The effect of enhancing temporal periodicity cues on Cantonese tone recognition by cochlear implantees.
Objectives: This study investigates the efficacy of a cochlear implant (CI) processing method that enhances temporal periodicity cues of speech. Design: Subjects participated in word and tone identification tasks. Two processing conditions - the conventional advanced combination encoder (ACE) and to...
| Publicado en: | International Journal of Audiology Vol. 53; no. 8; pp. 546 - 558 |
|---|---|
| Autores principales: | , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Aug2014
|
| 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=103971928&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 103971928 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14992027 JW2 jtl: International Journal of Audiology issn: 14992027 maglogo: Y pubinfo: dt: Aug2014 vid: 53 iid: 8 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 103971928 96955498 10.3109/14992027.2014.893374 NLM24694089 103971928 ppf: 546 ppct: 12 formats: fmt: @attributes: type: P tig: atl: The effect of enhancing temporal periodicity cues on Cantonese tone recognition by cochlear implantees. aug: au: Lee, Tan Yu, Shing Yuan, Meng Wong, Terence Ka Cheong Kong, Ying-Yee affil: Department of Electronic Engineering, The Chinese University of Hong Kong, China sug: subj: Cochlear Implant Speech Perception Pitch Perception Human Chinese Persons Classification Audiology Methods ab: Objectives: This study investigates the efficacy of a cochlear implant (CI) processing method that enhances temporal periodicity cues of speech. Design: Subjects participated in word and tone identification tasks. Two processing conditions - the conventional advanced combination encoder (ACE) and tone-enhanced ACE were tested. Test materials were Cantonese disyllabic words recorded from one male and one female speaker. Speech-shaped noise was added to clean speech. The fundamental frequency information for periodicity enhancement was extracted from the clean speech. Electrical stimuli generated from the noisy speech with and without periodicity enhancement were presented via direct stimulation using a Laura 34 research processor. Subjects were asked to identify the presented word. Study sample: Seven post-lingually deafened native Cantonese-speaking CI users. Results: Percent correct word, segmental structure, and tone identification scores were calculated. While word and segmental structure identification accuracy remained similar between the two processing conditions, tone identification in noise was better with tone-enhanced ACE than with conventional ACE. Significant improvement on tone perception was found only for the female voice. Conclusions: Temporal periodicity cues are important to tone perception in noise. Pitch and tone perception by CI users could be improved when listeners received enhanced temporal periodicity cues. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|