Figure 4
From: Call combination patterns in Icelandic killer whales (Orcinus orca)
Example spectrogram of the most common call combination from cluster B recorded from Icelandic killer whales (Orcinus orca). The combination was of I63 and I72.3 and was often repeated. Recording sampled at 240 kHz. Spectrogram parameters: Hann window; 87.5% overlap; FFT size: 4,096; frequency resolution: 58.62 Hz; time resolution: 2.13 ms. Corresponding sound file available in Supplementary Audio A7.
