The effect of atmospheric conditions on sound propagation and its impact on the outdoor sound field control

Diego Caviedes Nozal; Franz Maria Heuchel; Finn T. Agerkvist; Jonas Brunskog

The effect of atmospheric conditions on sound propagation and its impact on the outdoor sound field control

Diego Caviedes Nozal, Franz Maria Heuchel, Finn T. Agerkvist, Jonas Brunskog

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

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Abstract

The performance of active sound field control solutions is directly dependent on the knowledge of the acoustic transfer functions between the control loudspeakers
and control areas. Outdoors, the propagation of sound and thus these transfer functions are affected by atmospheric conditions and their variation. In this work we experimentally investigate the effect of wind and temperature changes on transfer functions. We present the results of a measurement campaign, where transfer functions and weather data were gathered every 30 minutes for a time period of a week. The results show the impact of wind (up to 8 m/s) and temperature (−2^◦C to 6^◦C) variations on the sound propagation over distances of around 300 m. We discuss the results in relation to the outdoor control of sound.

Original language	English
Title of host publication	Proceedings of internoise 2019
Number of pages	10
Publisher	International Institute of Noise Control Engineering
Publication date	2019
ISBN (Print)	978-84-87985-31-7
Publication status	Published - 2019
Event	48th International Congress and Exhibition on Noise Control Engineering - Palacio Municipal de Congresos de Madrid, Madrid, Spain Duration: 16 Jun 2019 → 19 Jun 2019 Conference number: 48 https://internoise2019.org/

Conference

Conference	48th International Congress and Exhibition on Noise Control Engineering
Number	48
Location	Palacio Municipal de Congresos de Madrid
Country/Territory	Spain
City	Madrid
Period	16/06/2019 → 19/06/2019
Internet address	https://internoise2019.org/

Keywords

Outdoor sound propagation
Active control of sound

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title = "The effect of atmospheric conditions on sound propagation and its impact on the outdoor sound field control",

abstract = "The performance of active sound field control solutions is directly dependent on the knowledge of the acoustic transfer functions between the control loudspeakersand control areas. Outdoors, the propagation of sound and thus these transfer functions are affected by atmospheric conditions and their variation. In this work we experimentally investigate the effect of wind and temperature changes on transfer functions. We present the results of a measurement campaign, where transfer functions and weather data were gathered every 30 minutes for a time period of a week. The results show the impact of wind (up to 8 m/s) and temperature (−2◦C to 6◦C) variations on the sound propagation over distances of around 300 m. We discuss the results in relation to the outdoor control of sound.",

keywords = "Outdoor sound propagation, Active control of sound",

author = "{Caviedes Nozal}, Diego and Heuchel, {Franz Maria} and Agerkvist, {Finn T.} and Jonas Brunskog",

year = "2019",

language = "English",

isbn = "978-84-87985-31-7",

booktitle = "Proceedings of internoise 2019",

publisher = "International Institute of Noise Control Engineering",

note = "48th International Congress and Exhibition on Noise Control Engineering, inter.noise 2019 ; Conference date: 16-06-2019 Through 19-06-2019",

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The effect of atmospheric conditions on sound propagation and its impact on the outdoor sound field control. / Caviedes Nozal, Diego; Heuchel, Franz Maria; Agerkvist, Finn T. et al.
Proceedings of internoise 2019. International Institute of Noise Control Engineering, 2019.

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

TY - GEN

T1 - The effect of atmospheric conditions on sound propagation and its impact on the outdoor sound field control

AU - Caviedes Nozal, Diego

AU - Heuchel, Franz Maria

AU - Agerkvist, Finn T.

AU - Brunskog, Jonas

N1 - Conference code: 48

PY - 2019

Y1 - 2019

N2 - The performance of active sound field control solutions is directly dependent on the knowledge of the acoustic transfer functions between the control loudspeakersand control areas. Outdoors, the propagation of sound and thus these transfer functions are affected by atmospheric conditions and their variation. In this work we experimentally investigate the effect of wind and temperature changes on transfer functions. We present the results of a measurement campaign, where transfer functions and weather data were gathered every 30 minutes for a time period of a week. The results show the impact of wind (up to 8 m/s) and temperature (−2◦C to 6◦C) variations on the sound propagation over distances of around 300 m. We discuss the results in relation to the outdoor control of sound.

AB - The performance of active sound field control solutions is directly dependent on the knowledge of the acoustic transfer functions between the control loudspeakersand control areas. Outdoors, the propagation of sound and thus these transfer functions are affected by atmospheric conditions and their variation. In this work we experimentally investigate the effect of wind and temperature changes on transfer functions. We present the results of a measurement campaign, where transfer functions and weather data were gathered every 30 minutes for a time period of a week. The results show the impact of wind (up to 8 m/s) and temperature (−2◦C to 6◦C) variations on the sound propagation over distances of around 300 m. We discuss the results in relation to the outdoor control of sound.

KW - Outdoor sound propagation

KW - Active control of sound

M3 - Article in proceedings

SN - 978-84-87985-31-7

BT - Proceedings of internoise 2019

PB - International Institute of Noise Control Engineering

T2 - 48th International Congress and Exhibition on Noise Control Engineering

Y2 - 16 June 2019 through 19 June 2019

ER -

The effect of atmospheric conditions on sound propagation and its impact on the outdoor sound field control

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