Hearing Loss
Conditions
Brief summary
This study will compare far-field speech understanding in noise using a hearing aid alone, with using a hearing aid plus a Roger remote microphone. It will also compare the HA+Roger mic to two other manufacturers' hearing aids plus remote mic systems in the same condition.
Detailed description
This study will recruit 15-20 hearing impaired experienced hearing aid adult users. Participants will be fit with three sets of hearing aids (Phonak devices, plus two competitor devices) and the associated remote microphone from each manufacturer. Speech perception will be measured using the validated AZ Bio test, and will be given in both the hearing aid alone condition, as well as the hearing aid plus remote microphone condition. The participant will be seated in the center of a room approximately 7m by 5.25m with a loudspeaker approximately 3 m away, at 0 degree azimuth. Four loudspeakers will also be placed in the corners of the room. For the quiet condition, target speech will be presented from the loudspeaker in front of the participant, for the noise condition speech will be presented from the front with speech babble presented from each of the corner loudspeakers. The speech understanding score in both quiet and in noise will be measured for hearing aids alone, and hearing aids plus the appropriate compatible remote microphone.
Interventions
Sponsors
Sonova AG
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
SINGLE (Subject)
Masking description
Participants will be blinded as to which devices they are fitted with during the testing.
Eligibility
Sex/Gender
ALL
Age
18 Years to 95 Years
Healthy volunteers
No
Inclusion criteria
* Bilateral sensorineural hearing loss * Experienced bilateral hearing aid users * Fluent in English, ability to read and write in English * Able to produce a reliable study result * Willing to comply with all study requirements
Exclusion criteria
* Limited/inconsistent/no prior use of hearing aids * Self-reported ear-related pathology(including but not limited to: otorrhea within the past 90 days, dizziness, sudden onset or worsening hearing loss within the past 90 days, otalgia) * Visible deformity of the ear * Chronic, severe tinnitus * Unilateral hearing loss * Single sided deafness
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| AZ Bio Sentence Test | Visit 2, Day 2 of study | Validated test of speech intelligibility in which participants repeat as many words as they can from a presented list of 20 sentences. Words correct are calculated as a percent correct from the total number of words presented. Higher percentages mean better speech intelligibility. |
Countries
United States
Outcome results
None listed