Sound and Noise Monitoring

SOUND LEVEL METERS AND ANALYZERS

Sound level meters and analyzers by Brüel & Kjær are class 1 sound measurement instruments with unrivalled ease-of-use and flexibility. In fact, the latest generation of our sound measuring instruments can be directly operated with a smartphone. With the addition of our specialized apps and post-processing software, you can set up and customize your instrument for an extensive range of measurements, advanced analysis and reporting. It's been over 60 years since Brüel & Kjær invented the world's first portable sound level meter. And we still lead the industry today.

B&K 2245 WITH NOISE PARTNER

A complete class 1 sound / noise measuring solution for dedicated measurement applications. B&K 2245 is designed with task-tailored Noise Partner Apps for specific measurement applications, providing you with the tools you need to get your job done.

B&K 2245

B&K 2245 is a complete class 1 sound measuring solution with task-tailored applications for your mobile and PC. The instrument is supplied with Noise Partner, providing four instruments, each specifically designed for your job.

Type 2250

Sound level meter series features two, single-channel, class 1 sound level meters and a flexible platform that can be customized for a wide range of enviromental noise measurement tasks.

Type 2270

B&K Type 2270 Sound Level Meter is our flagship sound level meter, featuring two class 1 measurement channels for simultaneous measurement capability - with any combination of microphones and accelerometers.

WHAT IS A SOUND LEVEL METER

A sound level meter is a measuring instrument, designed to measure sound levels in a standardized way.

Commonly referred to as a sound meter, noise meter, decibel meter, or sound pressure level (SPL) meter, a sound level meter is designed to respond to sound in approximately the same way as the human ear.

The purpose of a sound level meter is to give objective, reproducible measurements of sound pressure levels (SPL).

MEASUREMENT APPLICATIONS

Sound level meters and analyzers are used to measure and manage noise from a variety of sources. They are often employed in environmental noise assessment from sound sources, such as industrial plants, road and rail traffic, and construction work.

In urban environments, noise pollution - or excessive noise exposure - directly affects the people who live and work in the affected areas. To ensure noise regulations are followed, noise is measured from a variety of sources as sports events, outdoor concerts, parks, and residential- or commercial neighbours. Each sound/noise source is defined by its own set of characteristics, which can pose challenges for the professionals assessing them.

Common measurement applications

Room and building acoustics
Sound power and noise source identification
Assessing workplace noise and OHS evaluations
Environmental noise measurements

HOW DOES A SOUND LEVEL METER WORK?

At its very core, a sound level meter basically consists of a microphone, a preamplifier, a signal processing unit, and a display.

The most suitable type of microphone for a sound level meter is a condenser microphone, which combines precision with measurement reliability. The microphone converts the sound signal to an equivalent electrical signal. The electrical signal produced by the microphone is at a very low level and must be enhanced by a preamplifier, before reaching the main processor.

Signal processing applies frequency weightings and time weightings to the signal, as specified by international standards such as IEC 61672 – 1, which a sound level meter complies with.