OK, maybe this subject will unite more of us then the last debate I started!
More and more commonly, us pub / club muso's are being confronted with a new demon . . . namely the sound limiter, a little box mounted somewhere on the wall of a venue, with a hidden microphone, that often has a traffic light display before it very cruelly pops the mains on all of your expensive equipment at random times.
Mow, in theory, I can understand why these devices are being fitted; we are not in the business of p***ing off the neighbours (although if you move next door to a live music venue etc etc, another discussion me thinks), but the problem lies herein:
These sound limiting devices have the following undeniable flaws:
1: They don't work just on volume; they seem to be more frequency responsive, and random frequencies at that.
2: The manner in which they work can a. damage your equipment and b. cock up all of your sequences, loops, any other cpu controlled device which will reset itself if the plug is pulled.
3. There seems to be no industry standard for the way these devices are set; some can handle a full band at Motorhead levels, others will pop if an acoustic is plugged in.
So some while back, I decided to investigate the legalities of enforcing the use of such devices in venues, and just incase you think that was a pointless exercise, below is an exact cut and paste of their email reply to me:
"Your question has been passed to me to answer as my noise policy colleagues are a bit thin on the ground this week.
I assume you have looked at the draft 'good practice' guidance relating to the control of noise exposure in music and entertainment at
www.soundadvice.info. This information has been developed by an industry-lead steering group, with support from HSE. It aims to provide good practice recommendations in relation to the coming in to force from April 2008 in the music and entertainment sector of the Control of Nose at Work Regulations 2005. These replace the 1989 regulations on noise at work in this sector. The change to the 2005 regulations took place in all other sectors in 2006.
In answer to your first question, there are no industry standard settings for these noise limiters. Limiters are a known way of limiting the level of reproduced sound in entertainment venues, etc. and as such they appear in the 'good practice' guidance. But as, in the context of the Control of Noise at Work Regulations 2005,
it is for the employer in any particular venue to decide on appropriate means to reduce the noise exposure of employees to as low as reasonably practicable, so it is for the employer to decide whether to use such devices, and how to set them up in practice. In the draft 'good practice' it is noted that limiters which cut the power abruptly are not recommended. I would hope that any venue operators would be happy to discuss the use of limiters with you, and take up your offer of helping to set them up.
Your second question seems to be about environmental noise/nuisance. The regulations we are talking about here relate to noise at work, i.e. the noise exposure of employed people. There are no maximum limits for venue sound levels. What the law requires is that employers ensure that employees' hearing is protected by making sure noise exposure (averaged over a working day) is as low as reasonably practicable, and that this is done by considering and implementing technical and organisational measures. There are limits set on the daily exposure of employees, which can be complied with by the use of personal hearing protection, notwithstanding the overarching duty to reduce noise exposure.
You can find general information about the regulations on noise at work on the HSE website; have a look at our free leaflet at
http://www.hse.gov.uk/pubns/indg362.pdf. When finalised, the 'good practice' advice for employers the music and entertainment sector on managing noise risks will appear at the website mentioned above.
I hope you find the above helpful."
Timothy Ward
HM Principal Specialist Inspector (Noise & Vibration)
Health and Safety Executive
Redgrave Court, Merton Road
Bootle, Merseyside, L20 7HS
tel: 0151 951 3985
fax: 0151 951 4845
So, from the HSE of the Government's mouth as it were, there is no legislation in place.
So, as this seems to me to be pretty unlawful, I will let you in on a little secret which will let you "over ride" any such sound limiter device, for a cost of about £60.00. If you google "APC BE-550 UPS" you will find a small UPS (uninterrupted power supply) which is basically a battery back up for all your equipment. Once fully charged, you plug all your gear into one of its 6x 13a sockets, then plug the UPS into the mains at the gig where the limiter is. The result? You play too loud (or hit the random frequency that knocks the power out), and the UPS takes over for up to about fifteen minutes - plenty of time for the limiter to reset itself and give you the chance to knacker your equipment all over again. Try the following link for a distributor:
http://www.overclockers.co.uk/showproduct.php?prodid=UP-035-AP&...(BE550-UK)
And you can tell landlords you are plugged into their circuit without lying. Just protecting my gear, guv..........
Good luck, would like to hear your feedback (so to speak)!