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Titre : | A Laboratory Evaluation of Contextual Factors Affecting Ratings of Speech in Noise: Implications for Ecological Momentary Assessment (2019) |
Auteurs : | Lorienne M. Jenstad ; Lise Gillen ; Gurjit Singh ; et al. |
Type de document : | Article |
Dans : | Ear and hearing (Vol. 40, n°4, Juillet-aout 2019) |
Article en page(s) : | p. 823-832 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Aides auditives ; Mesure acoustique ; SmartphoneAutres descripteurs Qualite du son percu |
Résumé : |
Objectives: As hearing aid outcome measures move from retrospective to momentary assessments, it is important to understand how contextual factors influence subjective ratings. Under laboratory-controlled conditions, we examined whether subjective ratings changed as a function of acoustics, response timing, and task variables.
Design: Eighteen adults (age 21 to 85 years; M = 51.4) with sensorineural hearing loss were fitted with hearing aids. Sentences in noise were presented at 3 overall levels (50, 65, and 80 dB SPL) and 3 signal to noise ratios (0, +5, and +10 dB signal to noise ratio [SNR]). Listeners rated three sound quality dimensions (intelligibility, noisiness, and loudness) under four experimental conditions that manipulated timing and task focus. Results: The quality ratings changed as the acoustics changed: intelligibility ratings increased with input level (p 0.1). Conclusions: The findings of this laboratory study provide evidence to support the conclusion that group-mean listener ratings of loudness, noisiness, and intelligibility change in predictable ways as level and SNR of the speech in noise stimulus are altered. They also provide weak evidence to support the conclusion that timing of the ratings (during or immediately after sound exposure) can affect noisiness ratings under certain conditions, but no evidence to support the conclusion that timing affects other quality ratings. There is also no evidence to support the conclusion that quality ratings are influenced by the presence of, or focus on, a secondary nonauditory task of the type used here. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&D=yrovftu&AN=00003446-201907000-00006 |