摘要
为实际声音的两维编码选择提供科学依据,对8名大学本科生被试,用耳机呈现声音,计算机控制进程,实验研究了6种不同频率、不同响度声音的绝对辨别能力和听觉判断绩效。得到了在声音的频率和响度双维变化下6种不同频率、不同响度声音的优先级:144Hz×60.9dB、5 553Hz×93.1dB、2 675Hz×86.6dB、299Hz×67.2dB1、289Hz×80.1dB、621Hz×73.7dB。为不同声音编码系统提出了声音选择方案。
To provide a basis for actual two- dimensional sound coding, this study explored the absolute auditory discrimination of six sound at different frequency and different loudness level. And got the selective priority of six different frequency and different loudness sound when the frequency and loudness were invariable： 144Hz × 60.9dB,5553Hz × 93. 1dB, 2675Hz × 86.6dB, 299Hz × 67.2dB, 1289Hz × 80. 1dB,621Hz × 73.7dB.
出处
《人类工效学》
2005年第3期13-15,共3页
Chinese Journal of Ergonomics
关键词
响度
频率
优先级
loudness
frequency
priority
