Article,
Hearing aid delay in open-fit devices: Preferred sound quality in listeners with normal and impaired hearing
Affiliations
- [1] WS Audiology, Nymøllevej 6, 3540 Lynge, Denmark [NORA names: Denmark; Europe, EU; Nordic; OECD];
- [2] University of Southern Denmark [NORA names: SDU University of Southern Denmark; University; Denmark; Europe, EU; Nordic; OECD]
Abstract
A key factor influencing sound quality in open-fit digital hearing aids is the processing delay. So far, the delay limit needed for ensuring optimal (rather than tolerable) sound quality has not been established. Using a realistic hearing aid simulator, the current study investigated the relationship between preferred sound quality and five processing delays ranging from 0.5 to 10 ms in listeners with normal and impaired hearing. The listeners with normal hearing showed a strong preference for the shortest delay. For the listeners with impaired hearing, participants with mild hearing losses below 2 kHz also preferred the shortest delay.
Keywords
AIDS,
aid simulator,
delay,
delay limit,
devices,
digital hearing aids,
hearing,
hearing aid simulator,
hearing aids,
hearing loss,
impaired hearing,
limitations,
listeners,
loss,
mild hearing loss,
normal hearing,
open-fit,
participants,
preferences,
process,
processing delay,
quality,
relationship,
simulation,
sound,
sound quality,
study