Visualization of sound field in semi-closed room using finite-difference time-domain method

Dongdong Lu, Xiangyang Zeng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper illustrates the visualization method of transient sound propagation in 3-dimensional semi-closed sound field in which a rectangular shape of room is modeled by applying the finite-difference time-domain (FDTD) method. As a direct time-domain simulation the technique of FDTD owns unique advantage in solving acoustic problems in closed and semi-closed rooms. To ensure the accuracy of the FDTD, some attention is paid in this paper on the key problems such as: numerical stability, numerical error, boundary condition, and the excitation signal. This paper uses slicing to visualize the 3-dimensional semi-closed sound field, and that validity is proved by the visualization of a 2-dimensional semi-closed sound field.

Original languageEnglish
Title of host publicationMan-Machine-Environment System Engineering - Proceedings of the 16th International Conference on MMESE
EditorsShengzhao Long, Balbir S. Dhillon
PublisherSpringer Verlag
Pages303-310
Number of pages8
ISBN (Print)9789811023224
DOIs
StatePublished - 2016
Event16th International Conference on Man-Machine-Environment System Engineering, MMESE 2016 - Xian, China
Duration: 21 Oct 201623 Oct 2016

Publication series

NameLecture Notes in Electrical Engineering
Volume406
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference16th International Conference on Man-Machine-Environment System Engineering, MMESE 2016
Country/TerritoryChina
CityXian
Period21/10/1623/10/16

Keywords

  • Boundary condition
  • Finite-difference time-domain (FDTD)
  • Semi-closed room
  • Visualization

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