Spectrum analysis software EasyHVSR

processseismology

SOFTWARE FOR HVSR PROCESSING Easy HVSR allows the analysis of the spectral ratio of microtremors recorded with a single-station. The simplicity of use and speed of execution of the calculations allow the user to get immediate results in the estimation of: resonance frequency, stratigraphic profile and equivalent shear wave velocity Vs30, all according to the guidelines suggested by the SESAME project. The software imports SEG2, SAF and ASCII files. Customizing analysis The user can choose different ways in which process the data, choosing the more appropriate methods for the directional sum of the traces in the horizontal directions, for the smoothing and for the frequency band to be analyzed. Among the directional sums available the user can choose from the most simple arithmetic mean to the amean square or geometric mean. Among the methods for data smoothing suggested by the SESAME project can be chosen: Konno & Ohmachi, Triangular constant and Triangular proportional. The user can choose the time windows to include or exclude with a simple checkmark, seeing in real time the changes made. The input data can be automatically filtered. Displaying Data All results are displayed in customizable charts.