The Impact of Bimodal Hearing on Speech Acoustics of Vowel Production in Adult Cochlear Implant Users.
The Impact of Bimodal Hearing on Speech Acoustics of Vowel Production in Adult Cochlear Implant Users.
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双模态听力对成人人工耳蜗使用者元音产生的语音声学的影响。
DOI：
10.1044/2023_jslhr-22-00201
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发表时间：
2023
期刊：
影响因子：
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通讯作者：
Daliri,Ayoub
中科院分区：
文献类型：
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作者：
Luo,Xin;Daliri,Ayoub
目的本研究旨在调查通过人工耳蜗 (CI)、助听器 (HA) 和双模态听力 (CI + HA) 提供不同形式的听觉反馈时元音产生的声学变化。 方法 10 名舌后聋成人双模态 CI 用户（年龄 50-78 岁）在短期使用无助听器期间在 /hVd/ 背景下发出英语元音 /i/、/ɛ/、/æ/、/ɑ/、/ʊ/ 和 /u/设备 (ND)、HA、CI 和 CI + HA。分析了元音产生的分段特征（第一共振峰频率[F1]、第二共振峰频率[F2]和元音空间面积）和超分段特征（持续时间、强度和基频[fo]）。参与者还使用 HA、CI 和 CI + HA 对自己生成的 /ɛ/ 和 /æ/ 合成的元音连续体进行了分类。结果所有元音的 F1 均下降；前元音的 F2 增加，但后元音不增加；元音空间面积增加；相对于 ND 条件，HA、CI 和 CI + HA 条件下元音持续时间、强度和 fos 均呈统计显着性下降。 CI 和 CI + HA 比 HA 的 onlyfos 更低，元音空间面积更大。从ND条件到HA、CI和CI+HA条件的平均变化信息、强度和F1呈正相关。大多数参与者没有表现出典型的元音分类心理测量功能，因此，元音分类和产生之间的关系没有得到测试。结论结果表明，当听力设备暂时打开和关闭时，声学、电学和双模态听力对舌后聋成人的元音声学有可测量的影响。此外，使用听力设备时 info 和 F1 的变化可能很大程度上是由强度的变化驱动的。
PurposeThis study aimed to investigate the acoustic changes in vowel production with different forms of auditory feedback via cochlear implant (CI), hearing aid (HA), and bimodal hearing (CI + HA).MethodTen post–lingually deaf adult bimodal CI users (aged 50–78 years) produced English vowels /i/, /ɛ/, /æ/, /ɑ/, /ʊ/, and /u/ in the context of /hVd/ during short-term use of no device (ND), HA, CI, and CI + HA. Segmental features (first formant frequency [F1], second formant frequency [F2], and vowel space area) and suprasegmental features (duration, intensity, and fundamental frequency [fo]) of vowel production were analyzed. Participants also categorized a vowel continuum synthesized from their own productions of /ɛ/ and /æ/ using HA, CI, and CI + HA.ResultsF1s of all vowels decreased;F2s of front vowels but not back vowels increased; vowel space areas increased; and vowel durations, intensities, andfos decreased with statistical significance in the HA, CI, and CI + HA conditions relative to the ND condition. Onlyfos were lower, and vowel space areas were larger with CI and CI + HA than with HA. Average changes info, intensity, andF1from the ND condition to the HA, CI, and CI + HA conditions were positively correlated. Most participants did not show a typical psychometric function for vowel categorization, and thus, the relationship between vowel categorization and production was not tested.ConclusionsThe results suggest that acoustic, electric, and bimodal hearing have a measurable impact on vowel acoustics of post–lingually deaf adults when their hearing devices are turned on and off temporarily. Also, changes infoandF1with the use of hearing devices may be largely driven by changes in intensity.