowel recognition.

AB - The identification of front vowels was studied in normal-hearing listeners using stimuli whose spectra had been altered to approximate the spectrum of vowels processed by auditory filters similar to those that might accompany sensorineural hearing loss. In the first experiment, front vowels were identified with greater than 95% accuracy when the first formant was specified in a normal manner and the higher frequency formants were represented by a broad, flat spectral plateau ranging from approximately 1600 to 3500 Hz. In the second experiment, the bandwidth of the first formant was systematically widened for stimuli with already flattened higher frequency formants. Normal vowel identification was preserved until the first formant was widened to six times its normal bandwidth. These results may account for the coexistence of abnormal vowel masking patterns (indicating flattened auditory spectra) and normal vowel recognition.

UR - http://www.scopus.com/inward/record.url?scp=0023448778&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0023448778&partnerID=8YFLogxK

U2 - 10.1121/1.395194

DO - 10.1121/1.395194

M3 - Article

C2 - 3693692

AN - SCOPUS:0023448778

VL - 82

SP - 1503

EP - 1511

JO - Journal of the Acoustical Society of America

JF - Journal of the Acoustical Society of America

SN - 0001-4966

IS - 5

ER -