Interactive Matlab software for the analysis of seismic volcanic signals

The computer program presented in this note applies methods commonly used in volcano seismology to the analysis of seismic data. It is complementary to the classic seismological software packages used to process tectonic earthquake seismograms. The program's six user-friendly interfaces provide a large set of tools for reading data in many different formats, for carrying out spectral analysis, autoregressive modelling and deconvolution, for calculating time–frequency representations and Real-time Seismic Amplitude Measurement (RSAM)-type time series, and for detecting volcanic tremors and discrete events in long-duration records. A separate version of the program facilitates signal classification when preparing training databases for automatic recognition systems.