非线性频率压缩助听器对汉语耳聋患者音质感知的影响

发布时间：2018-11-10 22:49

【摘要】：目的探讨非线性频率压缩(nonlinear frequency compression,NLFC)技术对汉语耳聋患者音质感知的影响。方法 23例无助听器佩戴经验的成年双侧中、重度感音神经性聋患者,初次选配具有NLFC功能的Phonak Bolero Q系列耳背式助听器(均双耳助听),选配结束后立即进行音质感知测试,测试音(男声、女声、鸟鸣、音乐和自己的声音)通过Matlab软件经扬声器随机播放,给声强度为65dBSPL;NLFC设置为截止频率4.9~6kHz,压缩比为1.5,患者分别在NLFC开启和关闭条件下对测试音在响度、清晰度、自然程度和总体感觉四方面的音质进行评价,分数越高,表示患者对测试音音质的满意度越高。结果 23例患者在NLFC开启和关闭条件下的6、8kHz助听听阈差异有统计学意义,前者优于后者(P0.05),而4kHz助听听阈差异无统计学意义(P0.05);患者在NLFC开启和关闭条件下对上述五种测试音在响度、清晰度、自然程度和总体感觉四个方面的音质感知评分差异均无统计学意义(均为P0.05)。结论 NLFC开启和关闭对初次使用该技术助听器的患者在音质感知方面无明显影响。
[Abstract]:Objective to investigate the effect of nonlinear frequency compression (nonlinear frequency compression,NLFC) technique on acoustic perception in Chinese deafness patients. Methods Twenty-three adult patients with moderate or severe sensorineural hearing loss without hearing aids were selected for the first time with Phonak Bolero Q series of Phonak Bolero Q hearing aids with NLFC function. Sound quality perception tests were performed immediately after the selection. The test sounds (male, female, birdsong, music and own voice) were played randomly by loudspeakers through Matlab software, and the sound intensity was 65 d BSPLs; The NLFC was set to 4.9kHz with a compression ratio of 1.5.The patients evaluated the sound quality of the tested sound in four aspects, including loudness, clarity, naturalness and overall feeling under the condition of NLFC on and off respectively. The higher the score was, the higher the score was. The higher the patient's satisfaction with the sound quality of the test. Results there was significant difference in the hearing threshold between the 23 patients under the condition of NLFC opening and closing, the former was better than the latter (P0.05), but the difference of the 4kHz hearing threshold was not statistically significant (P0.05). There was no significant difference in the sound quality perception scores of the above five test sounds in the four aspects of loudness, clarity, natural degree and overall sensation under the condition of NLFC on and off (P0.05). Conclusion NLFC turned on and off has no significant effect on sound quality perception in patients with new hearing aids.
【作者单位】：首都医科大学附属北京同仁医院北京市耳鼻咽喉科研究所耳鼻咽喉头颈科学教育部重点实验室(首都医科大学);School
【基金】：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)联合资助首都医科大学附属北京同仁医院科研种子基金资助项目(2016-YJJ-ZZL-001)
【分类号】：R764.43

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