Earthquake Software for Signal Processing of Strong-Motion data

SeismoSignal constitutes an easy and efficient way for signal processing of strong-motion data, featuring a user-friendly visual interface and being capable of deriving a number of strong-motion parameters often required by engineer seismologists and earthquake engineers.

The program is able to read accelerograms saved in different text file formats, which may then be filtered and baseline-corrected. Polynomials of up to the 3rd order may be employed for the latter, whilst three different digital filter types are available, all of which capable of carrying out, causal or acausal, highpass, lowpass, bandpass and bandstop filtering.

  • Elastic response spectra and pseudo spectra

  • Constant-ductility inelastic response spectra

  • Arias Intensity (Ia)

  • Root-mean-square (RMS) of acceleration, velocity and displacement

  • Effective design acceleration (EDA)

  • Acceleration (ASI) and velocity (VSI) spectrum intensity

  • Husid and energy flux plots

  • Number of effective cycles

  • Maximum incremental velocity (MIV)

  • Average spectral acceleration (Sa,avg)

  • Damage index

  • Overdamped response spectrum

  • Fourier and Power spectra,computed by means of Fast Fourier Transformation – FFT

  • Cumulative Absolute Velocity (CAV) and Specific Energy Density (SED)

  • Characteristic Intensity (Ic)

  • Housner Intensity

  • Sustained maximum acceleration (SMA) and velocity (SMV)

  • Predominant (Tp) and mean (Tm) periods

  • Bracketed, uniform, significant and effective durations

  • Impulsivity index (IP Index)

Completely visual interface. No input or configuration files, programming scripts or any other time-consuming and complex text editing requirements.

Due to its full integration with the Windows environment, SeismoSignal allows for numerical and graphical results to be copied to any Windows application (e.g. MS Excel, MS Word, etc.), noting that the plots characteristics can be fully customised from within the program itself.


Try our Earthquake Engineering Software Solutions for free by downloading a one month Trial Version*

Get a Commercial License and unleash the full potential of Seismosoft software and access to premium technical support.

Buy 2-5 SeismoSignal Licenses and get 25% discount or a 35% discount for 6 or more licenses!

Take advantage of our Bundle offer. Get 25% discount for the SeismoSignal and SeismoSpect Bundle!

Licenses for Academic Use & Discounts

We offer Academic Versions* with no time limitation for Academic Use to users who are currently enrolled with an academic/research institution. If you are interested in receiving an Academic License, please request it by using the registration module at the start-up of the programs.

Students, Academic Staff and/or Universities may benefit from a 10% discount to all full Commercial versions of Seismosoft products and product bundles.

* In Academic/Trial Version, baseline correction and filtering is not allowed within the program, a maximum period equal to 4.00sec and a minimum period step equal to 0.05sec are allowed for spectra.