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Titre : | Hearing-aid users voices: A factor that could affect directional benefit (2013) |
Auteurs : | Yu-Hsiang Wu ; Elizabeth Stangl ; Ruth A. Bentler |
Type de document : | Article |
Dans : | International Journal of Audiology IJA (Vol.52, n°11, November 2013) |
Langues: | Anglais |
Résumé : | Objective: Backward-facing directional processing (Back-DIR) is an algorithm that employs an anti-cardioid directivity pattern to enhance speech arriving from behind the listener. An experiment that was originally designed to evaluate Back-DIR, together with its follow-up experiment, are reported to illustrate how hearing-aid users voices could affect directional benefit. Design: Speech recognition performance was measured in a speech-180°/noise-0° configuration, with aids programmed to Back-DIR enabled or omnidirectional processing. In the original experiment, the conventional hearing-in-noise test (HINT) was used, wherein listeners repeated heard sentences. In the follow-up experiment, a modified HINT was used, wherein a carrier phrase was presented before each sentence. Study sample: Fifteen adults with sensorineural hearing loss participated in both experiments. Results: Significant Back-DIR benefit (relative to omnidirectional processing) was observed in the follow-up experiment, while not in the original experiment. Conclusions: In the original experiment, hearing aids were affected by listeners voices such that Back-DIR was not always activated when the target speech was presented. In the follow-up experiment, listeners voice effects were eliminated by the carrier phrase activating Back-DIR before the sentences were presented. The results suggest that the effect of hearing-aid technologies is highly dependent on the characteristics of listening conditions. |
Accès : | Contactez la bibliothèque d'Ixelles si le lien vers la ressource électronique ne fonctionne plus |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.tandfonline.com/doi/full/10.3109/14992027.2013.802381 |
Exemplaires (1)
Cote | Support | Localisation | Section | Disponibilité |
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International journal of audiology IJA. Vol.52, n°11 (November 2013) | Périodique papier | Ixelles | Rez | Consultation sur place uniquement Exclu du prêt |