What question did this study set out to answer?

To assess the effects of a commercial hearing aid's digital noise reduction (DNR) scheme across different activation onset times in laboratory and field settings.

January 1, 2008International Journal of Audiology

Digital noise reduction: Outcomes from laboratory and field studies

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Authors

RBRuth A. BentlerUniversity of Iowa YWYu-Hsiang WuUniversity of Iowa JKJerrica KettelSt. Louis Children's Hospital

Discussion

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Implication

Randomized double-blind trial reveals digital noise reduction improves listening ease and reduces sound aversiveness in hearing aid users, indicating subjective benefits without speech gains.

Key Points

To assess the effects of a commercial hearing aid's digital noise reduction (DNR) scheme across different activation onset times in laboratory and field settings.
Conducted a double-blind, randomized trial evaluating 25 subjects across four conditions: three DNR onset times (4, 8, and 16 seconds) and a DNR-off control.
Assigned a fifth condition granting users access to three selectable onset memories, with each trial including an at-home period followed by laboratory tests.
Speech perception and sound quality ratings showed no significant differences between DNR-on and DNR-off conditions, regardless of visual cue presence.
Ease of listening was rated significantly better with DNR-on across all onset times compared to DNR-off, though the 4-second onset yielded significantly poorer listening comfort than the 8-second onset or DNR-off.
Self-report assessments demonstrated significantly higher sound aversiveness when DNR was disabled compared to baseline pre-test scores.

Cite This Study

Bentler et al. (2008) studied this question.

synapsesocial.com/papers/6a03ae2d2ef79526a5a9c4c0 https://doi.org/10.1080/14992020802033091

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Implication

Randomized double-blind trial reveals digital noise reduction improves listening ease and reduces sound aversiveness in hearing aid users, indicating subjective benefits without speech gains.

Digital noise reduction: Outcomes from laboratory and field studies

Discussion

Member takes

Implication

Key Points

Cite This Study

Digital noise reduction: Outcomes from laboratory and field studies

Discussion

Member takes

Implication

Key Points

Cite This Study

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