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Titre : | Development of the Continuous Number Identification Test (CNIT): feasibility of dynamic assessment of speech intelligibility (2020) |
Auteurs : | Erol J. Ozmeral ; Eric Hoover ; Patricia Gabbidon |
Type de document : | Article |
Dans : | International Journal of Audiology IJA (Vol. 59, n°6, Juin 2020) |
Article en page(s) : | p. 434-442 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Aide auditive ; Compréhension dans le bruit ; Perception de la parole |
Résumé : |
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. |
Accès : | Contactez la bibliothèque d'Ixelles si le lien vers la ressource électronique ne fonctionne plus |
Disponible en ligne : | Oui |
En ligne : | https://www-tandfonline-com.ezproxy.vinci.be/doi/pdf/10.1080/14992027.2020.1718782?needAccess=true |