On the Influence of Transfer Function Noise on Low Frequency Pressure Matching for Sound Zones

Martin Bo Møller, Jesper Kjær Nielsen, Efren Fernandez Grande, Søren Krarup Olesen

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

2 Citations (Scopus)
65 Downloads (Pure)

Abstract

Controlling the sound field in a room with loud-
speakers, requires information about how each loudspeaker
radiates sound to the regions of interest. This information can
be estimated by in-situ measurements of the transfer functions.
However, noise in the estimates can severely deteriorate how
well the sound field is controlled. Accurate transfer functions are
especially important for sound zones, which rely on destructive
interference between multiple loudspeakers. In the presented
study, transfer function measurements from eight 10” woofers
were repeated 30 times in a room. Pressure matching was used
to create sound zones between 20-300 Hz. The performance is
evaluated for individual and averaged transfer function measure-
ments. Additionally, the effect of Tikhonov regularization based
on the estimated noise in the transfer functions is examined.
Original languageEnglish
Title of host publication2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018
Number of pages5
Volume2018-July
PublisherIEEE
Publication date8 Jul 2018
Pages331-335
Article number8448689
ISBN (Print)9781538647523
ISBN (Electronic)978-1-5386-4752-3
DOIs
Publication statusPublished - 8 Jul 2018
Event2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop (SAM) - Sheffield, South Yorkshire, United Kingdom, United Kingdom, Sheffield, United Kingdom
Duration: 8 Jul 201811 Jul 2018

Conference

Conference2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop (SAM)
LocationSheffield, South Yorkshire, United Kingdom, United Kingdom
CountryUnited Kingdom
CitySheffield
Period08/07/201811/07/2018
SeriesI E E E Workshop on Sensor Array and Multichannel Signal Processing
ISSN1551-2282

Keywords

  • Sound Field Control
  • Sound Zones

Cite this

Møller, M. B., Nielsen, J. K., Fernandez Grande, E., & Olesen, S. K. (2018). On the Influence of Transfer Function Noise on Low Frequency Pressure Matching for Sound Zones. In 2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018 (Vol. 2018-July, pp. 331-335). [8448689] IEEE. I E E E Workshop on Sensor Array and Multichannel Signal Processing https://doi.org/10.1109/SAM.2018.8448689
Møller, Martin Bo ; Nielsen, Jesper Kjær ; Fernandez Grande, Efren ; Olesen, Søren Krarup. / On the Influence of Transfer Function Noise on Low Frequency Pressure Matching for Sound Zones. 2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018. Vol. 2018-July IEEE, 2018. pp. 331-335 (I E E E Workshop on Sensor Array and Multichannel Signal Processing).
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title = "On the Influence of Transfer Function Noise on Low Frequency Pressure Matching for Sound Zones",
abstract = "Controlling the sound field in a room with loud-speakers, requires information about how each loudspeakerradiates sound to the regions of interest. This information canbe estimated by in-situ measurements of the transfer functions.However, noise in the estimates can severely deteriorate howwell the sound field is controlled. Accurate transfer functions areespecially important for sound zones, which rely on destructiveinterference between multiple loudspeakers. In the presentedstudy, transfer function measurements from eight 10” wooferswere repeated 30 times in a room. Pressure matching was usedto create sound zones between 20-300 Hz. The performance isevaluated for individual and averaged transfer function measure-ments. Additionally, the effect of Tikhonov regularization basedon the estimated noise in the transfer functions is examined.",
keywords = "Sound Field Control, Sound Zones",
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Møller, MB, Nielsen, JK, Fernandez Grande, E & Olesen, SK 2018, On the Influence of Transfer Function Noise on Low Frequency Pressure Matching for Sound Zones. in 2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018. vol. 2018-July, 8448689, IEEE, I E E E Workshop on Sensor Array and Multichannel Signal Processing, pp. 331-335, 2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop (SAM), Sheffield, United Kingdom, 08/07/2018. https://doi.org/10.1109/SAM.2018.8448689

On the Influence of Transfer Function Noise on Low Frequency Pressure Matching for Sound Zones. / Møller, Martin Bo; Nielsen, Jesper Kjær; Fernandez Grande, Efren; Olesen, Søren Krarup.

2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018. Vol. 2018-July IEEE, 2018. p. 331-335 8448689 (I E E E Workshop on Sensor Array and Multichannel Signal Processing).

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

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AB - Controlling the sound field in a room with loud-speakers, requires information about how each loudspeakerradiates sound to the regions of interest. This information canbe estimated by in-situ measurements of the transfer functions.However, noise in the estimates can severely deteriorate howwell the sound field is controlled. Accurate transfer functions areespecially important for sound zones, which rely on destructiveinterference between multiple loudspeakers. In the presentedstudy, transfer function measurements from eight 10” wooferswere repeated 30 times in a room. Pressure matching was usedto create sound zones between 20-300 Hz. The performance isevaluated for individual and averaged transfer function measure-ments. Additionally, the effect of Tikhonov regularization basedon the estimated noise in the transfer functions is examined.

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Møller MB, Nielsen JK, Fernandez Grande E, Olesen SK. On the Influence of Transfer Function Noise on Low Frequency Pressure Matching for Sound Zones. In 2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018. Vol. 2018-July. IEEE. 2018. p. 331-335. 8448689. (I E E E Workshop on Sensor Array and Multichannel Signal Processing). https://doi.org/10.1109/SAM.2018.8448689