Narrow side-branch array for duct noise control

Y. J. Tang, Shiu Keung Tang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

In this research project, a passive method of using narrow side-branches has been used for improving the sound transmission loss along ventilation duct. A microphone was installed at the end of each side-branch. While 4 other microphones were installed in front of and at the back of the array. Four settings with different tube length arrangement had been compared. Two microphones transfer method was used in calculating the sound transmission loss. The result shows that this narrow side-branch array can produce a higher transmission loss within a relatively wide frequency range. The performance of the side-branch array can improve the effect of resonance across narrow side-branch arrays and hence broaden the resonance frequency band to maximize transmission loss.
Original languageEnglish
Title of host publication42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013
Subtitle of host publicationNoise Control for Quality of Life
PublisherOAL-Osterreichischer Arbeitsring fur Larmbekampfung
Pages5811-5816
Number of pages6
Volume7
ISBN (Print)9781632662675
Publication statusPublished - 1 Jan 2013
Event42nd International Congress and Exposition on Noise Control Engineering 2013: Noise Control for Quality of Life, INTER-NOISE 2013 - Innsbruck, Austria
Duration: 15 Sep 201318 Sep 2013

Conference

Conference42nd International Congress and Exposition on Noise Control Engineering 2013: Noise Control for Quality of Life, INTER-NOISE 2013
CountryAustria
CityInnsbruck
Period15/09/1318/09/13

Keywords

  • Control
  • Duct noise
  • Side-branch array

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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