沈阳工业大学学报2017，Vol.39Issue(1)：55-60,6.DOI:10.7688/j.issn.1000-1646.2017.01.11
基于镜像源方法的室内声场脉冲响应仿真
Simulation for impulse response of room acoustic field based on image source method
摘要
Abstract
In order to solve the problem that the accuracy in describing the sound quality characteristics of acoustic field based on the impulse response of room acoustic field is not high,the classical image source method (ISM)was taken as the core,and the improved algorithms based on the transformation frequency domain and reflection coefficient were discussed.In addition,the rectangular space was taken as the specific example,the receiving points and sound source locations were given,and the impulse response of room acoustic field was simulated with the computer simulation.According to different parameters,the various algorithms were analyzed.In addition,the energy decay curve (EDC)and room reverberation time (RT) were estimated.The results show that the improved algorithm based on transform frequency domain and reflection coefficient has higher accuracy and reliability.关键词
室内声场/脉冲响应/音质特性/镜像源方法/变换频域/反射系数/能量衰减曲线/混响时间Key words
room acoustic field/impulse response/sound quality characteristic/image source method/transform frequency domain/reflection coefficient/energy decay curve/reverberation time分类
信息技术与安全科学引用本文复制引用
郭莹,闫美辰..基于镜像源方法的室内声场脉冲响应仿真[J].沈阳工业大学学报,2017,39(1):55-60,6.基金项目
国家自然科学基金资助项目（61102123）；辽宁省教育厅优秀人才资助项目（LJQ2014011）；辽宁省教育厅一般项目（L2014041）；沈阳市科技局工业攻关项目（F14－073－2－00）． （）
