90004035

open access

Version of Record

Relationship between listening difficulty rating and objective measures in reverberant and noisy sound fields for young adults and elderly persons

English (英語)

Journal of the Acoustical Society of America

131(6)

4596-4605

Acoustical Society of America

2012-06

2017-06-26

Listening difficulty ratings [Morimoto et al., J. Acoust. Soc. Am. 116, 1607-1613 (2004)] were obtained for 20 young adult listeners and 34 elderly listeners in reverberant and noisy sound fields simulated in an anechoic room. The listening difficulty ratings were compared with acoustical objective measures. The results and analyses showed the following: (i) The correlation between listening difficulty ratings and the revised speech transmission index (STIr), and that for the useful-detrimental ratio (U-50) were high, regardless of the age of the listeners. (ii) STIr and U-50 need to be increased by 0.12 and 4.2 dB, respectively, to equalize the listening difficulty ratings for the elderly listeners with those for the young listeners. (iii) The estimation accuracies for STIr and U-50 can be improved by calculating them with the L-eq of background noise linearly increased by 4 to 10 dB, which depends on the age of the listeners and the objective measures. However, the improvement was not statistically significant for the elderly listeners.

学術雑誌論文

©2012 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in Journal of the Acoustical Society of America 131(6), 4596-4605 and may be found at http://dx.doi.org/10.1121/1.4714790