The purpose of this study is to evaluate the effect of the sound processor upgrade from the C-DACS investigational device Freedom sound processor to the Nucleus® CP810 sound processor for the Codacs™ system on the speech reception threshold in noise, to evaluate the usability of the Codacs™ Fitting Software, to evaluate the quality of life with the Nucleus® CP810 Sound Processor for the Codacs™ system, to collect long term data, to evaluate the acceptance criteria of the postoperative Codacs™ system test and to evaluate the usability of the Codacs™ Test System.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
15
Nucleus® CP810 Sound Processor for the Codacs™ system (CE marked) and Codacs™ Test System (CE marked)
Hannover Medical School
Hanover, Lower Saxony, Germany
Aided Speech Reception Threshold (SRT) in Noise Measured by Signal to Noise Ratio for 50% Correct Scores With the Oldenburger Sentence Test
The Oldenburger Sentence test is an adaptive speech in noise test with a fixed noise level of typically 65 decibel (dB) sound pressure level (SPL) and a varying speech level, depending on how many words in a sentence were repeated correctly by the subject. The outcome of this test is the signal-to-noise ratio (SNR) at which 50% of words in the sentence list were correctly repeated by the subject. The SRT in noise with the Freedom sound processor at the initial study visit was compared to the SRT in noise with the CP810 at the 3 months follow-up at different measurement conditions. Speech and noise coming from the front (S0N0)- Speech coming from the front and noise coming from the implanted side (S0N90)- Everyday program (E): omnidirectional microphone- Noise program (N): directional microphone- Freedom Sound Processor (Freedom)- CP810 Sound Processor (CP810).
Time frame: 3 months after initial upgraded fitting
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.