正常青年人噪声下普通话双音节词空间分离优势测试  

Mandarin Disyllables in Noise Test for Normal Hearing People for Spatial Separation Advantages

作　　者：陈静[1] 俞海英[2] 王硕[1] 李玉玲[1] 武文芳[2] 张华[1] 

机构地区：[1]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,北京100005 [2]首都医科大学生物医学工程学院

出　　处：《听力学及言语疾病杂志》2016年第2期123-125,共3页Journal of Audiology and Speech Pathology

基　　金：国家自然科学基金(81070784,30772488,81200754);首都卫生科研发展专项自主创新项目(首发2011-1017-04)联合资助

摘　　要：目的探讨对正常青年人进行普通话言语测听材料（mandarin speech test materials,MSTMs）中的双音节词测试时信号与噪声空间分离对其言语识别能力的影响。方法使用MSTMs中的双音节词表对50例（预测试6例,正式测试44例）听力正常青年人进行两种环境、六种信噪比（S/N）（噪声入射角为0°时信噪比为0、-2、-4、-6、-8、-10dB;噪声入射角为90°时信噪比为-10、-12、-14、-16、-18、-20dB）条件下的言语识别率测试。结果在噪声入射角为0°和90°时,随着信噪比降低,言语识别率为90%、80%、70%、60%、50%、40%、30%、20%时,0°~90°信噪比的差值分别为5、6.1、6.8、7.3、7.8、8.3、8.9、9.3。结论噪声和言语声的方向会影响言语识别率的得分,当噪声和言语声空间分离优势增大（噪声入射角0°~90°信噪比差值越小）时,言语识别率更好。Objective To evaluate Mandarin disyllables recognition scores in noise for normal hearing people,and to establish a model for teaohing.The second goal is to get the spatial separated advantage while the noise changing its direction.Methods Percentage of correct word recognition was measured for each list by testing 50Mandarin-speaking people aged from 18 to 30with normal aural/oral communicational abilities And.6of them joined the pilot study aimed to identify apresentation level that would be used in the formal test.The other 44 subjects participated in the formal speech test.Results When the noise was at 0and 90,the speech recognition changed along with the change of signal-to-noise ratio levels.Despite of the speech recognition effect,there was a strong relation between the signal-to-noise ratio of 0°and 90°.Conclusion The direction of speech and noise may strongly influence the speech recognition scores.When the noise and signal is separated,the score will be better.

关 键 词：双音节词 言语识别率 信噪比 

分 类 号：R764.433[医药卫生—耳鼻咽喉科] H018.4[医药卫生—临床医学]