Sound Field Control for Reduction of Noise from Outdoor Concerts

Heuchel F, Caviedes Nozal D, Agerkvist FT. Sound Field Control for Reduction of Noise from Outdoor Concerts. In: AES Convention 145. Audio Engineering Society; 2018. Paper 10107. Available from: https://aes.org/publications/elibrary-page/?id=19833

@inproceedings{Heuchel2018_19833,
  author = {Heuchel, Franz and Caviedes Nozal, Diego and Agerkvist, Finn T.},
  title = {{Sound Field Control for Reduction of Noise from Outdoor Concerts}},
  booktitle = {AES Convention 145},
  note = {Paper 10107},
  year = {2018},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19833}
}

TY  - CPAPER
TI  - Sound Field Control for Reduction of Noise from Outdoor Concerts
AU  - Heuchel, Franz
AU  - Caviedes Nozal, Diego
AU  - Agerkvist, Finn T.
T2  - AES Convention 145
M1  - Paper 10107
PY  - 2018
DA  - 2018/10/06
UR  - https://aes.org/publications/elibrary-page/?id=19833
PB  - Audio Engineering Society
LA  - en
AB  - We investigate sound field control based on the concept of sound zones for the mitigation of low frequency noise from outdoor concerts to the surrounding area by adding secondary loudspeakers to the existing primary sound system. The filters for the secondary loudspeakers are the result of an optimization problem that minimizes the total sound pressure level of both primary and secondary loudspeakers in a sensitive area and the impact of the secondary loudspeakers on the audience area of the concert. We report results from three different experiments with increasing complexity and scale. The sound field control system was reducing the sound pressure level in the dark zone on average by 10 dB below 1 kHz in a small scale experiment in anechoic conditions, by up to 14 dB in a controlled large scale open-air experiment and by up to 6 dB at a pilot test at a music festival.
ER  -