Noise Control
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Welcome to our dedicated web page offering advice and sales of Sound Limiting devices for the Entertainment Industry and Noise Warning Signs for Health & Safety in Industrial Applications.
Line Level Automatic Volume Controllers where the audio signal is kept under the preset decibel limit and WILL NOT cut the audio signal out completely. These can be used on DJ & Background Music systems where no live Music is played.
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Schools and colleges are also being asked to fit a sound or noise limiter in music department practice rooms in order to protect students from possible damage to pupil’s hearing and noise nuisance to other learning areas.
From April 2008 Entertainment venues must also comply with The Control of Noise at Work Regulations to ensure that employee’s hearing is protected.
Advice StageGear team members have been advising on the correct sound & noise limiting devices since 2003, so you can be sure we have experience of many venue types and situations. We will discuss your venue's specific requirements to ensure the right solution is found for you and any possible discussions with an Environmental Health Officer. We can act as the intermedary between the venue and an EHO. | Supply Only The StageGear team can supply the equipment only, including most installation materials such as audio cables and leads, and speak with your installer about any particular question they may have.
| Supply & Install. StageGear can install your sound or noise limiter, however we currently only cover Dorset, Hampshire, Surrey & London. A site survey may be necessary in order to provide an estimate to install and there may be a charge for this depending on distance and circumstances, please ask for details.
| Calibration Many Council Environmental Health Officers (EHO's), now require a certificate as evidence of your Sound or Noise Limiter working correctly and within the limits agreed between the venue and the EHO. We will provide a suitable Music System to carry out the tests and calibration, and cover Hampshire, Dorset, Surrey and London for this service. Please call for an estimate of costs for your area. |
Case Studies
Hotel Wedding Venue Noise Problem
A hotel wedding venue had complaints from its neighbours due to excessive noise levels from Mobile Discos and Live Bands. The music was played at various locations within the venue including a marquee in the grounds. The SL2000PP plug and play noise limiter was the ideal solution.
The SL2000P, designed by Stagegear Technicians in 2004 as a portable unit perfect for this application, could easily be relocated to any point that music was played. It could be set, using the included hand held decibel meter to provide a visual warning when the sound level at the neighbours property exceeded the limit for the location, and to cut off mains power from the performers equipment if they ignored the warning lights.
A large Manor House function venue who used a Marquee in the gardens for their large corporate and
wedding functions required a noise limiter for use in the temporary structure. The sound limiter had to be
able to supply a full 30Amps of mains power and provide a remote visible warning to the performers.
StageGear Ltd custom manufactured changes to the SL2000P to provide 13 amp mains socket outlets
on the front panel together with a standard 32Amp plug and suitable cable for the incoming 240v mains
supply. A SL2000LRD Large remote display using LED lamps was also supplied on a remote cable to provide
Public House in a Residential Area
A public house in a small village was about to be banned from playing music due to some complaints from neighbours regarding noise from the Live bands. They needed a noise limiter urgently to ensure the Environmental Health officer would allow a a planned event to be held that weekend. Stagegear Ltd supplied an SL2000KIT on a next day delivery to be installed quickly by their regular electrican, who did not need to be concerned that he was missing the microphone or remote indicator cables, and could use the included Hand Held sound level meter to complete the job in time.
A Fun Pub who needed to limit the volume for its installed DJ sound system as well as the PA for the Live Bands it had mid week. The DJ system had to have its overall volume limited to preset levels without the need for a complete shutdown of the music playback, and the Live music needed a system that would turn the power off to the ”back line” guitar amplifiers. StageGear Ltd recommended the Formula Sound Sentry for the Live Bands and the Formula Sound AVC2D to work between the DJ mixer and Amplifer system, these were also linked together as the noise control solution.
Industrial Manufacturing Area
A small manufacturing company had various machines and processes which produced a noise level of more than 85dB. The Factorie”s staff did not want to wear hearing protection unnecessary but the company had to comply with health and safety at work regulations. StageGear Ltd recommended and supplied a noise activated warning sign.
The sign would illuminate automatically when the noise reached a level which could cause hearing damage and workers would be alerted to the fact that hearing protection should be worn.
| Decibels | Example | ||
| Threshold of Pain | 140 | Jet Engine (75ft away) | Painful & Dangerous |
| 130 | Jet Aircraft during take off (300ft away) | ||
| Threshold of Feeling | 120 | Hard Rock Band (with amplification) | Deafening |
| 110 | Accelerating Motorcycle at a few feet away. | ||
| 100 | Car Horn at 10ft / Football Crowd / Printing Press | Very Loud | |
| 90 | Pneumatic Concrete Breaker | ||
| Threshold of hearing loss | 80 | Café with sound reflecting surfaces | Loud |
| (long term exposure) | 70 | B-757 Aircraft cabin during flight / Crackling of food wrapper (2ft away) | |
| 60 | Near Road Traffic (when greater than 55dB road & rail annoy most people) | Moderate | |
| Speech 50-70dB | 50 | Office Environment | |
| 40 | Soft Stereo Music at home | Faint | |
| 30 | Home environment without stereo, late at night | ||
| 20 | Whisper / Audiometric testing room | Very Faint | |
| 10 | Russle of leaves in breeze / Human breathing | ||
| Threshold of hearing | 0 |
Installation
Mains Switching Limiters – SL2000, Sentry, Sentry Lite
The mains switching Sound Limiter we supply can usually be installed by any Qualified Electrian and there is no particular need for specialist Audio Engineers input to install the unit.
Any Electrician used should be 17th Edition qualified and preferably (but not necessarily) a NICEIC approved contractor. You electrican should be able to source most of the items required for installation however you may need to purchase some microphone cable when buying the sound limiter.
If necessary we may be able to locate a suitable electrician in your area.
Volume Attenuation Limiters – AVC 2 / D, SPL2120, CX335
These can be installed by any competent audio engineer or technician. The important thing to know is how it will be connected into your installed sound system. IE Type of audio connectors etc.
Noise Activated Signs
Noise Activated signs can be installed and set by either and Electrician or Mantainence department. The use of a hand held sound level meter is a useful tool for ease of set up.