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Table 3 Spectral characteristics of PS1 calls from five belugas

From: Individuality embedded in the isolation calls of captive beluga whales (Delphinapterus leucas)

ID H T G N M
Number 16 97 20 21 33
Peak freq. (kHz) 3rd 109 29 113 109 115
Middle 113 29 117 107 117
3rd from last 109 29 115 109 117
10 dB BW (kHz) 3rd 133 [14–147] 113 [12–125] 72 [76–148] 88 [70–158] 72 [80–152]
Middle 126 [22–148] 111 [12–123] 70 [78–148] 82 [72–154] 64 [86–150]
3rd from last 119 [22–141] 74 [12–86] 72 [76–148] 88 [68–156] 64 [82–146]
  1. In the frequency range 11–170 kHz, peak frequency and the 10 dB BW of averaged power spectra are represented for each of the three pulses (the third pulse, the middle pulse, and the third pulse from the last) out of those composing PS1. Values in brackets of the 10 dB BW represent the lower and upper frequencies of the 10 dB BW