中国耳鼻咽喉头颈外科2016，Vol.23Issue(1)：8-11,4.DOI:10.16066/j.1672-7002.2016.01.003
噪声频谱特性对正常听力成人词汇识别影响
Effects of noise spectrumon word perception in normal hearing adults
摘要
Abstract
OBJECTIVE The purpose of the present study was to investigate the effects of noise spectrum, including speech spectrum-shaped noise(SSN), and 4-talker babble noise(BN) on spoken word perception in noise in normal hearing adults. METHODS In all, thirty-one native Mandarin speaking normal hearing adults (age ranged from n 20 to 26 years) participated in the study.The evaluation material was M-LNT, each participant was tested in SSN and BN, respectively. P-SNR was obtainedfor each participant. RESULTS The SNR50 of disyllable and monosyllable in SSN were -7.63 dB and -4.83 dB, and the corresponding rate ratio were 11.14 and 5.61, respectively. The SNR50 of disyllable and monosyllable in BN were -5.52 dB and -3.34 dB, the corresponding rate ratio were 9.28 and 6.04, respectively. There were significant differences of SNR50 between disyllable and monosyllable in SSN and BN(P<0.05). CONCLUSION Compared with SSN, greater masking effect was observed in BN in normal hearing adults.Specifically, the P-SNR function of M-LNT in BN shifted to the rightand increased slower than SSN. Similar lexical effect was found in each typeof noises. That is, compared to disyllabic word, better SNR was needed for monosyllabic word to obtained same perception correct.关键词
噪声/言语识别测试/成人/频率选择特异性/词汇识别Key words
Noise/Speech Discrimination Tests/Adult/frequency selectivity/word perception引用本文复制引用
郑之芃,刘莎,任寸寸,刘欣,李颖,刘海红..噪声频谱特性对正常听力成人词汇识别影响[J].中国耳鼻咽喉头颈外科,2016,23(1):8-11,4.基金项目
国家自然科学基金（81170916，81300838，81541109）、北京市自然科学基金（7144212）和北京市医院管理局临床医学发展专项“扬帆”计划（XMLX201514）联合资助 （）
