Binaural enhancement for bilateral cochlear implant users.
Binaural enhancement for bilateral cochlear implant users.
复制标题
双侧人工耳蜗使用者的双耳增强。
DOI：
10.1097/aud.0000000000000044
复制
发表时间：
2014-09
期刊：
影响因子：
3.7
通讯作者：
Brown CA
中科院分区：
文献类型：
--
作者：
Brown CA
双侧人工耳蜗 (BCI) 用户收到的双耳提示有限，因此空间提示对语音清晰度的改善甚微。研究了增强 BCI 用户可用的双耳线索的方法的可行性。这涉及将耳间的电平差异（通常仅限于高频）扩展到低频区域。语音清晰度是在 BCI 用户通过耳机收听和直接刺激的情况下测量的，目标说话者出现在头部的一侧，另一侧有掩蔽说话者。空间分离是通过应用自然发生的双耳线索或增强线索来实现的。在这种听力配置中，与自然发生的双耳提示相比，BCI 患者在增强的双耳提示下表现出更高的言语清晰度。在某些情况下，当通过应用低频区域的耳间电平差异来增强双耳提示时，BCI 用户可以实现更高的语音清晰度。
Bilateral cochlear implant (BCI) users receive limited binaural cues and, thus, show little improvement to speech intelligibility from spatial cues. The feasibility of a method for enhancing the binaural cues available to BCI users is investigated. This involved extending interaural differences of levels, which typically are restricted to high frequencies, into the low-frequency region. Speech intelligibility was measured in BCI users listening over headphones and with direct stimulation, with a target talker presented to one side of the head in the presence of a masker talker on the other side. Spatial separation was achieved by applying either naturally occurring binaural cues or enhanced cues. In this listening configuration, BCI patients showed greater speech intelligibility with the enhanced binaural cues than with naturally occurring binaural cues. In some situations, it is possible for BCI users to achieve greater speech intelligibility when binaural cues are enhanced by applying interaural differences of levels in the low-frequency region.