Audibility of dispersion error in room acoustic finite-difference time-domain simulation in the presence of absorption of air

Jukka Saarelma, Lauri Savioja

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)
115 Downloads (Pure)

Abstract

The finite-difference time-domain method has gained increasing interest for room acoustic prediction use. A well-known limitation of the method is a frequency and direction dependent dispersion error. In this study, the audibility of dispersion error in the presence of air absorption is measured. The results indicate that the dispersion error in the worst-case direction of the studied scheme gets masked by the air absorption at a phase velocity error percentage of 0.28% at the frequency of 20 kHz.

Original languageEnglish
Pages (from-to)EL545-EL550
Number of pages6
JournalJournal of the Acoustical Society of America
Volume140
Issue number6
DOIs
Publication statusPublished - 1 Dec 2016
MoE publication typeA1 Journal article-refereed

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