使用单声道自适应波束形成器的人工耳蜗植入患者在噪声中的言语理解
Speech Understanding in Noise by Patients With Cochlear Implants Using a Monaural Adaptive Beamformer.
作者信息
Dorman Michael F, Natale Sarah, Spahr Anthony, Castioni Erin
机构信息
Arizona State University, Tempe.
Advanced Bionics, Valencia, CA.
出版信息
J Speech Lang Hear Res. 2017 Aug 16;60(8):2360-2363. doi: 10.1044/2017_JSLHR-H-16-0312.
PURPOSE
The aim of this experiment was to compare, for patients with cochlear implants (CIs), the improvement for speech understanding in noise provided by a monaural adaptive beamformer and for two interventions that produced bilateral input (i.e., bilateral CIs and hearing preservation [HP] surgery).
METHOD
Speech understanding scores for sentences were obtained for 10 listeners fit with a single CI. The listeners were tested with and without beamformer activated in a "cocktail party" environment with spatially separated target and maskers. Data for 10 listeners with bilateral CIs and 8 listeners with HP CIs were taken from Loiselle, Dorman, Yost, Cook, and Gifford (2016), who used the same test protocol.
RESULTS
The use of the beamformer resulted in a 31 percentage point improvement in performance; in bilateral CIs, an 18 percentage point improvement; and in HP CIs, a 20 percentage point improvement.
CONCLUSION
A monaural adaptive beamformer can produce an improvement in speech understanding in a complex noise environment that is equal to, or greater than, the improvement produced by bilateral CIs and HP surgery.
目的
本实验的目的是比较对于人工耳蜗（CI）植入患者，单耳自适应波束形成器在噪声环境下对言语理解的改善效果，以及两种产生双耳输入的干预措施（即双耳CI植入和听力保留[HP]手术）的效果。
方法
对10名单侧CI植入的受试者获取句子的言语理解分数。在“鸡尾酒会”环境中，目标声源和掩蔽声在空间上分离，受试者分别在波束形成器开启和关闭的情况下接受测试。10名双耳CI植入受试者和8名接受HP手术的CI植入受试者的数据取自Loiselle、Dorman、Yost、Cook和Gifford（2016年），他们采用了相同的测试方案。
结果
使用波束形成器使言语理解能力提高了31个百分点；双耳CI植入使言语理解能力提高了18个百分点；接受HP手术的CI植入使言语理解能力提高了20个百分点。
结论
单耳自适应波束形成器在复杂噪声环境下可使言语理解能力得到改善，其改善程度等同于或大于双耳CI植入和HP手术。
Zotero 插件