Number of subjects could not be achieved due to slow recruitment

The aim of this exploratory study is to evaluate the use and effectiveness of sound therapy for tinnitus relief in cochlear implant users with tinnitus. The sound therapy is a combination of tinnitus counselling and sound enrichment with the Cochlear Active Relief from Tinnitus (CART) firmware.

Inclusion Criteria:

• 18 years of age or older
• Self-reported tinnitus during standard Cochlear Implant (CI) activation for at least one month
• At least three months use of unilateral or bilateral Nucleus CI(s) driven by a CP900 Sound Processor. For bilateral use the most recently activated CI is used for at least three months
• Native speaker and fluency in the language used in the assessments (i.e. Dutch)

Exclusion Criteria:

• Additional handicaps that would prevent participation in evaluations
• History of psychiatric disorders or depression (on investigator's opinion)
• Unrealistic expectations as identified by the clinician on the part of the subject, regarding the possible benefits, risks and limitations that are inherent to the study
• Pulsatile or diagnosed objective / middle ear tinnitus