Abstract:
OBJECTIVE:This study aimed to provide guidelines to optimize perception of soft speech and speech in noise for Advanced Bionics cochlear implant (CI) users. DESIGN:Three programs differing in T-levels were created for ten subjects. Using the T-level setting that provided the lowest FM-tone, sound-field threshold levels for each subject, three additional programs were created with input dynamic range (IDR) settings of 50, 65 and 80 dB. STUDY SAMPLE:Subjects were postlinguistically deaf adults implanted with either the Clarion CII or 90K CI devices. RESULTS:Sound-field threshold levels were lowest with T-levels set higher than 10% of M-levels and with the two widest IDRs. Group data revealed significantly higher scores for CNC words presented at a soft level with an IDR of 80 dB and 65 dB compared to 50 dB. Although no significant group differences were seen between the three IDRs for sentences in noise, significant individual differences were present. CONCLUSIONS:Setting Ts higher than the manufacturer's recommendation of 10% of M-levels and providing IDR options can improve overall speech perception; however, for some users, higher Ts and wider IDRs may not be appropriate. Based on the results of the study, clinical programming recommendations are provided.
journal_name
Int J Audioljournal_title
International journal of audiologyauthors
Holden LK,Reeder RM,Firszt JB,Finley CCdoi
10.3109/14992027.2010.533200subject
Has Abstractpub_date
2011-04-01 00:00:00pages
255-69issue
4eissn
1499-2027issn
1708-8186journal_volume
50pub_type
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