Comparison of the body-worn CIS-PRO+ and the behind-the-ear-worn TEMPO+ cochlear implant systems in Finnish-speaking adult CI users: any differences in results with experienced listeners?

Authors: Tuulikki Valimaa, Taina1; Juhani Lopponen, Heikki2

Source: Acta Oto-Laryngologica, Volume 128, Number 9, 2008 , pp. 984-991(8)

Publisher: Informa Healthcare

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Conclusion. The results indicate that the need for upgrading the processor and/or speech coding strategy should be considered individually, if the processor and coding strategy are functioning properly and a good level of speech perception has been achieved. Objectives. Our aim was to study the intra-individual differences of the body-worn CIS-PRO+ and the behind-the-ear-worn TEMPO+ cochlear implant systems used in the MED-EL Combi40/Combi40+ implants. Subjects and methods. The hearing level, sentence, word and phoneme recognition of eight adult subjects were determined in an ABA study design. Additionally, a self-assessment questionnaire was used. Mean scores and 95% confidence intervals, and individual scores were analysed. Results. The subjects tended to score slightly better on word and phoneme recognition with CIS-PRO+ and CIS strategy than with TEMPO+ and CIS+, but there were no statistically significant differences. Subjectively the participants ranked speech perception and discussion in noise to be slightly easier with TEMPO+ and CIS+. Six of the eight subjects preferred TEMPO+ and CIS+ and two of eight preferred CIS-PRO+ with CIS or number-of-maxima.

Keywords: Speech coding strategy; speech perception; speech processor; subjective opinions

Document Type: Research Article


Affiliations: 1: Department of Finnish, Information Studies and Logopedics, University of Oulu, Finland 2: Department of Otorhinolaryngology, Oulu University Hospital, Finland,Department of Otorhinolaryngology, Institute of Clinical Medicine, University of Kuopio, Finland

Publication date: January 1, 2008

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