Effects of the intensified frequency and time ranges on consonant enhancement in bilateral cochlear implant and hearing aid users.
Effects of the intensified frequency and time ranges on consonant enhancement in bilateral cochlear implant and hearing aid users.
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DOI：
10.3389/fpsyg.2022.918914
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发表时间：
2022
影响因子：
3.8
通讯作者：
Drew, Carrie
中科院分区：
文献类型：
--
作者：
Yoon, Yang-Soo;Drew, Carrie
先前的研究表明，当有用的频率和时间范围增强6 dB时，正常听力的听者的辅音识别显著改善。本研究的目的是确定双侧人工耳蜗（BCI）和双侧助听器（BHA）用户是否在噪声中使用这些强化的频谱和时间线索时对辅音识别有类似的增强。总共有10个BCI和10个BHA用户参与了使用14个辅音的识别测试。对于每一个辅音，我们使用的频率和时间范围是关键的识别（称为“目标频率和时间范围”），从正常听力的听众确定。然后，使用称为发音指数图（AI-Gram）的信号处理工具将6 dB增益添加到目标频率和时间范围。在两种信号处理条件下，在+5和+10 dB信噪比和安静条件下，对未处理和强化目标频率和时间范围进行了单耳和双耳测量。我们集中在BCI和BHA组之间的三个比较：（1）AI-Gram益处（即，在将目标范围增强6dB之前和之后），（2）通过AI-Gram处理增强双耳益处（与单独的较好的耳朵相比，使用双侧设备的性能更好），以及（3）通过AI-Gram处理减少双耳干扰（与单独的较好的耳朵相比，使用双侧设备的性能更差）。结果显示，BCI组（最大5.9%）和BHA组（最大5.2%）的平均AI-Gram获益显著改善。然而，在AI-革兰氏染色处理后，平均双耳益处没有改善。个体数据显示，两组的AI-Gram益处（最大-1%至23%）和双耳益处（最大-7.6%至13%）范围很广。个体数据还显示，在AI-Gram处理后，两组的双耳干扰都有所减少。这些结果表明，频率和时间范围，加强了AI-革兰氏处理，有助于辅音增强单耳和双耳听力和BCI和BHA技术。强化的频率和时间范围有助于减少双耳干扰，但对两组辅音识别的协同双耳益处贡献较小。
A previous study demonstrated that consonant recognition improved significantly in normal hearing listeners when useful frequency and time ranges were intensified by 6 dB. The goal of this study was to determine whether bilateral cochlear implant (BCI) and bilateral hearing aid (BHA) users experienced similar enhancement on consonant recognition with these intensified spectral and temporal cues in noise. In total, 10 BCI and 10 BHA users participated in a recognition test using 14 consonants. For each consonant, we used the frequency and time ranges that are critical for its recognition (called “target frequency and time range”), identified from normal hearing listeners. Then, a signal processing tool called the articulation-index gram (AI-Gram) was utilized to add a 6 dB gain to target frequency and time ranges. Consonant recognition was monaurally and binaurally measured under two signal processing conditions, unprocessed and intensified target frequency and time ranges at +5 and +10 dB signal-to-noise ratio and in quiet conditions. We focused on three comparisons between the BCI and BHA groups: (1) AI-Gram benefits (i.e., before and after intensifying target ranges by 6 dB), (2) enhancement in binaural benefits (better performance with bilateral devices compared to the better ear alone) via the AI-Gram processing, and (3) reduction in binaural interferences (poorer performance with bilateral devices compared to the better ear alone) via the AI-Gram processing. The results showed that the mean AI-Gram benefit was significantly improved for the BCI (max 5.9%) and BHA (max 5.2%) groups. However, the mean binaural benefit was not improved after AI-Gram processing. Individual data showed wide ranges of the AI-Gram benefit (max −1 to 23%) and binaural benefit (max −7.6 to 13%) for both groups. Individual data also showed a decrease in binaural interference in both groups after AI-Gram processing. These results suggest that the frequency and time ranges, intensified by the AI-Gram processing, contribute to consonant enhancement for monaural and binaural listening and both BCI and BHA technologies. The intensified frequency and time ranges helped to reduce binaural interference but contributed less to the synergistic binaural benefit in consonant recognition for both groups.
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影响因子：
1.9
作者：
Obuchi C;Shiroma M;Ogane S;Kaga K
通讯作者：
Kaga K
影响因子：
3.7
作者：
Goupell MJ;Stakhovskaya OA;Bernstein JGW
通讯作者：
Bernstein JGW
DOI：
10.1080/00437956.1950.11659381
发表时间：
1950-12-01
影响因子：
0.6
作者：
Hayden, Rebecca E.
通讯作者：
Hayden, Rebecca E.
影响因子：
--
作者：
Bisgaard, Nikolai;Vlaming, Marcel S. M. G.;Dahlquist, Martin
通讯作者：
Dahlquist, Martin
影响因子：
--
作者：
Mukherjee, Payal;Uzun-Coruhlu, Hilal;Gibson, William P R
通讯作者：
Gibson, William P R