The characteristics of acoustic line array prototypes for scale model experiments

K. E. Piippo, Shiu Keung Tang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

The sound fields created by three different settings of a 5 m long linear loudspeaker array were studied experimentally in the present investigation in an attempt to find out a method to produce a reasonable sound field for scaled down model experiments. The first setting was with all the loudspeakers facing vertically upward, while the second setting was with all the loudspeakers facing the horizontal. The last one resembled the first setting but the loudspeakers were put inside a small partial enclosure whose opening was facing vertically upward. Results show that the last setting can produce a sound field with characteristics close to those of a two-dimensional sound field. The second setting results in a sound directivity pattern relevant to that of the measured A-weighted traffic noise.
Original languageEnglish
Pages (from-to)884-888
Number of pages5
JournalApplied Acoustics
Volume72
Issue number11
DOIs
Publication statusPublished - 1 Nov 2011

Keywords

  • Scale model
  • Sound source

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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