Voice Guard Processing Evaluation in a Cohort of Subjects Implanted With the Neuro Cochlear Implant System
Condition: Cochlear Implantation
Study type: Interventional

Summary: 
      The study aims to compare two different cochlear implant sound processing strategies. All the
      participants will start off with a sound processing strategy called the XDP (extended
      performance). At the 3 month stage, half of the participants would randomly be selected and
      offered a sound processing strategy called the Voice Guard. Following that, the sound
      processing strategies will be altered and evaluated every 3 months at the 6th, 9th and 12th
      month of cochlear implant use.
    

Detailed description: 
      Voice Guard and XDP are two different cochlear implant sound processing strategies. The Voice
      Guard sound coding strategy is adaptive in nature and can alter the output from the cochlear
      implant based on the levels of the listening environment. Hence, it can adapt to soft, medium
      or conversational and loud speech levels.The XDP on the other hand is not adaptive and cannot
      alter the cochlear implant output according to the levels of the listening environment.

      In the study we are hypothesising that the Voice Guard sound processing strategy will perform
      better than the XDP strategy for soft (40 dB SPL) and loud (85 dB SPL) speech input levels.
      Speech perception scores will be recorded at 40, 65 and 85 dB SPL and a cross over study
      design has been adopted.

      In addition, the efficacy of a cochlear implant sound reduction technique called Voice Track
      will also be evaluated. The Voice Track is designed to reduce the adverse effect of
      background noise on cochlear implant speech perception.
    

Intervention name(s): XDP sound processing strategy - Period 0; XDP sound processing strategy - Period 1; VG sound processing strategy - Period 1; XDP sound processing strategy - Period 2; VG sound processing strategy - Period 2; XDP sound processing strategy - Period 3; VG sound processing strategy - Period 3; Voice Track
Intervention type(s): Device; Device; Device; Device; Device; Device; Device; Device
Intervention description(s): XDP is a cochlear implant sound processing strategy that coverts environmental sound into meaningful information that a cochlear implant users' brain can comprehend.; XDP is a cochlear implant sound processing strategy that coverts environmental sound into meaningful information that a cochlear implant users' brain can comprehend.; Voice Guard is a cochlear implant sound processing strategy that coverts environmental sound into meaningful information that a cochlear implant users' brain can comprehend.; XDP is a cochlear implant sound processing strategy that coverts environmental sound into meaningful information that a cochlear implant users' brain can comprehend.; Voice Guard is a cochlear implant sound processing strategy that coverts environmental sound into meaningful information that a cochlear implant users' brain can comprehend; XDP is a cochlear implant sound processing strategy that coverts environmental sound into meaningful information that a cochlear implant users' brain can comprehend.; Voice Guard is a cochlear implant sound processing strategy that coverts environmental sound into meaningful information that a cochlear implant users' brain can comprehend; Voice Track is a cochlear implant noise cancellation system which is designed to reduce the adverse effect of background noise on speech perception through cochlear implants
Allocation: Randomized
Intervention model: Crossover Assignment
Intervention model description: A-B-A vs B-A-B
Masking: Single (Participant)
Primary purpose: Treatment
Keywords: Sound processing strategy