Fig. 7. Comparison of the waveform and frequency spectrum of a typical song pulse with those of free vibrations of the left and right wings of Teleogryllus oceanicus. (A) Oscillogram of a pulse from a chirp of the song. (B) Oscillograms of the sound recorded from free vibrations of the left (red) and right (green) wings driven by 12.5-ms duration tone-bursts at their resonant frequencies. In A and B, the quality factor (Q) of the exponential decay of the vibrations is shown. (C) Frequency–energy spectra of the song pulse shown in A (black) and of the free vibrations of the left (red) and right (green) wing.

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