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More info
You can access this
clinical trial
if you have
and you are
over 18
years old
The phase for this study is not defined.
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The purpose

Despite modern hearing aids such as cochlear implants, speech comprehension during telephone conversation is challenging for hearing-impaired patients. On the one hand, conventional telephones transmit a limited spectrum of the acoustic signal compared to a normal conversation. On the other hand, lip reading during a phone call is generally not possible. As a result, speech comprehension during a telephone conversation is reduced. In previous studies, the authors demonstrated an improved speech comprehension for hearing-impaired patients using voice-over internet protocol (VoIP) telephony (Skype) compared to conventional telephony. New bluetooth-enabled hearing aids allow for direct transmission of the telephone signal to the hearing device. As the direct transmission is expected to improve signal-to-noise ratio, speech comprehension is tested in patients with bluetooth-enabled hearing aids for 4 different scenarios: 1. conventional telephony without bluetooth device 2. conventional telephony with bluetooth device 3. VoIP telephony without bluetooth device 4. VoIP telephony with bluetooth device

Provided treatments

  • Device: Conventional acoustic telephony
  • Device: Conventional bluetooth telephony
  • Device: VoIP acoustic telephony
  • Device: VoIP bluetooth telephony

Locations near you

Unfortunately, there are no recruiting locations near you. Please check the list with all locations below.
Tris trial is registered with FDA with number: NCT03005912. The sponsor of the trial is University Hospital Inselspital, Berne and it is looking for 10 volunteers for the current phase.
Official trial title:
Clinical Single Centre Cohort Study Comparing Telephone vs. Voice Over Internet Protocol (VoIP) Speech Comprehension for Acoustical and Bluetooth Speech Signal Transmission in Hearing Aided Subjects.