| Titre : | Modulation masking release using the Brazilian-Portuguese HINT: Psychometric functions and the effect of speech time compression (2015) |
| Auteurs : | John H. Grose ; Silvana Griz ; Fernando A. Pacifico |
| Type de document : | Article |
| Dans : | International Journal of Audiology IJA (Vol.54, n°1-12, January-December 2015) |
| Article en page(s) : | p. 274-281 |
| Langues: | Anglais |
| Descripteurs : |
HE Vinci Psychométrie ; Reconnaissance de la paroleAutres descripteurs Modulation |
| Résumé : |
Objective: The Brazilian-Portuguese hearing in noise test (HINT) was used to investigate the benefit to speech recognition of listening in a fluctuating background. The goal was to determine whether modulation masking release varied as a function of the speech-to-masker ratio at threshold. Speech-to-masker ratio at threshold was manipulated using the novel approach of adjusting the time-compression of the speech. Design: Experiment 1 measured performance-intensity functions in both a steady speech-shaped noise masker and a 10-Hz square-wave modulated masker. Experiment 2 measured speech-to-masker ratios at threshold as a function of time-compression of the speech (0, 33, and 50%) in both maskers. Study sample: Participants were normal-hearing adults who were native speakers of Brazilian Portuguese (Experiment 1: N = 10; Experiment 2: N = 30). Results: The slope of the performance-intensity function was shallower in the modulated masker than in the steady masker for both words and sentences. Thresholds increased with increasing time-compression in both maskers, but more markedly in the modulated masker, resulting in reduced modulation masking release with increasing time-compression. Conclusions: Speech-to-masker ratio at threshold varies with time-compression of speech. The results are relevant to the issue of whether degree of masker modulation benefit depends on speech-to-masker ratio at threshold.
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| 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/10.3109/14992027.2014.986692?needAccess=true |
Exemplaires (1)
| Cote | Support | Localisation | Section | Disponibilité |
|---|---|---|---|---|
| International journal of audiology IJA. Vol.54, n°1-12 (January-December 2015) | Périodique papier | Ixelles | Rez | Consultation sur place uniquement Exclu du prêt |
