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.
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 | Spain |
| City | Madrid |
| Period | 16/06/2019 → 19/06/2019 |
| Internet address |
Keywords
- Outdoor sound propagation
- Active control of sound
Cite this
Caviedes Nozal, D., Heuchel, F. M., Agerkvist, F. T., & Brunskog, J. (2019). The effect of atmospheric conditions on sound propagation and its impact on the outdoor sound field control. In Proceedings of internoise 2019 International Institute of Noise Control Engineering.