文章摘要
张叔英,孙勇,孙耀秋.人耳对信号频率瞬时变化的听觉响应研究[J].声学技术,1992,(3):1~5
人耳对信号频率瞬时变化的听觉响应研究
A study of the auditory response to transitions between signal frequencies
  
DOI:
中文关键词: 
英文关键词: 
基金项目:国家自然科学基金
作者单位
张叔英 Shanghai Acoustics Lab, Academia Sinica 
孙勇 Shanghai Acoustics Lab, Academia Sinica 
孙耀秋 Shanghai Acoustics Lab, Academia Sinica 
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中文摘要:
      从探讨人耳在噪声背景中听测具有复杂时间-频率结构的主动声呐信号的模型出发,研究了人耳对信号频率发生短时间变化的感觉灵敏性问题。根据在850~1130Hz频段内的测量结果,得出了人耳听觉对频率变化响应的模糊区域由τ△F=1~2决定。这里τ和△F分别是指信号频率变化的时间间隔及变化的差值。当τt△F≤1时,人耳感觉不到频率的瞬变,而当,τ△F≥2时则能十分清楚地分辨。
英文摘要:
      For the study of detecting sonar signals with complex time-frequency composition under noise-background by human auditory system, the problem of auditory response to transitions between signal frequencies has been examined through a number of tests. According to the results of measurement within a frequency .region of 850-1130 Hz, an equation (τ△F=1-2) to define the ambiguity region of responding to frequency transitions by human auditory system is found, where △F and τ are the difference and duration of the transition between two frequencies respectiyely. when τ△≤1, the human auditory system hardly can sense transitions between frequencies, however very clearly sense when τ△F≥2.
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