Data Services Products: SeisSound

Associated Data Files



SeisSound is an audio/video-based data product that illustrates the temporal evolution of the frequency and amplitude content of a seismogram. Conveying the seismograms frequency content both visually and audibly produces a better understanding of the spectral content.

This data product conveys the data in four different ways:

  1. an image of the original seismogram
  2. an image of a filtered version of the seismogram
  3. an image of the spectrogram of the filtered trace
  4. an audio playback of the seismic signal that is time-compressed and amplitude-normalized so that the sound is audible for human ears (roughly 20 Hz – 20 kHz)

Both the spectrogram and audio file are created after applying a 0.5 Hz high-pass filter. The audio also includes a modulated signal that represents the low-frequency portion of the seismogram that is not audible at the selected speed-up factor. To hear the full range of sounds we recommend listening to these data products with earbuds or good speakers.

For more information on SeisSound visit the SeisSound product page”.


If you use SeisSound data in publications please cite:

  • Kilb, D., Z. Peng, D. Simpson, A. Michael, M. Fisher and D. Rohrlick, ‘Listen, Watch, Learn: SeisSound Video products’, Seis. Res. Lett., doi:10.1785/gssrl.83.2.281, 2012. LINK:
  • Trabant, C., A. R. Hutko, M. Bahavar, R. Karstens, T. Ahern and R. Aster (2012), Data products at the IRIS DMC: stepping-stones for research and other application, Seismological Research Letters, 83(6), 846:854. doi: 10.1785/0220120032

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