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Fig. 1 | BMC Research Notes

Fig. 1

From: Hiss and snort call types of wild-living giraffes Giraffa camelopardalis: acoustic structure and context

Fig. 1

Two vigilance-related call types in the giraffe Giraffa camelopardalis. The spectrogram (below) and waveform (above) illustrate (A1) hiss of an adult giraffe of unspecified sex in Namibia; A2 hiss of a subadult male giraffe in Kenya; B1 snort of an adult giraffe of unspecified sex in Namibia; B2 snort of an adult female in Kenya. In the waveform of the snorts, the low-frequency pulsation is visible as amplitude peaks. The spectrogram was created with 24 kHz sampling frequency, Hamming window, FFT 1024 points, frame 50% and overlap 93.75%. Original wav-files are available in the electronic supporting information (Additional file 1: Audio S1)

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