Noise Meter Articles | Environmental XPRT

Noise Monitors and Meters

Sound level meters Description and ApplicationsThe sound level meter is a lightweight instrument for the measurement of sound pressure level (SPL) in decibels. All ANSI-approved meters meet minimum requirements that include an A-weighted network, a slow-response meter characteristic, and a fully graduated scale with measurements ranging from 80 to 130 dBA. The Type II meter is most frequently ...

Jan. 1, 1999

By U.S. Department of Labor Occupational Safety & Health Administration (OSHA)

What is reverberation time and how it is calculated?

What is the reverberation time of a room? Reverberation time is the time required for the sound to “fade away” or decay in a closed space. Sound in a room will repeatedly bounce off surfaces such as the floor, walls, ceiling, windows or tables. When these reflections mix, a phenomeon known as reverberation is created. Reverberation reduces when the reflections hit ...

Apr. 19, 2018

By Cirrus Research plc

Noise at Work, Workplace Noise and Issues with Noise

Noise at Work Regulations to Control Workplace Noise The Control of Noise at Work Regulations (2005) became effective in 2006. The Regulations are relevant to all employers who operate a noisy workplace and should be an integral part of any health and safety strategy. ...

Jun. 12, 2014

By Pulsar Instruments plc

Noise Measurement

Definitions Threshold and criterion levels The threshold level is the A-weighted sound level at which a personal noise dosimeter begins to integrate noise into a measured exposure. For example, if the threshold level on a sound level meter is set at 80 decibels (dB), it will capture and integrate into the computation of dose all noise in the employee's hearing zone that equals or exceeds 80 dB. ...

Jan. 1, 1999

Controlling Exposure to Noise at Work with Personal Noise Dosimeters

Which method is best to monitor noise: sound level meter or noise dosimeter? Controlling exposure to noise at work with noise dosimeters Our work environment has been transformed since the 1970’s with the introduction of new machinery and technical equipment designed to improve and increase general productivity. This has revolutionalised the way we operate ...

Jun. 2, 2014

By Pulsar Instruments plc

Noise Pole Power Station Noise case study

Equipment Summary Invictus Environmental Noise Pole Noise-Hub Noise Management Software Before the Cirrus System was installed we could never investigate noise complaints properly ...

Jan. 1, 2015

By Cirrus Environmental

Traffic Noise Mapping in Chile

Against this backdrop of economic change, a two-year study got underway across three Chilean cities led by the Univ. Austral. and was supported by the Chilean Ministry of the Environment. Academically titled: “Development and analysis of noise maps of three urban agglomerations using modeling software”, the study concentrated on the Chilean cities of Coquimbo – La ...

Feb. 22, 2017

By Cirrus Research plc

A Guide to Noise Measurement Terminology

There are 100s of different acoustic parameters that can be used during your noise measurements. Each parameter can tell you something different the noise you’re monitoring. How do you remember what all this noise measurement terminology means and what it does? We’ve already covered ...

Jan. 29, 2016

By Cirrus Research plc

Seeking Clarity in Noise

Environmental noise regulation can be frustrating. The noise limits, applicable measurement metrics, assessment methods and level of enforcement vary a lot by region and jurisdiction and rarely do they all align. Historically, noise emitters and sensitive receivers could afford to use distance to separate themselves. Consequently, environmental noise laws were first developed in regions with high ...

Mar. 24, 2017

By Innova Global Limited.

The Noise Doctor’s Review of 2016

2016 is rapidly coming to a close and 2017 is almost upon us. New Year is always a time for reflection. With this in mind, I reviewed all the NoiseNews updates from 2016 and can now reveal the top 10 blogs that aim to educate, inform and entertain. Are you sitting comfortably? Then let us begin. Top 10 Blogs of 2016 10. The Big Bang Theory: What You Really ...

Dec. 20, 2016

By Cirrus Research plc

Is The `Beep` Noise Pollution?

It is rare these days that you can be somewhere without noise pollution intruding on some level. Many natural noises may be welcome; a dawn chorus or waves breaking on the beach, but when it comes to man-made decibels it’s a different matter. Never mind the sounds of cars, ring tones and other noises that we take for granted, have you ever noticed how utterly surrounded we are by the humble ...

Sep. 11, 2014

By Cirrus Research plc

Noise, sound, decibels, hearing

A decibel–a measure of sound. Like all short answers, this one leaves out a lot. When we hear a sound, its because our brain has received a nerve impulse from the nerve cells in the Inner Ear, which consist of a bone, called the Cochlea because it resembles a snail shell. These cells have long “hairs” that project into fluid inside the cochlea. There is a hole in the cochlea ...

Jul. 5, 2010

By Atlantic Environmental, Inc.

In-depth workplace noise risk assessments

Don’t miss a thing with a custom-made noise measurement kit Pulsar Safety Professional System: the-all-in one solution to noise measurement Pulsar Instruments’ Safety Professional noise measurement system offer Safety, Health, Environmental and Quality (SHEQ) experts a custom-made solution for resolving their complex workplace noise risk ...

Sep. 29, 2014

By Pulsar Instruments plc

Canarina CUSTIC software · background noise · ambient noise pollution · commands 13

Bitmaps and scanned maps must be loaded into memory and then adapted to the program scale (we will make use of the Scale command). The X-Axis width (meters) in the program window can be easily changed to be able to compare both images (simulation results and background maps). Then, the X-Axis width (in meters) of the imported map and the X-Axis width (in meters) of ...

Dec. 2, 2011

By Canarina Environmental Software

What is Long Term Noise Monitoring?

It might sound simple, but long term noise monitoring can mean different things to different people. There is no standard definition for what long term noise monitoring is, but here is a summary that covers the basics. I first presented this presentation at the IOA Eastern Branch meeting and wanted to share my thoughts on what classes as long term noise monitoring. I’ll also discuss ...

Apr. 15, 2015

By Cirrus Environmental

What are the 4 Different Types of Noise?

Noise comes in all shapes, sizes and sounds. It’s part of our everyday lives but before you can accurately measure it, you need to know what the different types of noise are. Here’s my advice. Whether it’s the innocent beep, a plane flying overhead or heavy machinery in your workplace, you ...

Jan. 21, 2015

By Cirrus Research plc

Noise at Work Regulations: 10 Years On

Doesn’t time fly? It’s already been 10 years since Control of Noise at Work Regulations were introduced in the UK. But have you been following the legislation correctly? Here’s an overview of what the Noise at Work Regulations mean and some common mistakes you should be avoiding. Considering that legislation to limit ...

Apr. 7, 2015

By Cirrus Environmental

Noise at Work: Frequently asked questions

Controlling Noise at Work: Frequently asked questions Pulsar Instruments are the experts when it comes to noise at work measurement. The company was formed 45 years ago and, over the years, the team has answered numerous phone calls or met new and existing customers at Trade shows, professional meetings or in their place of work to answer their queries. Very ...

Sep. 22, 2014

By Pulsar Instruments plc

Ask The Noise Doctor: How Long will the Batteries Last in My Optimus Sound Level Meter?

Do you have questions about your noise measurement instruments that Google or Wikipedia just can’t seem to answer? Ask The Noise Doctor. I’m here to answer your most frequently asked questions. Whether it’s product or application based, I’m up to the challenge. In this article I’ll be covering battery life in the Optimus Sound Level Meter range. A Commonly Asked ...

Mar. 17, 2016

By Cirrus Research plc

Noise in the printing industry: Safeguarding the hearing of workers

Why failing to monitor noise levels could open your company to lawsuits Noise at work might be synonymous with construction and manufacturing industries but it can also be a significant problem in the printing trade. Failing to monitor and control noise levels in the printing industry can result in workers suffering from ...

Jul. 22, 2014

By Pulsar Instruments plc

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