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ENVIRONMENTAL
SOUND
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| Testing Times | Auto cut-off controller | Sound Level Governors | Induction Loops | Home |
Testing times
As licensing bodies tighten up on environmental noise pollution from venues and clubs, it is becoming increasingly important to keep control over sound levels inside and outside your venue. Apart from the primary consideration of acoustic treatment to walls, windows, doors and roofs, there are also methods of controlling the level of sound being created. There are two main ways of doing this which satisfy the requirements of the Environmental Health Department.
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NEW - Now available from stock SL2000 Sound Level Controller / Sanction Limiter
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| The Sentry Mk2 does a similar job, with the warning lights and microphone all in the one box. This makes it quicker to install but must be positioned carefully so the indicators can be clearly seen by the performer(s). The Sentry 2 has connectors provided to interface with a range of equipment, plus internally selectable options to make the system as versatile as possible. Sentry can control external relays for disconnecting loudspeakers, switching passive attenuators to reduce system volume or acting as the trigger into an active attenuator system. It is microphone driven and has its own microphone built in to minimise tampering. The Sentry also incorporates the facility to operate at two different sound level thresholds which may be selected manually, by a remote key switch or similar, or automatically by a time switch (switches not supplied). This allows a venue to operate at different levels at different periods of the day. e.g. when near offices or shops. Sentry is supplied as a system ready for installation by a qualified electrical contractor. | |
Archive Products:
Audioblock Sanction Limiter (discontinued Oct 2005)
full data sheet |
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Sound Level
Governors We particularly recommend the Drawmer MX30 and DL241 models, which have brick wall peak limiters and clear status indicators. |
| Any fast acting stereo compressor limiter with an infinity ratio and preferably with a peak stop will do this job. If your venue has several different zones, a four channel version (or multiples) may be needed. DL241 full data sheet | |
For large club systems it may be desirable to limit different audio ranges (eg bass, mid, HF) separately. Many professional active crossovers or system controllers have this feature built in, so it's a good idea to check that these are correctly adjusted first. Limiters can be calibrated by trial and error or more accurately with specialist measuring equipment.
GB Audio supply both of these types of devices, wiring and tamperproof security covers. We also offer installation, calibration, measurement and analysis services to help you satisfy limits prescribed by Inspectors from the Environmental Health or Health & Safety at Work Departments. top
Drawmer have also just developed the SP2120 system controller for sound level limiting and loudspeaker protection using Drawmer's proven multi-band compression technology.
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Full SP2120 data sheet
In stock now Call us to discuss how Sentry or Drawmer products could help you. |
Induction
loop. GB Audio design and supply
Ampetronic
induction loop and
Sennheiser infra red systems which
benefit the hard-of-hearing. Systems can cover an entire room or can be limited
to a counter or box office. People can listen in by switching their hearing aid
to the "T" position or by using portable beltpacks with miniature
headphones. Sennheiser infra red systems can be used in conjunction with
standard hearing aids when used with the Sennheiser IR adaptor. They also have
the advantage of being able to transmit multi-channel audio, making them
especially suitable for simultaneous translation or audio description services.
From October 2004, all UK public buildings have to be fully accessible, including the provision of systems for the
hard-of-hearing, where appropriate.
Useful links: Environment resources / Disability Discrimination Act
