sound level meter Articles

  • Recording audio with level triggers - Sound Level Meters

    Recording audio from a sound level meter measurement is sometimes necessary. Perhaps you need to listen to identify the source of a noise or for post-processing – or even to play back to a project stakeholder. If a measurement is short, it’s easy enough to record audio for an entire measurement and afterward crop the relevant parts. However, measuring for days, weeks or months, ...

  • CASELLA ENHANCES CEL-630 SOUND LEVEL METERS

    Addition of "Voice Recording" functionality allows user to annotate a measurement and eliminate the need for written notes. Following the launch earlier this year of its ground breaking CEL-630 series of exciting new sound level meters, Casella CEL (www.casellameasurement.com; 01234 844100), has made a number of enhancements that will ...


    By Casella

  • What is a Data Logging Sound Level Meter?

    Looking to buy a sound level meter? You’ll probably see the term “data logging sound level meter” quite frequently. But what exactly is a data logging sound level meter and what does it mean for your noise measurements? Sound level meters have come a long way since Cirrus starting manufacturing their own models in the 1970s. The advances in computing technology has made it far ...


    By Cirrus Research plc

  • What to look for when buying a sound level meter

    Sound level meters: a matter of class  Since sound level meters, or slm's were invented, they have existed in various grades of accuracy.  Today, accuracy is referred to as 'Class' and the reason behind all this rests with the ...


    By Pulsar Instruments plc

  • 50th anniversary of world`s first sound level meter

    Sound Level Meter Celebrates 50th Anniversary 2010 is the year we celebrate the 50th anniversary of Type 2203, the mother of all sound level meters. It was the world’s first precision hand-held and transitorised sound level meter. Produced for 21 years, it sold a record number of 17300 units. With its upgrades Type 2204 (Impulse time constant) and 2209 (peak detector), it accounted for a ...

  • How Often You Should Calibrate A Sound Level Meter

    Do you calibrate a sound level meter frequently? Most sound level meter users know they must calibrate their sound level meters but a questions I frequently get asked if “how often?” Here’s my best practice advice so you can calibrate with confidence. What Do We Mean by Sound Level Meter ...


    By Cirrus Research plc

  • Nottinghamshire County Council Chooses Casella Sound Level Meter Kits

    When Nottinghamshire County Council needed to upgrade its 20-year-old noise monitoring equipment, it made sense to choose two of the latest high performance 63x series sound level meter kits from previous supplier, Casella - leading global specialist in occupational health and environmental risk management solutions Nottinghamshire County Council is the Minerals and Waste Planning Authority ...


    By Casella

  • 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 ...


    By Cirrus Research plc

  • Noise 101: What is Equivalent Continuous Sound Level (Leq)?

    For anyone that is measuring sound, you’ve probably come across the term Leq or Equivalent Continuous Sound Level. But what is it and how can it help us when measuring noise with a sound level meter? Setting the Scene Imagine you work on a busy construction site that is operating all day. You have diggers, cranes, trucks and other ...


    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 ...

  • Casella intrinsically safe TUFF personal air sampling pump and dBadge sound level meter are a hit down under with Australian department of defence

    Following a competitive tender process, the Australian Department of Defence has taken delivery of 180 TUFF personal air sampling pumps and 180 CEL-350 dBadge personal noise dosimeters from Casella CEL (www.casellameasurement.com; 01234 844100), leading global specialist in industrial hygiene and occupational health monitoring equipment. Ronald Azar, ...


    By Casella

  • How to Set Up an Outdoor Sound Monitoring Kit

    What do demolition sites, construction, industrial and mechanical equipment, outdoor events, transportation facilities, traffic, and air crafts have in common? They all cause noise pollution. Environmental noise can cause adverse effects to those around it which is why it is critical monitor. At RAECO Rents we make outdoor sound monitoring easy! ...


    By Raeco Rents

  • Are Those Inexpensive iPad Sound Measurement Apps Any Good?

    Are those inexpensive iPad sound measurement apps any good? Are they as accurate as a properly calibrated $2,000 type 2 sound level meter? Let's review three separate studies, and an article: Study #1 In early 2014, NIOSH reviewed 192 sound measurement apps. NIOSH concluded, ...

  • 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 ...

  • The Function of an Ultrasonic Flow Meter

    Running a water management operation requires taking a wide range of measurements. In addition to measuring the flow in your system, many systems must measure the water level of their channel, and one of the best tools for accomplishing this goal is an ultrasonic flow meter. ...


    By TRACOM Inc.

  • Police Use Casella Equipment To Assess Noise Levels

    Leicestershire Police has upgraded its noise monitoring equipment, selecting a Casella Health & Safety Kit in order to help to protect its officers. A global specialist in occupational health and environmental risk management solutions, Casella has supplied a 62x series sound level meter and a dBadge Noise Dosimeter to the regional police force, both of which are known to be easy to use, ...


    By Casella

  • Reducing noise levels through engineering controls

      It"s fairly easy to control personal exposure to noise by limiting exposure time or using hearing protectors like ear plugs or ear muffs.  Engineering controls are usually applied to the machinery that produces noise. Imagine a 200 foot x 175 foot manufacturing facility with a 30 foot high ceiling.  In this building are a variety of cut-off saws, grinders, millers and other ...

  • Clutching At Straws to Come Up With Noise Level Solution

    The UK is renowned for its rich heritage in hosting outdoor festivals, whether it be music or literary, through to farming, food or catering to even more niche audiences. But every festival is unique and, no matter how large or small, they bring with them their own issues when it comes to health & safety and noise related ...


    By Cirrus Environmental

  • Uncertainties in Environmental Noise Assessments - ISO 1996 - Effects of Instrument Class and Residual Sound

    ISO/DIS 1996-2.2 (2005) “Acoustics — Description, assessment and measurement of environmental noise — Determination of environmental noise levels” contains guidelines on assessing the uncertainties of the determined sound pressure levels. This depends on the sound source, measurement time interval, weather conditions, distance from the source, measurement method and instrumentation. Guidelines on ...

  • Sea Level Rise: Risk and Resilience in Coastal Cities

    Introduction One of the most dire impacts of anthropogenic climate change is a rise in the global sea level caused by the melting of glaciers and land-based ice caps, as well as a smaller increase from expansion due to the higher temperature of the water itself.  Unlike some other predicted effects of climate change, this impact has already been observed for some time.  Indeed, ...


    By Climate Institute

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