"A sound which may consist of one or more syllables or pulses and which is normally heard by the human ear as a unitary event. Usually applied to the songs of crickets and related insects." [1]

"as equated to one movement (= Silbe, G.), Broughton, now abandoned and deprecated as over-restriced." [2]

"Preferred unitary dictionary sense, as first parameter of analysis: the shortest unitary rhythm element of a soun emission that can readily be distinguished as such by the human ear." bib]57890[/bib]

The BioAcoustica preference is to use echeme.


  1. Ewing AW. Arthropod Bioacoustics: Neurobiology and Behaviour. Ithaca, New York: Comstock; 1989.
  2. Broughton WB. Glossarial Index. Teoksessa: Acoustic Behavior of Animals. Acoustic Behavior of Animals. Elsevier; 1963.
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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith