A call for Case Study opportunities

Using Loudness Metering for Improved Management of PA System Leq Limits and Off-Site Annoyance

case study
audio
loudness
research
live events
sound systems
Author

Jonathan J Digby

Published

2026-01-24

Modified

2026-04-05

Please consider contributing to a case study if you plan on implementing the author’s Loudness Measures at any of your live events.

NoteLoudness metering for event sound systems – Case study: data gathering guidance

Improved Management of PA System Leq Limits and Off-Site Annoyance

The findings may contribute to the ‘work in progress’ updates of these influential documents:

Technical Document AESTD1007.1.20-05 : Understanding and Managing Sound Exposure and Noise Pollution at Outdoor Events, 2020. [1]

WHO Global Standard for Safe Listening Venues & Events, 2022. [2]

Research paper

Here is a link to the original research:

NoteJ.J. Digby and A.J. Hill, ‘Enhanced Sound Level Monitoring at Live Events by Measuring Audio Program Loudness,’ Proceedings of the Institute of Acoustics, vol. 46, no. 4, pp. 1–8, 2024.

If you would like to discuss any of this, or need further explanation, please get in touch using the contact form , or book an online meeting .

We thank you for your time.

Coloured engraving from 1933 of measuring the sound levels in Paris, 12th March 1933

Image: Measuring the sound levels in Paris, from ‘Le Pelerin’, 12th March 1933 (coloured engraving), Damblans, Eugene (1865-1945) / Private Collection / © Archives Charmet / Bridgeman Images

References

[1]
Hill A, editor. Technical Document AESTD1007.1.20-05 : Understanding and managing sound exposure and noise pollution at outdoor events. 2020 [accessed 2026 Mar 24]. https://www.aes.org/wp-content/uploads/2024/01/AESTD1007_1_20_05-1.pdf
[2]
WHO Global Standard for Safe Listening Venues & Events. 2022 [accessed 2026 Mar 24]. https://iris.who.int/bitstream/handle/10665/352277/9789240043114-eng.pdf?sequence=1