sound measuring Articles

  • Exporting sound measurement solutions to the Southern Hemisphere

    Building Export Sales in the Southern Hemisphere Simon Rehill, General Manager of Pulsar Instruments - a designer, manufacturer and supplier of world-leading occupational sound measurement solutions for 50 years - has been travelling the southern hemisphere recently catching up with some of our reputable Sales Partners in the Antipodes and South Africa. During his trip, he met with our ...


    By Pulsar Instruments Plc

  • Sound Measurement Software - Pulsar AnalyzerPlus Software Update

    Pulsar Instruments' AnalyzerPlus Software has changed. Following our customers feedback we’ve completely overhauled our licence free sound measurement software to give users a quick and simple way to download and analyse their noise data. For many customers, the most difficult thing about measurement is producing a compliant report, so our new software offers them a straight-forward way to ...


    By Pulsar Instruments Plc

  • 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 at Work Regulations - making sense of them & measuring sound

    Tips on how to measure sound and manage the noise measurement process Join the noise experts Pulsar Instruments on their face-to-face training courses and gain vital insight into how to manage the noise measurement in the workplace under the Noise at Work Regulations.  The one-day courses, delivered by Pulsar Instruments, are intended to meet the needs of those new to noise ...


    By Pulsar Instruments Plc

  • Measurement Uncertainty in Environmental Noise Measurement

    Any measurement is meaningless without an uncertainty or tolerance associated with it. All measured numbers contain errors, and as such have an associated uncertainty. Disturbing as it is to an engineer, it is actually not possible to measure anything exactly. One definition of uncertainty is “A parameter, associated with the result of a measurement that characterizes the dispersion of the ...

  • 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 ...


    By Cirrus Research plc

  • 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

  • When Sound Becomes Noise

    Music to the ears of some can equally be perceived as unwanted, irritating noise to others – as illustrated by a recent news article about a Sydney pub forced to cancel live music on Sunday afternoons after five trouble-free years ...


    By Innova Global Limited.

  • Measuring Noise Outdoors

    In recent weeks, we have received a number of calls asking for our recommendations on semi-permanent systems for measuring noise outdoors. Well, if you are specifically looking for a data logging integrating averaging sound level meter to undertake your environmental, vehicle ...


    By Pulsar Instruments Plc

  • Tackling Office Noise – The Sound Investment

    Open offices or shared offices can offer great benefits in terms of communication but they can also present challenges. We’ve all had problems with noise in the office - the incessant chatter of your colleagues ruining your concentration; people shouting over you when you are trying to have a conversation on the phone; perhaps even maintenance or construction work going on next door. ...


    By Pulsar Instruments 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 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

  • 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, ...

  • Measuring level by weight

    Measuring level or inventory by weight provides high accuracy. The weight is not affected by ingredients that foam or settle unevenly or by changes in density or the shape of the tank. Weight is weight, regardless of percent solids, bridging, rat-holing, or whether your ingredient is conductive or sound-absorbing. Because weighing is a noncontact method of measuring level, there is no chance of ...


    By Hardy Process Solutions

  • Sarakasi Theatre - room acoustical measurements and modelling

    Measuring Reverberation Time and Speech Intelligibility using Balloons and an MP3 Player as External Sound Sources The non-profit organisation Sarakasi Trust owns a theatre in Nairobi Kenya, inside the former Shan Cinema. In this theatre, youths from the city slums are trained to be acrobats, so that they learn how to make a living without having to resort to crime. Shows and concerts are ...

  • Sound Level Meter Apps – How Accurate Are They?

    There has been a growing awareness of the availability and application of sound level meter apps providing noise measurement functions. Some of these sound level meter apps have been designed to meet, when used with a suitable external microphone, compliance with the relevant instrumentation standards. The vast majority of these are available as free downloads from the Google Play Store or the ...


    By Cirrus Research plc

  • A New DIRAC Measuring Speech Intelligibility

    Speech intelligibility measurements in situations where there is a large distance between the receiver and the sound source, require the source and receiver to operate independently. While this leads more often than not to practical conflicts,DIRAC 4.0 provides a unique solution.HistorySpeech intelligibility relates to the sound intensity modulations in the talker’s voice, as ...

  • What are decibels, the decibel Scale and noise measurement units?

    What is the decibel scale The human ear is an extremely versatile and amazing hearing device. It has a clever in-built mechanism that reduces its own sensitivity as the sound level rises and it also has the remarkable ability to handle an enormous range of sound power levels. It can hear the sound of a pin dropping close-by as well as the roar of a jet engine far away.  ...


    By Pulsar Instruments Plc

  • Integrating-averaging sound level meters and Leq explained

    What is Leq? If noise levels are rapidly changing over time then the 'average level' becomes an important tool in any noise assessment, this average is called the “Equivalent Continuous Sound Level“ and is abbreviated to Leq.  Knowing the Leq is vital if you are conducting noise measurements under the Noise at Work Regulations (2005); as stated above, it is the ...


    By Pulsar Instruments Plc

  • Noise Control: a sound plan needed

    Practical advice on ways to carry out Noise Control and reduce noise at work, including how to select the correct level of hearing protection and carry out noise reduction activities. Reductions in reported cases of noise-induced hearing loss (NIHL) from noise at work appear to have taken place in recent years with a considerable fall in the number of new claims and numbers of affected workers. ...


    By Pulsar Instruments Plc

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