摘要
虚拟听闻环境是模拟封闭系统的听音效果,能给人一种身临其境的感受。提出了用微机再现封闭系统脉冲响应,并设计了以预先给定的封闭系统刺猬图的数据库资料和双耳传输函数为仿真模型,将输进系统的声音信号按照模型对左右声道分别进行各自的时间延迟和大小衰减变化,模拟直达声和随后众多的反射声的双耳效果,最后送入耳机,输出双耳信号的全过程。从而获得音质效果主观感受的一种方法,为评价音质效果及煤矿噪声和谐化控制提供一种手段。
A suppositional environment is hearing effect of a simulated closed system to provide a feeling as in the environment. A pulse effect of the closed system can be displayed by a personal computer. The paper designed the hedgehog picture database information of the preset closed system and the double ears transmission functions as a simulation model, which could make the sound signal of the input system for the left and right sound channel to have its time delay and reduction changes. The simulated sound and late multi reflected sound reached to the double ears effect. Then the sound would be set the earphone and that would be the full process of the double ear signal. Therefore a method of the sound effect subjective feeling was obtained and could be means to assess the sound quality effect, mine noise and harmonized control.
出处
《煤炭科学技术》
CAS
北大核心
2006年第7期1-3,共3页
Coal Science and Technology
基金
河北省教育厅科研项目(2004310)
关键词
声场模拟
噪声仿真
音质评价
simulation of sound field
noise simulation
sound quality assessment
