摘要
列车广播系统是列车与旅客进行信息交互最重要的系统,是列车运行工作的重要组成部分,在列车车辆中占有重要的位置。随着列车设计水平的迅速发展以及人们生活水平的提高,对于广播系统的需求不仅局限于功能实现,还要求广播系统声音质量有着越来越好的表现。文章从列车广播系统测试方法的角度出发,参阅非轨道交通行业相关系统的测试标准及要求,介绍了影响声品质的主要参数,即声场不均匀度和语言清晰度。结合已经完成的列车广播系统测试情况,并考虑轨道交通车辆本身的属性和要求,探讨总结了列车广播系统中声场不均匀度和语言清晰度这两个主要参数应该满足的要求,最后总结了适用于列车环境下测试声场不均匀度和语言清晰度的试验方法,为后续形成统一的测试方法和标准提供了一定研究基础。
The train public address system is the most important system for information interaction between trains and passengers,and is an important part of train operation,occupying an important position in train vehicles.With the rapid development of train design level and the improvement of people’s living standard,people’s demand for public address system is not only limited to the realization of functions,but also requires better and better performance of sound quality.Starting from the perspective of testing methods for train public address systems,this article refers to the testing standards and requirements of related systems in non-rail transportation industries,and lists two main parameters related to sound quality,i.e.,sound field nonunifornity and speech intelligibility.Combined with the completed train public address system tests,the attributes and requirements of railway vehicles are taken into account to discuss and summarize the requirements that should be met by the two main parameters of the train public address system,namely,sound field nonunifornity and speech intelligibility.Finally,the test methods for testing sound field nonunifornity and speech intelligibility in the train environment are summarized,which provides a certain research basis for the subsequent formation of unified test methods and standards.
作者
路广涛
LU Guangtao(CRRC Qingdao Sifang Rolling Stock Research Institute Co.,Ltd.,Qingdao 266031,China)
出处
《铁道车辆》
2024年第2期94-98,102,共6页
Rolling Stock
关键词
广播系统
声品质
声场不均匀度
语言清晰度
测试方法
public address system
sound quality
sound field nonunifornity
speech intelligibility
test method
