Archive | 2011

Windows 7 USB Connectivity with Cirrus noise measurement instruments

If you are upgrading your PC to Windows 7 and you are using a USB connection to download measurements, you may need to update the drivers to allow your software to communicate with your instrument. The information in this Technical Note covers the main instrument ranges and software packages and the steps needed to upgrade or update existing drivers.

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Enter our 2012 Noise in Action Photography Competition

We’€™re looking for interesting, unusual and imaginative images of €˜Noise in Action to feature in the calendar. This could be anything from an image of our products being used in obscure or picturesque places to a photograph creatively illustrating noise, noise measurement or the impact of noise. The first prize is a £150 Amazon voucher with the image featured on the Read More…

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Windows 7 Drivers for the Sunix RS232 – USB Adaptor

Some older Cirrus sound level meters and doseBadge Reader units that had an RS232 data output were supplied with a converter to allow the instruments to be used with a USB connection. This converter is the Sunix UTS1009B. The drivers supplied with this converter were compatible with Windows XP. If you have upgraded your PC to Windows Vista or Windows Read More…

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Video – Find out how simple to use the Trojan Noise Recorder is.

We’ve uploaded a new video that shows how simple our Trojan Noise Nuisance Recorder is to use. You can find this video on YouTube: [youtube]http://www.youtube.com/watch?v=7Ux_a1njMx8[/youtube] or you can view it on our new video website at www.cirrusresearch.tv. Happy viewing!   Here is the text transcription for our video Trojan Noise Nuisance Recorder Transcription This is the cirrus Trojan the most Read More…

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Influences of weather, damage and ageing on the performance of outdoor microphone windshields

Influences of weather, damage and ageing on the performance of outdoor microphone windshields

Windshields fitted to outdoor measuring microphones serve a dual purpose – to reduce wind-generated noise, and to protect the delicate microphone from damage by environmental factors such as rain, ice and dust. However, the presence of a windshield inevitably affects the directional and frequency responses of the measuring system. This paper presents results of measurements on the directional and frequency Read More…

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Motorbike exhaust sound levels for track and race days – An overview from a rider

As a motorbike track day enthusiast and rider myself, I have friends regularly asking me for advice when it comes to what is the maximum sound level their bike exhaust noise level can be. When I reply with the question, “what circuit are you racing at?” they seem surprised that this is relevant and that I was unable to provide Read More…

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New Training Course Dates for 2012

We’ve added 3 new dates for in 2012 our Cirrus Product Training Courses (CPTC). These are: Wednesday 14th March 2012 The East Midlands Conference Centre Thursday 29th March 2012 Castle Combe Circuit Wednesday 4th April 2012 Oulton Park Circuit, Cheshire Wednesday 11th April 2012 Brands Hatch Circuit, Kent For more information, click here or visit our website at www.cirrusresearch.co.uk/training/

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Job vacancy at Cirrus – IT Supervisor

We have a new job vacancy at Cirrus, an IT Supervisor. Reporting to the Managing Director, this role requires taking full operational responsibility for the company’s IT infrastructure and to provide IT support and development across our group of companies. The ideal candidate should be self-motivated and should be comfortable presenting to small groups of internal staff, be personable, self-organised Read More…

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Noise levels from fireworks – a very unscientific measurement!

This year, Bonfire Night (5th November for anyone who doesn’t know) fell on a Saturday this year and despite the forecast of rain, myself and my colleagues Gill Cussons, Justin Barker and Nigel Palmer braved the weather with the aim of measuring the noise levels at our local fireworks displays. We didn’t set out any rules as to where these Read More…

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Noise Induced Hearing Loss – An Introduction

There are over an estimated 9 million hard of hearing individuals in the UK (source: Action On Hearing Loss (RNID), 2005 survey). The overwhelming reasons for hearing loss are listed as being age-related and noise-related, very much in-line with other Western world countries. The big difference is that while age-related hearing loss is a natural process that we can do Read More…

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