Development of the Continuous Number Identification Test (CNIT): feasibility of dynamic assessment of speech intelligibility.
Objective: The present study was motivated by a need for a speech intelligibility test capable of indexing dynamic changes in the environment and adaptive processing in hearing aids. The Continuous Number Identification Test (CNIT) was developed to meet these aims. Design: From one location in the f...
| Published in: | International Journal of Audiology Vol. 59; no. 6; pp. 434 - 443 |
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| Main Authors: | , , , |
| Format: | equations & formulas research tables/charts Journal Article |
| Published: |
Taylor & Francis Ltd
Jun2020
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=144260998&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 144260998 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14992027 JW2 jtl: International Journal of Audiology issn: 14992027 maglogo: Y pubinfo: dt: Jun2020 vid: 59 iid: 6 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 144260998 144260998 145598534 144260998 10.1080/14992027.2020.1718782 144260998 ppf: 434 ppct: 9 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Development of the Continuous Number Identification Test (CNIT): feasibility of dynamic assessment of speech intelligibility. aug: au: Ozmeral, Erol J. Hoover, Eric C. Gabbidon, Patricia Eddins, David A. affil: Department of Communication Sciences and Disorders, University of South Florida, Tampa, FL, USA sug: subj: Speech Intelligibility Evaluation Clinical Assessment Tools Instrument Construction Hearing Aids Evaluation Speech Perception Speech Reception Threshold Test Psychometrics Male Female Adolescence Adult Logistic Regression Repeated Measures Two-Way Analysis of Variance Post Hoc Analysis Funding Source Adolescent: 13-18 years Adult: 19-44 years Male Female ab: Objective: The present study was motivated by a need for a speech intelligibility test capable of indexing dynamic changes in the environment and adaptive processing in hearing aids. The Continuous Number Identification Test (CNIT) was developed to meet these aims. Design: From one location in the free field, speech was presented in noise (∼2 words/s) with a 100-ms inter-word interval. On average, every fourth word was a target digit and all other words were monosyllabic words. Non-numeric words had a fixed presentation level such that the dominant signal-to-noise-ratio (SNR) was held at +6 dB SNR relative to background maskers. To prevent ceiling effects, however, targets were presented at a user-specific SNR, determined by an initial adaptive-tracking procedure that estimated the 79.4% speech reception threshold. Study sample: Ten normal-hearing listeners participated. Results: The CNIT showed comparable psychometric qualities of other established speech tests for long time scales (Exp. 1). Target-location changes did not affect performance on the CNIT (Exp. 2), but the test did show high temporal resolution in assessing sudden changes to SNR (Exp. 3). Conclusions: The CNIT is highly customisable, and the initial experiments tested feasibility of its primary features which set it apart from currently available speech-in-noise tests. pubtype: Academic Journal doctype: equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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