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Phoneme recognition in modulated maskers by normal-hearing and aided hearing-impaired listeners.
J Acoust Soc Am. 2012 Sep; 132(3):1646-54.JA

Abstract

This study measured the influence of masker fluctuations on phoneme recognition. The first part of the study compared the benefit of masker modulations for consonant and vowel recognition in normal-hearing (NH) listeners. Recognition scores were measured in steady-state and sinusoidally amplitude-modulated noise maskers (100% modulation depth) at several modulation rates and signal-to-noise ratios. Masker modulation rates were 4, 8, 16, and 32 Hz for the consonant recognition task and 2, 4, 12, and 32 Hz for the vowel recognition task. Vowel recognition scores showed more modulation benefit and a more pronounced effect of masker modulation rate than consonant scores. The modulation benefit for word recognition from other studies was found to be more similar to the benefit for vowel recognition than that for consonant recognition. The second part of the study measured the effect of modulation rate on the benefit of masker modulations for vowel recognition in aided hearing-impaired (HI) listeners. HI listeners achieved as much modulation benefit as NH listeners for slower masker modulation rates (2, 4, and 12 Hz), but showed a reduced benefit for the fast masker modulation rate of 32 Hz.

Authors+Show Affiliations

Scientific and Clinical Studies Section, Audiology and Speech Center, Walter Reed National Military Medical Center, Bethesda, Maryland 20889, USA. s.a.phatak@gmail.comNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

22978893

Citation

Phatak, Sandeep A., and Ken W. Grant. "Phoneme Recognition in Modulated Maskers By Normal-hearing and Aided Hearing-impaired Listeners." The Journal of the Acoustical Society of America, vol. 132, no. 3, 2012, pp. 1646-54.
Phatak SA, Grant KW. Phoneme recognition in modulated maskers by normal-hearing and aided hearing-impaired listeners. J Acoust Soc Am. 2012;132(3):1646-54.
Phatak, S. A., & Grant, K. W. (2012). Phoneme recognition in modulated maskers by normal-hearing and aided hearing-impaired listeners. The Journal of the Acoustical Society of America, 132(3), 1646-54. https://doi.org/10.1121/1.4742718
Phatak SA, Grant KW. Phoneme Recognition in Modulated Maskers By Normal-hearing and Aided Hearing-impaired Listeners. J Acoust Soc Am. 2012;132(3):1646-54. PubMed PMID: 22978893.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phoneme recognition in modulated maskers by normal-hearing and aided hearing-impaired listeners. AU - Phatak,Sandeep A, AU - Grant,Ken W, PY - 2012/9/18/entrez PY - 2012/9/18/pubmed PY - 2013/2/6/medline SP - 1646 EP - 54 JF - The Journal of the Acoustical Society of America JO - J Acoust Soc Am VL - 132 IS - 3 N2 - This study measured the influence of masker fluctuations on phoneme recognition. The first part of the study compared the benefit of masker modulations for consonant and vowel recognition in normal-hearing (NH) listeners. Recognition scores were measured in steady-state and sinusoidally amplitude-modulated noise maskers (100% modulation depth) at several modulation rates and signal-to-noise ratios. Masker modulation rates were 4, 8, 16, and 32 Hz for the consonant recognition task and 2, 4, 12, and 32 Hz for the vowel recognition task. Vowel recognition scores showed more modulation benefit and a more pronounced effect of masker modulation rate than consonant scores. The modulation benefit for word recognition from other studies was found to be more similar to the benefit for vowel recognition than that for consonant recognition. The second part of the study measured the effect of modulation rate on the benefit of masker modulations for vowel recognition in aided hearing-impaired (HI) listeners. HI listeners achieved as much modulation benefit as NH listeners for slower masker modulation rates (2, 4, and 12 Hz), but showed a reduced benefit for the fast masker modulation rate of 32 Hz. SN - 1520-8524 UR - https://www.unboundmedicine.com/medline/citation/22978893/Phoneme_recognition_in_modulated_maskers_by_normal_hearing_and_aided_hearing_impaired_listeners_ L2 - https://doi.org/10.1121/1.4742718 DB - PRIME DP - Unbound Medicine ER -