Effects of simulated spectral holes on speech intelligibility and spatial release from masking under binaural and monaural listening.

The Journal of the Acoustical Society of America
Soha N GaradatFan-Gang Zeng

Abstract

The possibility that "dead regions" or "spectral holes" can account for some differences in performance between bilateral cochlear implant (CI) users and normal-hearing listeners was explored. Using a 20-band noise-excited vocoder to simulate CI processing, this study examined effects of spectral holes on speech reception thresholds (SRTs) and spatial release from masking (SRM) in difficult listening conditions. Prior to processing, stimuli were convolved through head-related transfer-functions to provide listeners with free-field directional cues. Processed stimuli were presented over headphones under binaural or monaural (right ear) conditions. Using Greenwood's [(1990). J. Acoust. Soc. Am. 87, 2592-2605] frequency-position function and assuming a cochlear length of 35 mm, spectral holes were created for variable sizes (6 and 10 mm) and locations (base, middle, and apex). Results show that middle-frequency spectral holes were the most disruptive to SRTs, whereas high-frequency spectral holes were the most disruptive to SRM. Spectral holes generally reduced binaural advantages in difficult listening conditions. These results suggest the importance of measuring dead regions in CI users. It is possible that customized programmin...Continue Reading

References

Oct 1, 1992·The Journal of the Acoustical Society of America·W M RabinowitzP A Cuneo
Aug 1, 1992·Journal of Speech and Hearing Research·T S BellT D Trine
Dec 1, 1992·The Journal of the Acoustical Society of America·A W Bronkhorst, R Plomp
Jun 1, 1991·The Journal of the Acoustical Society of America·K W Grant, L D Braida
Aug 1, 1990·The Journal of the Acoustical Society of America·P F Assmann, Q Summerfield
Mar 1, 1990·Hearing Research·C A ProsenJ E Hawkins
Jun 1, 1990·The Journal of the Acoustical Society of America·D D Greenwood
Oct 1, 1989·The Journal of the Acoustical Society of America·A W Bronkhorst, R Plomp
Jan 1, 1988·The Journal of the Acoustical Society of America·S A GelfandS Miller
Apr 1, 1988·The Journal of the Acoustical Society of America·A W Bronkhorst, R Plomp
Jun 1, 1986·Journal of Speech and Hearing Research·R Plomp
Feb 1, 1986·The Journal of the Acoustical Society of America·J M Festen, R Plomp
Feb 1, 1971·The Journal of the Acoustical Society of America·H Levitt
Mar 1, 1971·The Journal of Laryngology and Otology·N W MacKeith, R R Coles
Sep 1, 1984·The Journal of the Acoustical Society of America·M Breeuwer, R Plomp
Sep 1, 1983·The Journal of the Acoustical Society of America·A J Duquesnoy
Oct 13, 1995·Science·R V ShannonM Ekelid
Feb 1, 1995·Perception & Psychophysics·R M WarrenB S Brubaker
Oct 1, 1993·The Journal of the Acoustical Society of America·M R Leek, V Summers
Aug 1, 1996·Journal of Speech and Hearing Research·R A DePaolisT Frank
Jul 1, 1997·The Journal of the Acoustical Society of America·R J van Hoesel, G M Clark
Oct 23, 1997·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·J B Nadol
Jun 25, 1998·Journal of Speech, Language, and Hearing Research : JSLHR·S P BaconD Y Montoya
Jan 28, 1999·The Journal of the Acoustical Society of America·J Vliegen, A J Oxenham
Mar 25, 1999·The Journal of the Acoustical Society of America·M D Arsenault, J L Punch
Mar 25, 1999·The Journal of the Acoustical Society of America·Q J Fu, R V Shannon
Jun 25, 1999·The Journal of the Acoustical Society of America·M L HawleyH S Colburn
May 2, 2000·The Journal of the Acoustical Society of America·R Drullman, A W Bronkhorst
Sep 21, 2000·British Journal of Audiology·B C MooreJ I Alcántara
Feb 24, 2001·The Journal of the Acoustical Society of America·M A MehrA Parkinson
Apr 17, 2001·The Journal of the Acoustical Society of America·G S Stickney, P F Assmann
Jun 2, 2001·The Journal of the Acoustical Society of America·R L FreymanK S Helfer
Mar 5, 2002·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Bruce J GantzJohn P Preece
Mar 9, 2002·Ear and Hearing·Richard S TylerMary W Lowder
Jul 27, 2002·The Journal of the Acoustical Society of America·Chandra S Throckmorton, Leslie M Collins
Aug 7, 2002·Journal of the Association for Research in Otolaryngology : JARO·Robert V ShannonDeniz Baskent
Sep 10, 2002·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Franz SchönJan Helms
Sep 24, 2002·The Journal of the Acoustical Society of America·Kalyan KasturiTony Spahr
Jan 28, 2003·Journal of Speech, Language, and Hearing Research : JSLHR·Judy R DubnoAmy R Horwitz

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Citations

Feb 23, 2012·The Journal of the Acoustical Society of America·Nathaniel A Whitmal, Kristina DeRoy
Jun 7, 2012·Journal of the American Academy of Audiology·Ruth Y LitovskySara Misurelli
Jul 12, 2012·The Journal of the Acoustical Society of America·Sara M Misurelli, Ruth Y Litovsky
Aug 17, 2012·The Journal of the Acoustical Society of America·Fei ChenYi Hu
Aug 9, 2013·Journal of Speech, Language, and Hearing Research : JSLHR·Fei ChenYi Hu
Feb 6, 2020·Journal of the Association for Research in Otolaryngology : JARO·Quentin MesnildreyOlivier Macherey

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