News

• Fixed problem with orthotropic materials when , is the decimal separator. • Updated the materials lists • Added warning message about mixing non-isotropic layers. • Changed algorithms so that the abrupt transition in mid frequencies when connecting materials of widely different critical frequency is removed or reduced. • For double masonry panels prevent timber or steel studs inducing panel modes. • Added an input field into Settings so that the user can enter the Company name (which can be lost after updates) • Fixed error when calculating TL of thin porous materials (TL at low frequencies was set to 0 dB which was not correct) • User lists (materials, profiles, glazing, floor covers and porous absorbers) include regional sensitivity and can now be filtered by region, similar to Insul lists • Updated list items counter • Minor updates to the Material’s Editor interface and functions to improve usability

In version 3.5 of Olive Tree Lab, the following changes have been incorporated: 1. Bug Fixes. 2. Fast ray tracing method has been incorporated in indicative room acoustics calculations. Your software should automatically update if you have the “Automatically Check for Updates” enabled. If not, please check for the latest Update through the Updates menu.

Version v3.3 contains the following: • Bug fixes. • Redesigned Multilayered Structure Builder • New enhanced room acoustics calculations In brief, beyond the usual bug fixes we have made some usability enhancements on the Multilayered Structure Builder and we have introduced a new hybrid algorithm for the calculation of the room acoustics parameters. The new algorithm is much simpler to use since it doesn’t require complicated termination criteria to be set by the user, while it also features an “Auto” mode which works well for most of the cases.