Effect of frequency boundary assignment on vowel recognition with the Nucleus 24 ACE Speech Coding Strategy.
Two speech processor programs (MAPs) differing only in electrode frequency boundary assignments were created for each of eight Nucleus 24 Cochlear Implant recipients. The default MAPs used typical frequency boundaries, and the experimental MAPs reassigned one additional electrode to vowel formant re...
| Publicado en: | Journal of the American Academy of Audiology Vol. 15; no. 4; pp. 281 - 300 |
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| Autores principales: | , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Thieme Medical Publishing Inc.
Apr2004
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106677711&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106677711 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10500545 9OC jtl: Journal of the American Academy of Audiology issn: 10500545 maglogo: Y pubinfo: dt: Apr2004 vid: 15 iid: 4 pid: 2811 pub: Thieme Medical Publishing Inc. place: New York, New York artinfo: ui: 106677711 106677711 13821186 2004208445 10.3766/jaaa.15.4.3 NLM15239202 106677711 ppf: 281 ppct: 19 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Effect of frequency boundary assignment on vowel recognition with the Nucleus 24 ACE Speech Coding Strategy. aug: au: Fourakis MS Hawks JW Holden LK Skinner MW Holden TA affil: Ohio State University sug: subj: Cochlear Implant Evaluation Speech Perception Adult Aged Analysis of Variance Comparative Studies Consonants Descriptive Statistics Equipment Design Female Funding Source Male Middle Age Pilot Studies Questionnaires Repeated Measures Signal Processing, Computer Assisted Speech Discrimination Tests Vowels Word Lists Human Adult: 19-44 years Aged: 65+ years Middle Aged: 45-64 years Female Male ab: Two speech processor programs (MAPs) differing only in electrode frequency boundary assignments were created for each of eight Nucleus 24 Cochlear Implant recipients. The default MAPs used typical frequency boundaries, and the experimental MAPs reassigned one additional electrode to vowel formant regions. Four objective speech tests and a questionnaire were used to evaluate speech recognition with the two MAPs. Results for the closed-set vowel test and the formant discrimination test showed small but significant improvement in scores with the experimental MAP. Differences for the Consonant-Vowel Nucleus-Consonant word test and closed-set consonant test were nonsignificant. Feature analysis revealed no significant differences in information transmission. Seven of the eight subjects preferred the experimental MAP, reporting louder, crisper, and clearer sound. The results suggest that Nucleus 24 recipients should be given an opportunity to compare a MAP that assigns more electrodes in vowel formant regions with the default MAP to determine which provides the most benefit in everyday life. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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