Simulation for impulse response of room acoustic field based on image source method
GUO Ying
YAN Mei-chen
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.
Keywords：room acoustic fieldimpulse responsesound quality characteristicimage source methodtransform frequency domainreflection coefficientenergy decay curvereverberation time
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 55-60 )