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Title
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Better speech recognition in noise with the fine structure processing coding strategy
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Author
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Abstract
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| Background: Recently, a new speech coding strategy named fine structure processing (FSP) has been launched. Methods: 32 subjects, all users of the MED-EL PULSARCI100 system, have been switched over from a TEMPO+ to an OPUS 2 speech processor. In 22 subjects, the FSP strategy could be implemented (FSP group), in 10 patients not (high-definition continuous interleaved sampling, HDCIS, group). Subjects were tested with the Tempo+ (CIS+) just before switch-over and after 12 months of OPUS 2 (FSP/HDCIS) use. Performance with FSP/HDCIS was tested at switch-over, and after 1, 3, 6 and 12 months. A sentence-in-noise test and a Speech Spatial and Qualities of Hearing Scale (SSQ) questionnaire were assessed at each test interval. Results: In the FSP group, the speech reception threshold shows a deterioration of 3.3 dB (n.s.) at the acute switch-over interval, but a significant improvement over time (p < 0.001) with a final benefit of 6.5 dB after 12 months of FSP use. A significant improvement over time can also be seen on the spatial subscore of the SSQ questionnaire (p = 0.009). No significant differences could be seen in the HDCIS group. Conclusion: The results show that by enhancing fine structure coding in the lower frequencies, as implemented in the FSP coding strategy, speech perception in noise can be enhanced. |
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Language
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English
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Source (journal)
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ORL: journal for oto-rhino-laryngology and its related specialties
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Publication
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2010
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Volume/pages
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72
:6
(2010)
, p. 305-311
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ISI
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000283849900003
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Full text (Publisher's DOI)
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