View clinical trials related to Hearing Loss.
Filter by:Overhearing is important for vocabulary learning and speech and language development in young children. However, contemporary hearing aids are generally unable to provide adequate access to low-level auditory inputs from multiple talkers at a distance to capitalize on overhearing. A recent investigation by Jace Wolfe and colleagues showed that, even when aided, children with hearing loss had significantly poorer speech recognition at 40, 50 and 60 dBA compared to children with normal hearing. Furthermore, they showed that increasing hearing aid gain for very low-level inputs produced a statistically significant improvement in syllable-final plural recognition and a non-significant trend toward better monosyllabic word recognition at very low presentation levels. Additional research is needed to document low-level speech recognition ability of children with hearing loss as well as the potential benefit or detriment of increasing hearing aid gain for low-level inputs. A novel hearing aid technology known as Soft Speech Enhancer has been shown improve low-level speech perception in adults with hearing loss; however, the effect of Speech Enhancer on speech recognition in children is not yet known and will be evaluated.
Participants with hearing loss and Tinnitus will wear hearing aids with amplification-only or with an added sound, and have their tinnitus level evaluated before and after intervention.
This clinical study aims to investigate speech performance in quiet with an OTE Sound Processor with modified firmware compared with the commercially available CP1150. The study also investigates CP1110 and CP1150 with Forward Focus.
This clinical investigation will extend the evaluation of perception of speech in different listening environments with hearing aids available on the market (from Phonak). The clinical investigation is divided in three parts addressing different challenges met by hearing aid users.
The purpose of the study is to evaluate the efficacy of a prototype app for the self-fitting of hearing aids.
New and experienced hearing aid users will be fit with two hearing devices. One will be labeled as an OTC (Over-The-Counter) device, the other will be labeled as a Prescriptive (i.e. professionally fit) device. Both devices will be generically programmed for a mild to moderate hearing loss. An objective speech in noise test will be completed with both devices.
Two groups of hearing aid candidates will be fit with extended wear technology. One group will be fit with the commercially available models, and the other group will be fit with either the commercially available model or a new model with different fitting characteristic. After an appropriate trial period, the success rate of each group will be determined by the desire to purchase devices.
This study is to evaluate new approaches to device fitting and diagnostics for cochlear implant users. The evaluation can be performed in the laboratory in an acute session or in real world environments with take-home device use to further validate their benefits. Each feature will be tested in a sub-study specific to that hearing care model. On average, each sub-study is expected to include approximately 20 subjects.
The aim of this study is to understand how audiometric, cognitive and electrophysiological results relate to sentence recognition score in adults using currently a Nucleus cochlear implant.
The purpose of this study is to investigate several approaches for improving spatial perception and speech intelligibility in multitalker listening situations for hearing-aid users. The hypotheses are that spatial perception and speech intelligibility will be improved by (1) increased high-frequency audibility, (2) speech envelope enhancement, and/or (3) appropriate sound image externalization.