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

doi:10.1109/SAM.2018.8448689

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 proceeding › Article in proceeding › Research › peer-review

2 Citations (Scopus)

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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 language	English
Title of host publication	2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018
Number of pages	5
Volume	2018-July
Publisher	IEEE
Publication date	8 Jul 2018
Pages	331-335
Article number	8448689
ISBN (Print)	9781538647523
ISBN (Electronic)	978-1-5386-4752-3
DOIs	https://doi.org/10.1109/SAM.2018.8448689
Publication status	Published - 8 Jul 2018
Event	2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop (SAM) - Sheffield, South Yorkshire, United Kingdom, United Kingdom, Sheffield, United Kingdom Duration: 8 Jul 2018 → 11 Jul 2018

Conference

Conference	2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop (SAM)
Location	Sheffield, South Yorkshire, United Kingdom, United Kingdom
Country/Territory	United Kingdom
City	Sheffield
Period	08/07/2018 → 11/07/2018

Series	I E E E Workshop on Sensor Array and Multichannel Signal Processing
ISSN	1551-2282

Keywords

Sound Field Control
Sound Zones

Access to Document

10.1109/SAM.2018.8448689

2018_05_19_SAM_paper_Final_Submission_Martin_Jesper_Efren_SoerenAccepted author manuscript, 360 KB

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Cite this

@inproceedings{495e834d5b274fc1a321a79f8df8a985,

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",

author = "M{\o}ller, {Martin Bo} and Nielsen, {Jesper Kj{\ae}r} and {Fernandez Grande}, Efren and Olesen, {S{\o}ren Krarup}",

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doi = "10.1109/SAM.2018.8448689",

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publisher = "IEEE",

pages = "331--335",

booktitle = "2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018",

address = "United States",

note = "2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop (SAM), SAM ; Conference date: 08-07-2018 Through 11-07-2018",

}

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 et al.
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 proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - On the Influence of Transfer Function Noise on Low Frequency Pressure Matching for Sound Zones

AU - Møller, Martin Bo

AU - Nielsen, Jesper Kjær

AU - Fernandez Grande, Efren

AU - Olesen, Søren Krarup

PY - 2018/7/8

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N2 - 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.

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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M3 - Article in proceeding

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T3 - I E E E Workshop on Sensor Array and Multichannel Signal Processing

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BT - 2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018

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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). doi: 10.1109/SAM.2018.8448689

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

Abstract

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Keywords

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