Equalization of Wood-Panel Loudspeakers
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A4 Artikkeli konferenssijulkaisussa
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Date
2021-06
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Language
en
Pages
8
3-10
3-10
Series
18th Sound and Music Computing Conference, Proceedings of the sound and music computing conferences
Abstract
This paper studies the acoustic properties of a tree orchestra consisting of four wood-panel loudspeakers and proposes an equalizer (EQ) design for each loudspeaker. Two design strategies for graphic equalization on Bark bands are considered: a single- and a multi-point approach. Asymmetries in the wood-panel speakers cause their magnitude responses to vary so much in different directions that the multi-point averaged EQ gets smoothed and does not have much effect. A single-point EQ, designed based on the frontal response, changes the magnitude response more and improves the overall shape of the response substantially in front of the panels. The magnitude responses at other measurement points are also improved. The EQ does not attenuate the ringing of the wood-panel modes much, thus retaining their resonant quality. The orchestra of equalized wood-panel speakers is used in a science center to showcase acoustic properties of wood.Description
Keywords
Acoustic measurements, audio signal processing, audio systems, digital signal processing, equalizers
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Citation
Liski, J, Rämö, J, Välimäki, V & Lähdeoja, O 2021, Equalization of Wood-Panel Loudspeakers . in D A Mauro, S Spagnol & A Valle (eds), SMC 2021 - Proceedings of the 18th Sound and Music Computing Conference : SMC 2021 Reconnecting Spaces . Proceedings of the sound and music computing conferences, Sound and Music Computing Association, pp. 3-10, Sound and Music Computing Conference, Virtual, Online, 29/06/2021 .