水平方位声源定位准确性与不同方位角方向及角度间隔设置关系的研究  

Study on the accuracy of azimuthal sound source localization and the effect of different azimuth directions and angular interval settings

作　　者：戴金升 何晓霖 李嘉莹 王兴 温晓慧[1] 王宁宇[1] 张娟[1] DAI Jinsheng;HE Xiaolin;LI Jiaying;WANG Xing;WEN Xiaohui;WANG Ningyu;ZHANG Juan(Department of Otolaryngology Head and Neck Surgery,Beijing Chao Yang Hospital,Capital Medical University,Beijing,100020,China)

机构地区：[1]首都医科大学附属北京朝阳医院耳鼻咽喉头颈外科,北京100020

出　　处：《中国耳鼻咽喉头颈外科》2025年第2期82-85,93,共5页Chinese Archives of Otolaryngology-Head and Neck Surgery

基　　金：首都医科大学附属北京朝阳医院多学科临床研究创新团队项目(CYDXK202201)。

摘　　要：目的探讨方位角方向、角度间隔与水平方位声源定位准确性的关系。方法对15名听力正常青年受试者,使用9种方位角设置进行测试。分析均方根误差及混淆率。结果高频窄带噪声混淆率明显高于宽带噪声及三音节词。前方位下,20°同10°、15°有显著差异(P<0.05),10°与15°之间无显著差异(P>0.05)。侧、后方位下,30°同15°、20°差异显著(P<0.05),15°与20°无显著差异(P>0.05)。前方位分别与侧、后方位结果具有显著差异(P<0.05),侧、后方位之间结果无显著差异(P>0.05)。结论采用宽频刺激声有助于更准确反映受试者的水平定位能力;宽频噪声及三音节词测试时,前方位可用15°角度间隔,侧方位及后方位可用20°角度间隔;可优先选择前方位和侧方位进行测试。OBJECTIVE To investigate the relationship between azimuth direction,angular intervals,and the accuracy of azimuthal sound source localization.METHODS Fifteen young subjects with normal hearing were tested using nine azimuth settings.The test results were presented as root mean square error and percentage confusion.RESULTS The confusion rate under high-frequency narrowband noise was significantly higher than that under broadband noise and three-syllable words.In the frontal direction,statistically significant differences were observed between the 20°and 10°intervals,as well as between the 20°and 15°intervals(P<0.05),but no significant difference was found between the 10°and 15°intervals(P>0.05).In the lateral and rear directions,statistically significant differences were found between the 30°and 15°intervals,as well as between the 30°and 20°intervals(P<0.05),but no significant difference was found between the 15°and 20°intervals(P>0.05).Statistically significant differences were observed between the frontal direction and both the lateral and rear directions(P<0.05),but no significant difference was found between the lateral and rear directions(P>0.05).CONCLUSION Using stimuli that contain broader bandwidth cues can more accurately reflect the subject's horizontal localization ability.For source azimuth identification tests using broadband noise and three-syllable words,it is recommended to use a 15°interval in the frontal direction,and a 20°interval in the lateral and rear directions.The frontal and lateral directions can be preferred for testing.

关 键 词：声源定位 角度识别 开放声场测试 

分 类 号：R764.5[医药卫生—耳鼻咽喉科]