Firework Displays, Explosive Entertainment: A guide to getting the most from your firework display for designers, firers and event organisers by Smith Tom

Author:Smith, Tom
Format: epub
Publisher: Chemical Publishing Company
Published: 2011-09-01T16:00:00+00:00

Table 10.1 – Noise issues

Where possible it is sensible to try and minimise this transition. For example, it has been found that playing music in increasing volume to horses in stables prior to the display is extremely effective in masking the start of the display, thus minimising any possible distress to the animals and, often as importantly, any consequent expense. This approach works particularly well for a “normal” display, which goes on for a period and then stops. It is less effective for the intermittent use of fireworks.

There have been moves by the animal lobby to restrict the noise output from all fireworks to, for instance, 96dB — although exactly where such a measurement should be taken is not explained. The European Standard for consumer fireworks sets a maximum sound level of 120dB (AI max) at the specified safety distance of the particular firework being tested. 96dB is an entirely unrealistic level — it is roughly the same noise level of that of a large book being dropped on a wooden table measured 1m away!

The sound pressure, and hence the perceived sound level, of any firework decays with the square of the distance from the source and hence the farther away from a firework noise source the better. However, local effects, including

Wind strength and direction

Humidity

Topology of the land

Reflectiveness of local features (buildings, trees etc.)

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