Sound zones: On the effect of ambient temperature variations in feed-forward systems

Martin Olsen*, Martin Bo Møller

*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

18 Citations (Scopus)

Abstract

The precondition for realizing personal sound zones, relying on multichannel feed-forward control, is the robustness in the characterization of the sound field inside the control regions. Achieving high separation depends on the ability to accurately estimate the acoustic transfer functions from a set of control loudspeakers to the zones. In this paper, the assessment of ambient temperature variations is based on a front-to-rear scenario at low frequencies in a car cabin. Experimental studies in a production vehicle show significant performance decrease, when the temperature conditions in the playback situation differ from those present during the setup procedure. The main cause of the mismatch in the two sets of acoustic transfer functions is analyzed and potential compensation strategies are discussed accordingly.

Original languageEnglish
Title of host publication142nd Audio Engineering Society International Convention 2017
PublisherAudio Engineering Society
Publication date2017
Pages1009-1018
Article number9806
ISBN (Print)9781510843523
Publication statusPublished - 2017
Event142nd Audio Engineering Society International Convention 2017, AES 2017 - Berlin, Germany
Duration: 20 May 201723 May 2017

Conference

Conference142nd Audio Engineering Society International Convention 2017, AES 2017
Country/TerritoryGermany
CityBerlin
Period20/05/201723/05/2017

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