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The interpretation of speech reception threshold data in normal-hearing and hearing-impaired listeners: II. Fluctuating noise.
J Acoust Soc Am. 2013 May; 133(5):3004-15.JA

Abstract

Following previous work [Smits and Festen. (2011). J. Acoust. Soc. Am. 130, 2987-2998] involving the interpretation of speech reception threshold (SRT) data in steady-state noise, the present study considers fluctuating noise. Whereas the SIIsteady function [i.e., the speech intelligibility index (SII) against SNR in steady-state noise] can be approximated by a simple linear function going from 0 to 1 between SNR = -15 dB to +15 dB, the SIIfluc function is a function over a broader range than 30 dB and its maximum lies at a SNR higher than +15 dB. The difference in shape between the SIIsteady and SIIfluc functions has several implications. It predicts a reduction in fluctuating masker benefit (FMB), or even a negative FMB, for higher SNRs for normal-hearing listeners. Experimental data confirm this prediction. Much of the reduction in FMB for hearing-impaired listeners may be attributed to the higher SRTs in steady-state noise for these listeners.

Authors+Show Affiliations

Department of Otolaryngology/Audiology and EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands. c.smits@vumc.nlNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

23654404

Citation

Smits, Cas, and Joost M. Festen. "The Interpretation of Speech Reception Threshold Data in Normal-hearing and Hearing-impaired Listeners: II. Fluctuating Noise." The Journal of the Acoustical Society of America, vol. 133, no. 5, 2013, pp. 3004-15.
Smits C, Festen JM. The interpretation of speech reception threshold data in normal-hearing and hearing-impaired listeners: II. Fluctuating noise. J Acoust Soc Am. 2013;133(5):3004-15.
Smits, C., & Festen, J. M. (2013). The interpretation of speech reception threshold data in normal-hearing and hearing-impaired listeners: II. Fluctuating noise. The Journal of the Acoustical Society of America, 133(5), 3004-15. https://doi.org/10.1121/1.4798667
Smits C, Festen JM. The Interpretation of Speech Reception Threshold Data in Normal-hearing and Hearing-impaired Listeners: II. Fluctuating Noise. J Acoust Soc Am. 2013;133(5):3004-15. PubMed PMID: 23654404.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The interpretation of speech reception threshold data in normal-hearing and hearing-impaired listeners: II. Fluctuating noise. AU - Smits,Cas, AU - Festen,Joost M, PY - 2013/5/10/entrez PY - 2013/5/10/pubmed PY - 2013/12/18/medline SP - 3004 EP - 15 JF - The Journal of the Acoustical Society of America JO - J Acoust Soc Am VL - 133 IS - 5 N2 - Following previous work [Smits and Festen. (2011). J. Acoust. Soc. Am. 130, 2987-2998] involving the interpretation of speech reception threshold (SRT) data in steady-state noise, the present study considers fluctuating noise. Whereas the SIIsteady function [i.e., the speech intelligibility index (SII) against SNR in steady-state noise] can be approximated by a simple linear function going from 0 to 1 between SNR = -15 dB to +15 dB, the SIIfluc function is a function over a broader range than 30 dB and its maximum lies at a SNR higher than +15 dB. The difference in shape between the SIIsteady and SIIfluc functions has several implications. It predicts a reduction in fluctuating masker benefit (FMB), or even a negative FMB, for higher SNRs for normal-hearing listeners. Experimental data confirm this prediction. Much of the reduction in FMB for hearing-impaired listeners may be attributed to the higher SRTs in steady-state noise for these listeners. SN - 1520-8524 UR - https://www.unboundmedicine.com/medline/citation/23654404/The_interpretation_of_speech_reception_threshold_data_in_normal_hearing_and_hearing_impaired_listeners:_II__Fluctuating_noise_ L2 - https://doi.org/10.1121/1.4798667 DB - PRIME DP - Unbound Medicine ER -