...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Otology and neurotology: official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology >Comparison of speech discrimination in noise and directional hearing with 2 different sound processors of a bone-anchored hearing system in adults with unilateral severe or profound sensorineural hearing loss
【24h】

Comparison of speech discrimination in noise and directional hearing with 2 different sound processors of a bone-anchored hearing system in adults with unilateral severe or profound sensorineural hearing loss

机译：成年人单侧严重或严重感觉神经性听力损失的噪声和定向听觉的语音辨别与两种不同的骨锚式听觉系统的声音处理器的比较

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

OBJECTIVE: To evaluate and compare the benefit of a bone-anchored hearing implant with 2 different sound processors in adult patients with unilateral severe to profound sensorineural hearing loss (UHL). STUDY DESIGN: Prospective crossover design. SETTING: Tertiary referral center. PATIENTS: Eleven adults with UHL and normal hearing in the contralateral ear were assigned to 2 groups. INTERVENTION: All subjects were unilaterally implanted with a bone-anchored hearing implant and were initially fitted with 2 different sound processors (SP-1 and SP-2). SP-1 is a multichannel device equipped with an omnidirectional microphone and relatively simple digital signal-processing technology and provides a user-adjustable overall gain and tone control with compression limiting. SP-2 is a fully channel-by-channel programmable device, which can be set with nonlinear dynamic range compression or linear amplification. In addition, SP-2 features automatic noise management, an automatic multichannel directional microphone, microphone position compensation, and an implementation of prescription rules for different types of hearing losses, one of them unilateral deafness. After at least 1-month use of the initial processor, both groups were fitted with the alternative processor. MAIN OUTCOME MEASURES: Speech discrimination in noise and localization tests were performed at baseline visit before surgery, after at least 1-month use of the initial processor, and after at least 2-week use of the alternative processor. RESULTS: Relative to unaided baseline, SP-2 enabled significantly better overall speech discrimination results, whereas there was no overall improvement with SP-1. There was no difference in speech discrimination between SP-1 and SP-2 in all spatial settings. Sound localization was comparably poor at baseline and with both processors but significantly better than chance level for all 3 conditions. CONCLUSION: Patients with UHL have an overall objective benefit for speech discrimination in noise using a bone-anchored hearing implant with SP-2. In contrast, there is no overall objective benefit from SP-1. Depending on the speech-in-noise presentation setting, the difference between objective benefit from SP-2 and SP-1 might be mainly attributed to the new technological features in SP-2 unavailable in SP-1 such as 1) automatic noise management reducing the noise in the speech signal and thus improving the signal-to-noise ratio of the resulting signal on the better ear, 2) programmable multichannel sound-processing and nonlinear dynamic range compression offering considerably greater control over signal amplification compared to SP-1, and 3) implementation of a prescription rule for unilateral deafness addressing the specific amplification needs of patients with UHL by reducing amplification in the low frequencies and applying additional gain in the high frequencies. Sound localization is poor but better than chance level in the unaided condition as well as in both bone-anchored hearing system-aided conditions.
机译：目的：评估和比较两种不同声音处理器的骨锚式听力植入物对单侧重度至重度感音神经性听力损失（UHL）的成年患者的益处。研究设计：前瞻性交叉设计。地点：第三级转诊中心。患者：11名成年人的UHL和对侧耳朵的听力正常，被分为2组。干预：所有受试者均单侧植入骨锚式听力植入物，并最初装有2种不同的声音处理器（SP-1和SP-2）。 SP-1是配备了全向麦克风和相对简单的数字信号处理技术的多通道设备，并提供了用户可调节的整体增益和音调控制以及压缩限制。 SP-2是一个完全逐通道的可编程设备，可以通过非线性动态范围压缩或线性放大进行设置。此外，SP-2具有自动噪声管理，自动多通道定向麦克风，麦克风位置补偿以及针对不同类型听力损失（其中一种是单侧耳聋）的处方规则的实现。在使用初始处理器至少1个月后，两组均装有备用处理器。主要观察指标：在手术前，初次使用处理器至少1个月后和替代处理器至少2周之后进行基线访视时，进行噪声和定位测试中的语音辨别。结果：相对于无辅助的基线，SP-2使整体语音识别结果明显更好，而SP-1没有整体改善。在所有空间设置中，SP-1和SP-2之间的语音辨别力均没有差异。在基线和两个处理器处，声音的定位均较差，但在所有3种情况下，其声音定位均明显好于机会水平。结论：使用带SP-2的骨锚式听力植入物，UHL患者在语音识别方面具有总体客观优势。相比之下，SP-1并没有整体的客观利益。根据噪声语音表示的设置，SP-2和SP-1的客观利益之间的差异可能主要归因于SP-1中不可用的SP-2中的新技术功能，例如1）自动降噪管理语音信号中的噪声，从而改善了更好的耳朵上所得信号的信噪比; 2）可编程多通道声音处理和非线性动态范围压缩，与SP-1相比，对信号放大的控制要大得多， 3）实施单方面失聪的处方规则，通过减少低频放大并在高频应用额外的增益来解决UHL患者的特殊放大需求。声音定位较差，但在无助情况下以及在骨锚式助听器辅助情况下均优于机会水平。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号