Cross-Frequency Integration for Consonant and Vowel Identification in Bimodal Hearing
Purpose: Improved speech recognition in binaurally combined acoustic–electric stimulation (otherwise known as bimodal hearing) could arise when listeners integrate speech cues from the acoustic and electric hearing. The aims of this study were (a) to identify speech cues extracted in electric hearin...
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Speech-Language-Hearing Association
2014
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| Online Access: | http://hdl.handle.net/1721.1/86049 https://orcid.org/0000-0003-2538-9991 |
| _version_ | 1811068698670137344 |
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| author | Kong, Ying-Yee Braida, Louis D. |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Kong, Ying-Yee Braida, Louis D. |
| author_sort | Kong, Ying-Yee |
| collection | MIT |
| description | Purpose: Improved speech recognition in binaurally combined acoustic–electric stimulation (otherwise known as bimodal hearing) could arise when listeners integrate speech cues from the acoustic and electric hearing. The aims of this study were (a) to identify speech cues extracted in electric hearing and residual acoustic hearing in the low-frequency region and (b) to investigate cochlear implant (CI) users' ability to integrate speech cues across frequencies.
Method: Normal-hearing (NH) and CI subjects participated in consonant and vowel identification tasks. Each subject was tested in 3 listening conditions: CI alone (vocoder speech for NH), hearing aid (HA) alone (low-pass filtered speech for NH), and both. Integration ability for each subject was evaluated using a model of optimal integration—the PreLabeling integration model (Braida, 1991).
Results: Only a few CI listeners demonstrated bimodal benefit for phoneme identification in quiet. Speech cues extracted from the CI and the HA were highly redundant for consonants but were complementary for vowels. CI listeners also exhibited reduced integration ability for both consonant and vowel identification compared with their NH counterparts.
Conclusion: These findings suggest that reduced bimodal benefits in CI listeners are due to insufficient complementary speech cues across ears, a decrease in integration ability, or both. |
| first_indexed | 2024-09-23T07:59:47Z |
| format | Article |
| id | mit-1721.1/86049 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T07:59:47Z |
| publishDate | 2014 |
| publisher | American Speech-Language-Hearing Association |
| record_format | dspace |
| spelling | mit-1721.1/860492022-09-30T01:32:28Z Cross-Frequency Integration for Consonant and Vowel Identification in Bimodal Hearing Kong, Ying-Yee Braida, Louis D. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Research Laboratory of Electronics Kong, Ying-Yee Braida, Louis D. Purpose: Improved speech recognition in binaurally combined acoustic–electric stimulation (otherwise known as bimodal hearing) could arise when listeners integrate speech cues from the acoustic and electric hearing. The aims of this study were (a) to identify speech cues extracted in electric hearing and residual acoustic hearing in the low-frequency region and (b) to investigate cochlear implant (CI) users' ability to integrate speech cues across frequencies. Method: Normal-hearing (NH) and CI subjects participated in consonant and vowel identification tasks. Each subject was tested in 3 listening conditions: CI alone (vocoder speech for NH), hearing aid (HA) alone (low-pass filtered speech for NH), and both. Integration ability for each subject was evaluated using a model of optimal integration—the PreLabeling integration model (Braida, 1991). Results: Only a few CI listeners demonstrated bimodal benefit for phoneme identification in quiet. Speech cues extracted from the CI and the HA were highly redundant for consonants but were complementary for vowels. CI listeners also exhibited reduced integration ability for both consonant and vowel identification compared with their NH counterparts. Conclusion: These findings suggest that reduced bimodal benefits in CI listeners are due to insufficient complementary speech cues across ears, a decrease in integration ability, or both. National Organization for Hearing Research National Institute on Deafness and Other Communication Disorders (U.S.) (Grant R03 DC009684-01) National Institute on Deafness and Other Communication Disorders (U.S.) (Grant R01 DC007152-02) 2014-04-07T14:14:41Z 2014-04-07T14:14:41Z 2011-06 2010-07 Article http://purl.org/eprint/type/JournalArticle 1092-4388 1558-9102 http://hdl.handle.net/1721.1/86049 Kong, Y.-Y., and L. D. Braida. “Cross-Frequency Integration for Consonant and Vowel Identification in Bimodal Hearing.” Journal of Speech, Language, and Hearing Research 54, no. 3 (June 1, 2011): 959–980. https://orcid.org/0000-0003-2538-9991 en_US http://dx.doi.org/10.1044/1092-4388(2010/10-0197) Journal of Speech, Language, and Hearing Research Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf American Speech-Language-Hearing Association PMC |
| spellingShingle | Kong, Ying-Yee Braida, Louis D. Cross-Frequency Integration for Consonant and Vowel Identification in Bimodal Hearing |
| title | Cross-Frequency Integration for Consonant and Vowel Identification in Bimodal Hearing |
| title_full | Cross-Frequency Integration for Consonant and Vowel Identification in Bimodal Hearing |
| title_fullStr | Cross-Frequency Integration for Consonant and Vowel Identification in Bimodal Hearing |
| title_full_unstemmed | Cross-Frequency Integration for Consonant and Vowel Identification in Bimodal Hearing |
| title_short | Cross-Frequency Integration for Consonant and Vowel Identification in Bimodal Hearing |
| title_sort | cross frequency integration for consonant and vowel identification in bimodal hearing |
| url | http://hdl.handle.net/1721.1/86049 https://orcid.org/0000-0003-2538-9991 |
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