Resultados na percepção de fala após conversão do Spectra® para Freedom®

Abstract

® speech processor for cochlear implants was developed to improve how incoming acoustic sound is processed; this applies not only for new users, but also for previous generations of cochlear implants. Aim:To identify the contribution of this technology -the Nucleus 22 ® -on speech perception tests in silence and in noise, and on audiometric thresholds. Methods:A cross-sectional cohort study was undertaken. Seventeen patients were selected. The last map based on the Spectra ® was revised and optimized before starting the tests. Troubleshooting was used to identify malfunction. To identify the contribution of the Freedom ® technology for the Nucleus22 ® , auditory thresholds and speech perception tests were performed in free field in soundproof booths. Recorded monosyllables and sentences in silence and in noise (SNR = 0dB) were presented at 60 dBSPL. The nonparametric Wilcoxon test for paired data was used to compare groups. Results: Freedom® applied for the Nucleus22 ® showed a statistically significant difference in all speech perception tests and audiometric thresholds. Conclusion:The reedom ® technology improved the performance of speech perception and audiometric thresholds of patients with Nucleus 22 ® . ORIGINAL ARTICLEBraz J Otorhinolaryngol. 2012;78(2):11-5. BJORL

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