Delivering accurate noise level & direction measurements
When a travelling sound wave approaches an array of microphones, it reaches each microphone at a slightly different time. These timing differences are used to find the wave’s arrival direction.
How does it work?
BarnOwl® uses 3 microphones spaced 500mm apart. The microphone signals are digitised using 24-bit, state-of-the-art A-D conversion.
Specially-developed, optimised signal analysis software allows inter-microphone time differences (and therefore source directions) to be evaluated for a 1-second noise sample while the next sample is being acquired.
BarnOwl® can therefore provide real time tracking of noise sources, with source locations displayed on a monitor and/or saved for later analysis.
The system can simultaneously record total noise, and a filtered signal excluding high-frequency sources such as insects.
Available in stand alone and multi-unit networked versions, BarnOwl® can be used for spot measurements or site wide monitoring of large industrial sites.
More details, including the tested accuracy and reliability of the system and technical specifications can be found on the Brochures & Data sheets page.

BarnOwl Microphones

BarnOwl® Microphones
Muswellbrook Coal