Spatial soundfield recording over a large area using distributed higher order microphones

Prasanga N. Samarasinghe; Thushara D. Abhayapala; M. A. Poletti

doi:10.1109/ASPAA.2011.6082297

Spatial soundfield recording over a large area using distributed higher order microphones

Prasanga N. Samarasinghe^*, Thushara D. Abhayapala, M. A. Poletti

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

10 Citations (Scopus)

Abstract

Recording and reproduction of spatial sound fields over a large area is an unresolved problem in acoustic signal processing. This is due to the the inherent restriction in recording higher order harmonic components using practically realizable microphone arrays. As the frequency increases and as the region of interest becomes large the number of microphones needed in effective recording increases beyond practicality. In this paper, we show how to use higher order microphones, distributed in a large area, to record and accurately reconstruct 2D spatial sound fields. We use sound field coefficient translation between origins to combine distributed field recording to a single sound field over the entire region. We use simulation examples in (i) interior and (ii) exterior fields to corroborate our design.

Original language	English
Title of host publication	2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2011
Pages	221-224
Number of pages	4
DOIs	https://doi.org/10.1109/ASPAA.2011.6082297
Publication status	Published - 2011
Event	2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2011 - New Paltz, NY, United States Duration: 16 Oct 2011 → 19 Oct 2011

Publication series

Name	IEEE Workshop on Applications of Signal Processing to Audio and Acoustics

Conference

Conference	2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2011
Country/Territory	United States
City	New Paltz, NY
Period	16/10/11 → 19/10/11

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10.1109/ASPAA.2011.6082297

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Samarasinghe, P. N., Abhayapala, T. D., & Poletti, M. A. (2011). Spatial soundfield recording over a large area using distributed higher order microphones. In 2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2011 (pp. 221-224). Article 6082297 (IEEE Workshop on Applications of Signal Processing to Audio and Acoustics). https://doi.org/10.1109/ASPAA.2011.6082297

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title = "Spatial soundfield recording over a large area using distributed higher order microphones",

abstract = "Recording and reproduction of spatial sound fields over a large area is an unresolved problem in acoustic signal processing. This is due to the the inherent restriction in recording higher order harmonic components using practically realizable microphone arrays. As the frequency increases and as the region of interest becomes large the number of microphones needed in effective recording increases beyond practicality. In this paper, we show how to use higher order microphones, distributed in a large area, to record and accurately reconstruct 2D spatial sound fields. We use sound field coefficient translation between origins to combine distributed field recording to a single sound field over the entire region. We use simulation examples in (i) interior and (ii) exterior fields to corroborate our design.",

author = "Samarasinghe, {Prasanga N.} and Abhayapala, {Thushara D.} and Poletti, {M. A.}",

year = "2011",

doi = "10.1109/ASPAA.2011.6082297",

language = "English",

isbn = "9781457706912",

series = "IEEE Workshop on Applications of Signal Processing to Audio and Acoustics",

pages = "221--224",

booktitle = "2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2011",

note = "2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2011 ; Conference date: 16-10-2011 Through 19-10-2011",

}

Samarasinghe, PN , Abhayapala, TD & Poletti, MA 2011, Spatial soundfield recording over a large area using distributed higher order microphones. in 2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2011., 6082297, IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, pp. 221-224, 2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2011, New Paltz, NY, United States, 16/10/11. https://doi.org/10.1109/ASPAA.2011.6082297

Spatial soundfield recording over a large area using distributed higher order microphones. / Samarasinghe, Prasanga N.; Abhayapala, Thushara D.; Poletti, M. A.
2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2011. 2011. p. 221-224 6082297 (IEEE Workshop on Applications of Signal Processing to Audio and Acoustics).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - Recording and reproduction of spatial sound fields over a large area is an unresolved problem in acoustic signal processing. This is due to the the inherent restriction in recording higher order harmonic components using practically realizable microphone arrays. As the frequency increases and as the region of interest becomes large the number of microphones needed in effective recording increases beyond practicality. In this paper, we show how to use higher order microphones, distributed in a large area, to record and accurately reconstruct 2D spatial sound fields. We use sound field coefficient translation between origins to combine distributed field recording to a single sound field over the entire region. We use simulation examples in (i) interior and (ii) exterior fields to corroborate our design.

AB - Recording and reproduction of spatial sound fields over a large area is an unresolved problem in acoustic signal processing. This is due to the the inherent restriction in recording higher order harmonic components using practically realizable microphone arrays. As the frequency increases and as the region of interest becomes large the number of microphones needed in effective recording increases beyond practicality. In this paper, we show how to use higher order microphones, distributed in a large area, to record and accurately reconstruct 2D spatial sound fields. We use sound field coefficient translation between origins to combine distributed field recording to a single sound field over the entire region. We use simulation examples in (i) interior and (ii) exterior fields to corroborate our design.

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BT - 2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2011

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Y2 - 16 October 2011 through 19 October 2011

ER -

Spatial soundfield recording over a large area using distributed higher order microphones

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