OTL-3.0 is the first acoustical software application to include a multilayered structure builder based on the Transfer Matrix Method which calculates surface impedance, sound absorption coefficient and sound transmission loss in structures or materials. It is the first ever acoustics software to apply spherical wave propagation over impedance surfaces. This approach enables the calculation of non-common acoustical phenomena such as surface waves and ground waves. Such waves have great impact on the simulation of outdoor sound propagation but also room acoustics, especially at grazing incidence.
With the coming next year of Olive Tree Lab – Building, the software applications for the calculation of building acoustics, sound transmission and radiation in buildings and structures, the OTL-Suite will provide a complete unique approach in solving most of the problems encountered by professionals in their work.