Olive Tree Lab Terrain
Olive Tree Lab Terrain is a noise prediction software
which simulates and predicts Outdoor Sound Propagation and Noise Barrier
efficiency, taking into account geometrical spreading, atmospheric absorption,
atmospheric turbulence, spherical wave complex ground impedance, reflection and
diffraction effects of natural or man-made objects. The results are displayed
as level vs frequency or level vs spatial mapping.
Based on state of the art calculation methods and ray
detection techniques, which demand computational power and time, Olive Tree Lab
Terrain is aimed at small scale projects as opposed to large noise mapping
software. It addresses mostly fixed noise sources within a small area where one
has control over most of the acoustic parameters involved in the sound
calculations. It is based on high frequency resolution calculations, as opposed
to just 1/3 octave band analysis, which can also be seen in 1/3 and 1/1 octave
bands after being appropriately averaged. OTL Terrain can be used for acoustics
engineering, acoustics research and educational purposes. Olive Tree Lab
Terrain can assist in designing acoustic solutions based on certain noise
criteria in real time response, based on preliminary calculations during the
OTL Terrain is a calculations application based on the
following methods and their limitations (Reference List):
In this version no atmospheric refraction calculations are
Version 1.4 includes ISO 9613-2 calculation methods.
Terrain Use Cases
Even though Olive Tree Lab Terrain was initially intended to be used as a software application for noise barriers design, practice and daily experience of acoustic has revealed a number of other acoustics related areas that Terrain is remarkably useful. Olive Tree Lab Terrain has proven to be a reliable acoustics software application can be used for noise assessment in small and medium size project, wind turbine noise prediction and small to medium size noise mapping .
Small to Medium Sized Projects
In contrast with traditional noise mapping software
applications which focus of city mapping and large areas assessment, Olive Tree
Lab is well suited for small to medium projects like problems between
neighboring premises, industrial noise and outdoor noise prediction.
Wind Turbine Noise
Acoustic engineers found that Terrain is very useful
software application when it comes to deal with wind turbine noise. Wind
turbine noise is an important issue that must be considered during the design
and placement of wind turbines. Olive Tree Lab Terrain can assist in assessing
and dealing with wind turbine noise.
Olive Tree Lab Terrain can be used for small and medium
scale noise mapping. Terrain can be used for neighborhood noise mapping,
industrial noise mapping and noise mapping between neighboring premises.