Hearing Impairment Clinical Trial
Official title:
Methods of Wind Noise Suppression in Hearing Aids
Verified date | September 2011 |
Source | University of Iowa |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Federal Government |
Study type | Observational |
Wind-noise is highly disturbing to hearing impaired individuals wearing hearing aids who wish to participate in outdoor conversations where wind is present or during activities such as walking or running. In these situations, wind noise significantly reduces signal-to-noise ratio and, consequently, the intelligibility of speech and sounds may be significantly impaired. This negative effect is exacerbated with the use of directional microphone schemes in the hearing iads. The objective of this project is to determine the efficacy of the MH Acoustics' multi-microphone wind-noise reduction invention for the digital hearing aids market. MH Acoustics' wind noise reduction technology is unique since it provides instantaneous convergence while maintaining directionality of the microphone array. Current commercial technologies do not provide this feature. We are hypothesizing that, due to the design of the algorithm, speech perception ability and sound quality perception will be better than that available with traditional directional and/or omnidirectional microphone schemes in windy environments.
Status | Completed |
Enrollment | 60 |
Est. completion date | November 2009 |
Est. primary completion date | November 2009 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Both |
Age group | 18 Years to 75 Years |
Eligibility |
Inclusion Criteria: - Ages 18-75 - Normal or mild-to-moderate sensorineural hearing loss Exclusion Criteria: - Thresholds in excess of 75 dB HL |
Observational Model: Case-Crossover, Time Perspective: Prospective
Country | Name | City | State |
---|---|---|---|
United States | Wendell Johnson Center, University of Iowa | Iowa City | Iowa |
Lead Sponsor | Collaborator |
---|---|
University of Iowa | National Institute on Deafness and Other Communication Disorders (NIDCD) |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Speech Perception as measured by the Connected Speech Test (Cox et al) | Each of three follow-up visits | No | |
Secondary | Sound Quality | Each of three follow-up visits | No |
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