不同噪声模式下声调对听力正常青年言语识别能力的影响  

Importance of Lexical Tone in Sentence Recognition in Different Noise Conditions

作　　者：王媛[1] 李楠[1] 董瑞娟[1] 刘冬鑫[1] 陈静[1] 徐立[2] 王硕[1] Wang Yuan;Li Nan;Dong Ruijuan;Liu Dongxin;Chen Jing;Xu Li;Wang Shuo(Department of Otolaryngology Head and Neck Surgery,Beijing Tongren Hospital, key Laboratory of Otolaryngology Head and Neck Surgery,Capital Medical University, Ministry of Education,Beijing Institute Otolaryngology,Beijing,100005,China)

机构地区：[1]首都医科大学附属北京同仁医院耳鼻咽喉头颈外科,耳鼻咽喉头颈科学教育部重点实验室(首都医科大学),北京市耳鼻咽喉科研究所,北京100005 [2]美国俄亥俄大学健康与言语康复科学学系

出　　处：《听力学及言语疾病杂志》2019年第2期131-133,共3页Journal of Audiology and Speech Pathology

基　　金：国家自然科学基金资助项目(81200754;81870715);2012北京市科技新星计划资助项目(Z121107002512033);北京市自然科学基金面上项目(7122034);北京市自然科学基金青年项目(7154190);北京市科协金桥工程种子资金项目(ZZ16049);首都卫生发展科研专项基金项目(2011-1017-04);首都医科大学基础-临床科研合作基金项目(12JL46);北京市卫生系统高层次卫生技术人才基金项目(2015-3-012);2017北京市东城区优秀人才培养资助项目

摘　　要：目的通过评价听力正常青年在安静和不同噪声环境下聆听自然声调和平声调语句的言语识别能力,探讨汉语声调对噪声环境下言语识别能力的影响。方法对20例听力正常青年受试者,使用汉语普通话噪声下言语测试材料,分别在安静环境和信噪比为+5、0、-5 dB的语谱噪声(speech-shaped noise, SSN)下,以及双人语噪声(two-talkers babbles, TTB)环境下进行自然声调和平声调语句的言语识别能力测试,比较不同噪声模式下言语识别率的差异。结果在安静环境和信噪比为+5、0 dB的两种噪声模式下,听力正常受试者聆听自然声调语句和平声调语句的言语识别率差异无统计学意义(P>0.05);信噪比为-5 dB时,两种噪声模式下受试者对自然声调语句的言语识别率显著高于平声调语句(P<0.05);双人语噪声下聆听平声调语句的言语识别率显著高于语谱噪声下的言语识别率(P<0.05)。结论与双人语噪声相比,在语谱噪声下聆听时,声调信息对言语识别能力贡献更大。Objective This study aims to explore the importance of lexical tone in the sentence recognition under different noise patterns and SNRs. Methods The Mandarin hearing in noise test was used as speech test materials. Twenty subjects (10 males and 10 females) with normal hearing were recruited in the study. The average age was 22.41 ± 1.84 years old. They were assessed with speech recognition scores (SRS) for both natural-tone sentences and flat-tone sentences under the conditions of quiet, SNRs=5 dB, 0 dB and -5 dB. The speech-shaped noise (SSN) and two-talkers noise (TTB) were used in the study. The Mann-Whitney test in SPSS 21.0 software was applied to analyze the differences of SRS between the sentences with natural tone and with flat tone under the both quiet and different noise conditions. Results There were no significant differences in SRS between natural-tone sentences and flat-tone sentences in quiet, SNR=5 dB, and SNR=0 dB conditions ( P > 0.05 ) for both SSN and TTB conditions. There were significant differences in SRS between natural-tone sentences and flat-tone sentences in SNR=-5 dB for both SSN and TTB conditions ( P < 0.05 ). The speech recognition scores with flat-tone sentences in two-talker noise were significantly higher than that in speech-shaped noise ( P < 0.05 ). Conclusion In comparison with two-talker noise, the lexical tone contributes more to the speech recognition in speech-shaped noise.

关 键 词：言语声调 语谱噪声 双人语噪声 

分 类 号：R764.5[医药卫生—耳鼻咽喉科]