| Titre : | Measuring the effect of adaptive directionality and split processing on noise acceptance at multiple input levels (2023) |
| Auteurs : | Francis Kuk, Auteur ; Christopher Slugocki, Auteur ; Neal Davis-Ruperto, Auteur ; Petri Korhonen, Auteur |
| Type de document : | Article |
| Dans : | International Journal of Audiology IJA (Vol.62, no. 1, Janvier 2023) |
| Article en page(s) : | p. 21-29 |
| Note générale : | https://doi-org.ezproxy.vinci.be/10.1080/14992027.2021.2022789 |
| Langues: | Anglais |
| Descripteurs : |
HE Vinci Acceptable Noise Level (ANL) ; Mesure acoustique ; Traitement audiologique |
| Résumé : |
Objective
This study used the multi-level Tracking of Noise Tolerance (TNT) test to compare Augmented Focus (AF) or split processing over non-AF processing with adaptive directionality (non-AF-dirm) and with an omnidirectional microphone (non-AF-omni). Design This was a single-blind, within-subject repeated measures design. Study sample Nineteen listeners with a mild-to-moderate hearing loss. The listeners’ task was to determine their tolerable noise level (TNL) in the sound-field at four fixed speech levels (i.e. 62, 68, 75, and 85 dB SPL) in the unaided condition and the different aided conditions. The speech passages were presented from 0° while a continuous speech-shaped noise was presented from 180°. Each condition was tested twice, each in a different counterbalanced order. Results AF improved TNL by an average of 2.9 dB over non-AF-dirm. Adaptive directionality improved the aided TNL by 4.7 dB over the non-AF-omni condition. The unaided TNL was similar to the aided non-AF-omni TNL. Whereas a stable TNL was reached in 20–30 s for non-AF-dirm, it took AF Conclusions This study shows that AF allowed 2.9 dB of signal-to-noise ratio (SNR) improvement over that of non-AF-dirm and 7.6 dB over the aided non-AF-omni condition. |
| Disponible en ligne : | Oui |
| En ligne : | https://login.ezproxy.vinci.be/login?url=https://www-tandfonline-com/doi/full/10.1080/14992027.2021.2022789 |
Bibliothèques HE Vinci
