非线性频率压缩助听器对耳聋患者噪声下言语识别的影响

The Effect of Nonlinear Frequency Compression on Speech Recognition in Noise for Hearing-Impaired Listeners with Hearing Aids

尤妍颜;陈雪清;徐立;Voss Solveig Christina;孟超;Rehmann Julia;郭倩倩;Kuehnel Volker;钱金宇;

1:首都医科大学附属北京同仁医院

2:北京市耳鼻咽喉科研究所

3:耳鼻咽喉头颈科学教育部重点实验室(首都医科大学)

4:School of Rehabilitation and Communication Sciences

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摘要

目的探讨非线性频率压缩(nonlinear frequency compression,NLFC)助听器对以汉语普通话为母语的耳聋患者噪声下言语识别的影响,为耳聋患者助听器选配及助听效果评估提供参考。方法 25例以汉语普通话为母语的感音神经性聋患者,均双耳佩戴助听器,根据患者是否有NLFC助听经验分为A、B两组:A组13例有NLFC助听经验,日常使用NLFC技术;B组12例无NLFC助听经验,日常使用传统放大(conventional process,CP)技术。所有患者分别在NLFC和CP条件下进行噪声下句子识别测试,比较其结果。结果 A组患者在NLFC和CP条件下的噪声下言语识别率分别为82.33%±16.06%、76.70%±18.08%,前者高于后者,差异有显著统计学意义(P<0.01);B组分别为83.04%±12.56%、81.79%±20.07%(P=0.19),差异无统计学意义。A组患者在NLFC和CP条件下的高频(4、6、8kHz)助听听阈分别为53.54±7.30、57.01±6.81dB SPL,B组分别为57.42±8.38和61.21±7.42dB SPL,两组NLFC条件下的助听听阈低于CP条件,差异均有统计学意义(P<0.01)。经统计学回归处理,患者在NLFC和CP条件下的高频助听听阈差值与言语识别率差值呈线性相关(r=0.63,t=3.89,P=0.007)。结论 NLFC技术可改善患者高频可听度及噪声下言语识别,一定的NLFC使用经验可使NLFC助听效果最大化。

关键词

助听器;非线性频率压缩;言语识别

基金项目(Foundation):

首都市民健康项目培育专项(Z141100002114033);; 北京市医院管理局临床医学发展专项-2015年度"扬帆"计划临床技术创新项目(XMLX201514);; 首都卫生发展科研专项项目(首发2011-1017-01)资助

作者

尤妍颜;陈雪清;徐立;Voss Solveig Christina;孟超;Rehmann Julia;郭倩倩;Kuehnel Volker;钱金宇;

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