In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 141, No. 5_Supplement ( 2017-05-01), p. 4023-4023
Abstract:
Noise and reverberation affect speech intelligibility and increase listening effort. The impact is more severe for hearing-impaired listeners than for normal-hearing listeners and might lead to less social interactions, and reduced quality of life. While lab experiments are well controlled to get reliable outcomes, every-day listening situations are far more complex. Obtaining objective data of acoustical characteristics outside a laboratory is difficult, given the required equipment and its proper handling as well as privacy concerns emerging from audio recordings in a non-regulated and populated environment. Therefore, we developed a privacy-aware smartphone-based system that allows for long-term ecological momentary assessment. This system combines descriptions of the environment and subjective ratings on predefined scales with objective features derived from the acoustical signal. In a field study, forty-seven elderly listeners used the system for about four consecutive days. Results show that the listeners spend most of their time in environments with quite high signal-to-noise ratios resulting in high speech intelligibility ratings and low listening effort. More demanding situations are comparatively rare and include restaurant or car environments. The presentation summarizes the study results and discusses their contribution to further developments of today’s lab experiments towards more natural listening settings.
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
2017
detail.hit.zdb_id:
1461063-2
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