| 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 |
|
| 摘要点击次数: 1364 |
| 全文下载次数: 1407 |
| 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. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
