![]() ![]() ![]() ![]() For graphical comparison of song patterns we are providing oscillograms, spectrograms - (also called sonograms or sonagrams) what means a 3-dimensional presentation of sound intensity in a frequency versus time plain. On our pages we prepared samples of songs for comparison in MP4 format reformated through the VPO (Virtual publishing office) software into FLV files (shown by Flash player). Oscilograms, spectrograms (sonagrams) and spectra Oscillogram (below) and spectrogram (sonagram) of the calling song of Euboeana castaneivaga, produced by Amadeus Pro software. Similarly, males of some species use wing clicking as additional sound producing mechanism. Nevertheless, females of some species can answer to the courtship signals of males by short wing clicks. As it is well known, in singing cicadas only males have characteristic sound producing organs - tymbals and are able to produce loud and species specific sound signals. In addition to this, one can recognize the hidden, morphologically inconspicuous species by analyzing and comparing their songs. Purpose and Content of this siteÄuring last decades it became evident, that the song patterns of singing cicadas are very species specific and enable us to detect a presence of most species in a habitat without seeing and collecting them, just by recording and analyzing their acoustic emissions. Tettigetta carayoni - new song descriptionĪ description of the acoustic signals of Tettigetta carayoni from Crete (Kriti) has been published (Trilar T. ![]()
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