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多频声与窄带白噪声的听觉感知分辨 被引量:1
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作者 谢志文 车洪峰 《华南理工大学学报(自然科学版)》 EI CAS CSCD 北大核心 2010年第3期138-142,共5页
选取第3、5、7、9、11、13、15、17、19、21共10个临界带的频率范围,针对5、10、20、30、50、100个频率成分等6种频率组合的多频声信号,进行了同一临界带的多频声和窄带白噪声的听觉感知分辨的研究.结果表明:随着频率成分个数的增加,多... 选取第3、5、7、9、11、13、15、17、19、21共10个临界带的频率范围,针对5、10、20、30、50、100个频率成分等6种频率组合的多频声信号,进行了同一临界带的多频声和窄带白噪声的听觉感知分辨的研究.结果表明:随着频率成分个数的增加,多频声与窄带白噪声越来越难以区分;而当频率成分个数确定时,高频段临界带的多频声与窄带白噪声更难以区分.上述结果在某种程度上反映了人耳的频率分辨能力,即人耳的频率分辨率与临界带有关,临界带序号越大,频率分辨率越差,多频声的感知效果就越接近窄带白噪声. 展开更多
关键词 临界带 多频声 窄带白噪声 听觉感知差别
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Gender Differences in Auditory Perception and Computational Divided Attention Tasks
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作者 Bankole K. Fasanya Maranda E. McBride: +1 位作者 Regina Pope-Ford Celestine Ntuen 《Computer Technology and Application》 2012年第9期636-641,共6页
Women have been stereotyped as better multitaskers when compared to their male counterparts. The purpose of this study is to investigate whether there are differences in gender performance when performing cognitive co... Women have been stereotyped as better multitaskers when compared to their male counterparts. The purpose of this study is to investigate whether there are differences in gender performance when performing cognitive combined tasks. Twenty-four graduate students (twelve females and twelve males) volunteered to participate in the study. The task requires participants to indicate when they perceive a change in the intensity of an auditory signal while simultaneously solving algebraic problems. Multivariate Analysis of Variance (MANOVA) results reveal no significant differences between genders when performing the combined tasks (p = 0.1831 and 2 = 0.7891) although the average number of false alarms made during the combined tasks by males is nearly 11% higher than the average number of false alarms made by females. However, (Multivariate Analysis of Variance) ANOVA results for the combined tasks show that males outperform females on the computational task while listening for changes in the auditory signal F(1, 22) - 5.09, p 〈 0.03, but there are no significant differences in their ability to detect noise intensity variation or in the number of false alarms made while multitasking. For the single task analysis the ANOVAs indicate no significant differences in signal detection task performance, computational task performance, or the number of false alarms made by males and females. 展开更多
关键词 Pink noise background noise tolerance level (BNTL) multitasking acoustic chamber azimuths.
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