Speech Enhancement for Cochlear Implant Recipients.

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dc.contributor.ISNI0000 0001 1604 5383 (Hansen, JHL)
dc.contributor.VIAF19968651 (Hansen, JHL)
dc.contributor.authorWang, Dongmei
dc.contributor.authorHansen, John H. L.
dc.contributor.utdAuthorWang, Dongmei
dc.contributor.utdAuthorHansen, John H. L.
dc.date.accessioned2019-05-31T20:04:58Z
dc.date.available2019-05-31T20:04:58Z
dc.date.created2018-04-20
dc.descriptionFull text access from Treasures at UT Dallas is restricted to current UTD affiliates.
dc.description.abstractIn this study, a single microphone speech enhancement algorithm is proposed to improve speech intelligibility for cochlear implant recipients. The proposed algorithm combines harmonic structure estimation with a subsequent statistical based speech enhancement stage. Traditional minimum mean square error (MMSE) based speech enhancement methods typically focus on statistical characteristics of the noise and track the noise variance along time dimension. The MMSE method is usually effective for stationary noise, but not as useful for non-stationary noise. To address both stationary and non- stationary noise, the current proposed method not only tracks noise over time, but also estimates the noise structure along the frequency dimension by exploiting the harmonic structure of the target speech. Next, the estimated noise is employed in the traditional MMSE framework for speech enhancement. To evaluate the proposed speech enhancement solution, a formal listener evaluation was performed with 6 cochlear implant recipients. The results suggest that a substantial improvement in speech intelligibility performance can be gained for cochlear implant recipients in noisy environments.
dc.description.departmentErik Jonsson School of Engineering and Computer Science
dc.description.departmentCenter for Robust Speech Systems
dc.description.sponsorshipNIH/NIDCD Grant No. R01 DC010494.
dc.identifier.bibliographicCitationO'Connell, Margaret A., Chandramallika Basak, Dongmei Wang, and John H. L. Hansen. 2018. "Speech enhancement for cochlear implant recipients" Journal of the Acoustical Society of America 143(4), doi:10.1121/1.5031112
dc.identifier.issn1520-8524
dc.identifier.urihttps://hdl.handle.net/10735.1/6520
dc.identifier.volume114
dc.relation.urihttp:dx.doi.org/10.1121/1.5031112
dc.rights©2018 Acoustical Society of America
dc.source.journalThe Journal of the Acoustical Society of America
dc.subject-
dc.subjectSpeech, Intelligibility of
dc.subjectCochlear implants
dc.subjectNoise
dc.titleSpeech Enhancement for Cochlear Implant Recipients.
dc.type.genrearticle

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