Effects of Expanding Envelope Fluctuations on Consonant Perception in Hearing-Impaired Listeners

Trends in Hearing
Alan WiinbergTorsten Dau

Abstract

This study examined the perceptual consequences of three speech enhancement schemes based on multiband nonlinear expansion of temporal envelope fluctuations between 10 and 20 Hz: (a) "idealized" envelope expansion of the speech before the addition of stationary background noise, (b) envelope expansion of the noisy speech, and (c) envelope expansion of only those time-frequency segments of the noisy speech that exhibited signal-to-noise ratios (SNRs) above -10 dB. Linear processing was considered as a reference condition. The performance was evaluated by measuring consonant recognition and consonant confusions in normal-hearing and hearing-impaired listeners using consonant-vowel nonsense syllables presented in background noise. Envelope expansion of the noisy speech showed no significant effect on the overall consonant recognition performance relative to linear processing. In contrast, SNR-based envelope expansion of the noisy speech improved the overall consonant recognition performance equivalent to a 1- to 2-dB improvement in SNR, mainly by improving the recognition of some of the stop consonants. The effect of the SNR-based envelope expansion was similar to the effect of envelope-expanding the clean speech before the additi...Continue Reading

References

Feb 1, 1978·The Journal of the Acoustical Society of America·R Plomp
Mar 1, 1991·The Journal of the Acoustical Society of America·P M Clarkson, S F Bahgat
Oct 1, 1990·The Journal of the Acoustical Society of America·J M Festen, R Plomp
Sep 1, 1989·Journal of Speech and Hearing Research·R L Freyman, G P Nerbonne
Oct 13, 1995·Science·R V ShannonM Ekelid
Feb 1, 1994·The Journal of the Acoustical Society of America·R DrullmanR Plomp
Dec 1, 1996·Journal of Speech and Hearing Research·R L Freyman, G P Nerbonne
May 21, 1999·The Journal of the Acoustical Society of America·R A van BuurenT Houtgast
Feb 28, 2004·Hearing Research·Frédéric ApouxChristian Lorenzi
Jun 17, 2005·The Journal of the Acoustical Society of America·Li XuBryan E Pfingst
Feb 15, 2007·The Journal of the Acoustical Society of America·Bryce E Lobdell, Jont B Allen
Oct 12, 2007·The Journal of the Acoustical Society of America·Li Xu, Yunfang Zheng
Jun 6, 2008·The Journal of the Acoustical Society of America·Marion S Régnier, Jont B Allen
Dec 10, 2008·The Journal of the Acoustical Society of America·Michael A StoneBrian C J Moore
May 19, 2009·Trends in Amplification·Andrea Simpson
Apr 8, 2010·The Journal of the Acoustical Society of America·Feipeng LiJont B Allen
Sep 8, 2011·The Journal of the Acoustical Society of America·Søren Jørgensen, Torsten Dau
May 23, 2012·Journal of Speech, Language, and Hearing Research : JSLHR·Danielle GlistaJacob Sulkers
Aug 17, 2012·The Journal of the Acoustical Society of America·Michael A StoneBrian C J Moore
Jul 19, 2013·The Journal of the Acoustical Society of America·Søren JørgensenTorsten Dau
Jun 9, 2014·The Journal of the Acoustical Society of America·Alexandre Chabot-LeclercTorsten Dau
Dec 4, 2014·International Journal of Audiology·Rachel J Ellis, Kevin J Munro
Mar 20, 2015·The Journal of the Acoustical Society of America·Søren JørgensenTorsten Dau
Oct 3, 2015·The Journal of the Acoustical Society of America·Johannes Zaar, Torsten Dau
Aug 1, 2016·The Journal of the Acoustical Society of America·Alexandre Chabot-LeclercTorsten Dau
Dec 3, 2016·The Journal of the Acoustical Society of America·Josef Schlittenlacher, Brian C J Moore

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BETA
IEC

Software Mentioned

R
MATLAB
lsmeans
VUSOFT
lme4

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