Reducing power consumption in the cochlear implant is crucial to the development of future smaller sound processors. The commercial MP3000 sound coding strategy has been shown to be more efficient in power consumption to the standard ACE strategy. However in order to develop smaller sound processors, further battery life power savings are required. The aim of this study is to evaluate three experimental sets of MP3000 parameter sets, compared against the default ACE program. In the background for each of the four strategies, experimental noise reduction programs (SpatialNR and NR3) will also be in use. In an additional phase of the study, low stimulation rate ACE programs will also be evaluated against the default stimulation rate.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
32
The HEARing CRC
Melbourne, Victoria, Australia
Word recognition scores in quiet
Word recognition scores in quiet for i) MP3000 strategy compared to default ACE strategy and ii) lower rate stimulation for ACE strategy
Time frame: Testing over 18 weeks
Sentence recognition scores in quiet
Sentence recognition scores in quiet for i) MP3000 strategy compared to ACE strategy and ii) lower rate stimulation for ACE strategy
Time frame: Testing over 18 weeks
Fundamental frequency (F0) discrimination
F0 discrimination for MP3000 strategy compared to the ACE baseline
Time frame: Testing over 18 weeks
Speech intelligibility and helpfulness subjective ratings
For MP3000 strategy compared to the default ACE baseline
Time frame: Testing over 18 weeks
Sentence in noise scores
Comparison of MP3000 program with Spatial NR and NR3 enabled versus disabled.
Time frame: Testing over 18 weeks
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