View clinical trials related to Hearing Loss.
Filter by:Phonak Hearing Devices pass through different development and study phases. At an early stage, feasibiltiy studies are conducted to investigate new algorithms, features and functions in an isolated manner. If the benefit is proven, their performance is then investigated regarding interpendency between all available algorithms, features and functions running in parallel in a hearing aid (pivotal/pre-validation studies) and, resulting from the pre-validation studies, they get optimized. Prior to product launch, the Phonak Hearing Systems get reviewed by a final quality control in terms of clinical trials. This is a pre-validation study, investigating improved algorithms, features, functions and wearing comfort. This will be a clinical investigation which will be conducted mono centric at Sonova AG Headquarters based in Stäfa (Switzerland).
The primary objective of this study is to obtain a greater understanding of the range in benefit from acoustic amplification combined with electric stimulation in cochlear implant recipients with low-frequency hearing who do not currently use the commercially approved Advanced Bionics Acoustic Earhook. The aims of this study are to 1) obtain subjective sound quality judgements of recorded speech and music samples, 2) assess vocal emotion perception, and 3) evaluate post-operative speech perception and sound field detection thresholds in CI recipients both with and without use of the acoustic ear hook.
Pilot study to test the feasibility of translating the English language into haptics (touch sensations)
The lyric hearing device is a commercially available device produced by Sonova, and designed to be used for extended periods of time. We further want to investigate the morphology of the tissue around the device at different periods of time after the device has been fitted and used for a while. An initial imaging of the tissue will be taken for baseline measurements. Questionnaires will also be used to assess patients satisfaction with the device and cognitive abilities.
Fifty adults with mild to moderately severe sensorineural hearing loss will be fit with hearing amplification using two adjustment techniques. For the "audiologist fitting" technique, a licensed audiologist will adjust the hearing device using the standard of care procedures which include adjustment and verification of output to match prescribed targets (NAL-NL2) and subsequent fine tuning to optimize adjustments based on participant feedback. The second technique is "user-adjustment" of the device consisting of adjustment to overall level, high-frequency boost, and low-frequency cut by the participant while listening to speech. A cross-over design will be used in which half the participants are initially fit using the audiologist technique and the other half are initially fit using the user self-adjustment technique. Following a seven-day field trial, participants will return to the lab and the aids will be reset use the other technique. Participants will be blinded to the condition. During each seven-day field trial, users will have access to a volume control, Following the end of the two trials, participants will return to the lab for outcome assessment.
Main objective: Investigate how the FineHearing strategy of the MED-EL cochlear implant can extract prosody based solely on the frequency of the voice fundamental (F0) in speech Secondary objectives: Evaluate the time evolution of the results of prosodic tests Evaluate the time evolution of the results of differential frequency threshold test Evaluate the time evolution of vocal audiometric tests in silence and noise Evaluate the correlation between prosodic test results and frequency differential threshold results
Cochlear implantation is performed in children with sensorineural hearing loss to restore hearing. Fifty percent of children with sensory neural hearing loss, who are candidates for cochlear implant, have vestibular (inner ear) dysfunction prior to surgery. Anatomically, the cochlea, semicircular canals, and otolith organs are located in close proximity in the inner ear and any procedure in the cochlea may affect the vestibular system, resulting in subsequent balance impairment. In addition, the process of implantation often results in further suppression of vestibular function necessary to develop normal balance. Vestibular dysfunction predisposes these children to balance impairments that can affect the normal development of gross motor skills such as sitting, standing, and walking. These balance and gross motor deficits may predispose the child to difficulties with safe community participation resulting in lower quality of life for the child and family. Evidence in the literature suggests that children with vestibular loss do not recover to the same levels as their peers, especially in the area of activities requiring vestibular input for balance. The purpose of this descriptive study is to examine balance, vestibular function, and gross motor skills in children following cochlear implantation over a period of one year. Children, ages 1 year to 5 years will be tested post cochlear implant , and at 6 and 12 months subsequent to initial testing, using clinically based tests of vestibular impairment (head impulse test, post rotary nystagmus or head shake nystagmus), balance (Pediatric Balance Scale) and gross motor skill development (Peabody Developmental Motor Scales, 2nd edition). Quality of life will be assessed using the Life-H (Assessment of Life Habits).
Main objectives - The first main objective is to evaluate the non-inferiority of the ADHEAR system compared to the PONTO 3 SUPERPOWER softband system in terms of average tonal gain. - The second main objective of the study is to evaluate the superiority of the ADHEAR system compared to the PONTO 3 SUPERPOWER softband system in terms of comfort. Secondary objectives - Evaluate skin reactions with ADHEAR and PONTO 3 SUPER POWER on softband. - Evaluate and compare perception in silence and noise with ADHEAR and PONTO 3 SUPER POWER on softband. - Evaluate and compare the subjective auditory perception with ADHEAR and PONTO 3 SUPER POWER on softband. - Evaluate the satisfaction and use of ADHEAR.
The investigators will examine the effectiveness of selected over-the-counter personal sound amplifiers in addressing functional hearing problems in middle-aged listeners with mild hearing loss. Many people are unlikely to pay several thousand dollars for hearing aids but they likely would be more willing to try a possible solution that is less expensive. When faced with counseling these individuals, audiologists are at a loss regarding whether or not to suggest that they try this type of technology, since there is virtually no research available to verify that these devices actually are helpful, particularly for individuals with mild hearing loss. The hypothesis being tested is that personal sound amplifiers can improve functional hearing and decrease cognitive load in complex auditory environments.
The purpose of this project is to validate a quick, easy-to-use and administer smartphone hearing-in-noise test. The Hearing-in-Noise Test (HINT) measures an individual's ability to hear speech in quiet and in noise. HINTs are traditionally done testing both ears together as binaural hearing ability is key in noisy settings and everyday, functional hearing. The app (called HearMe) can potentially be used to easily and quickly collect hearing-in-noise and speech-in-noise measurements. The smartphone app developed is a hearing-in-noise test that presents the subject with a series of stimuli consisting of a spoken three-digit sequence presented at a varying hearing-to-noise ratio. For each stimulus presentation, the user tap the three-digit sequence. The duration of the app is less than 3 minutes. For this project the investigators will test at least 50 subjects with hearing loss and 50 control subjects between the ages of 18-80. The subjects will be invited to take the app. The approach for this pilot study is to characterize hearing-in-noise thresholds (also referred to as a speech-reception threshold) as measured by the app in both subject groups, and relate it to the phenotype of each group as a preliminary evaluation of the app as well as a preliminary validation against their routinely collected measurements of hearing function (pure-tone audiometry thresholds). The study will assess the validity of the test construct in measuring hearing-in-noise thresholds, and serve as a foundation for further iterative designs of the app and future validation and characterization studies. This study seeks to validate a developed smartphone HINT on an initial cohort of patients and controls. It is anticipated that patients with hearing loss will display higher signal-to-noise ratio thresholds (as measured by the iPhone app) compared to controls.