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Display of the Wave

  • Jérôme Sueur
Part of the Use R! book series (USE R)

Abstract

Sound must be displayed so that it can be explored and described. The most intuitive way to visualize sound is to build a time × amplitude plot. Several options to produce an oscillogram are given, so that high-level graphics including color tuning, text annotations, and image overlays can be obtained. The computation and display of the absolute and analytic amplitude envelopes are also explained. The key principle of a window sliding along the sound used for smoothing or discretization of the waveform is also detailed.

Audio files:tico.wav

References

  1. Mbu Nyamsi RG, Aubin T, Bremond JC (1994) On the extraction of some time dependent parameters of an acoustic signal by means of the analytic signal concept. Its application to animal sound study. Bioacoustics 5:187–203Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Jérôme Sueur
    • 1
  1. 1.Muséum National d’Histoire naturelleParisFrance

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