Table 4 Overview of parameters used and their values per call segment (mean+(sd))
Acoustic parameters | Digging | Whole call Moving | Searching | |
|---|---|---|---|---|
Duration | (s) | 0.05 ± (0.02) | 0.12 ± (0.04) | 0.09 ± (0.04) |
Bandwidth | (mean Hz) | 1,472 ± (428) | 1,526 ± (378) | 1,439 ± (382) |
F0 | (mean Hz) | 263 ± (100) | 467 ± (89) | 380 ± (110) |
Onset |  | 20 ± (150) | -456 ± (1,752) | -205 ± (1,020) |
Offset |  | -133 ± (814) | 204 ± (1,694) | -184 ± (1,781) |
Max freq. | (Hz) | 1,587 ± (427) | 1,675 ± (373) | 1,575 ± (375) |
Min. freq. | (Hz) | 114 ± (31) | 149 ± (55) | 135 ± (43) |
Peak frequency | (mean Hz) | 370 ± (167) | 490 ± (123) | 404 ± (106) |
Quartile 25% | (mean Hz) | 430 ± (74) | 525 ± (82) | 469 ± (73) |
Quartile 50% | (mean Hz) | 753 ± (96) | 918 ± (213) | 846 ± (199) |
Quartile 75% | (mean Hz) | 1,426 ± (539) | 2,730 ± (1,748) | 2,217 ± (1,615) |
Quartile 25% | (max Hz) | 454 ± (77) | 533 ± (77) | 481 ± (78) |
Quartile 50% | (max Hz) | 802 ± (123) | 942 ± (184) | 898 ± (240) |
Quartile 75% | (max Hz) | 1,803 ± (1,033) | 2,734 ± (1,745) | 2,507 ± (1,738) |
| Â | Â | Digging | Initial noisy segment Moving | Searching |
Duration | (s) | 0.04 ± (0.01) | 0.03 ± (0.01) | 0.03 ± (0.01) |
Bandwidth | (mean Hz) | 1,534 ± (457) | 1,542 ± (473) | 1,534 ± (426) |
F0 | (mean Hz) | 225 ± (94) | 249 ± (138) | 218 ± (92) |
Onset |  | 45 ± (138) | 127 ± (963) | 44 ± (186) |
Offset |  | -46 ± (129) | -146 ± (951) | -79 ± (713) |
Max freq. | (Hz) | 1,646 ± (455) | 1,654 ± (470) | 1,650 ± (417) |
Min. freq. | (Hz) | 112 ± (26) | 112 ± (28) | 116 ± (30) |
Peak frequency | (mean Hz) | 380 ± (186) | 378 ± (195) | 363 ± (178) |
Quartile 25% | (mean Hz) | 439 ± (74) | 473 ± (90) | 450 ± (79) |
Quartile 50% | (mean Hz) | 754 ± (92) | 838 ± (163) | 795 ± (110) |
Quartile 75% | (mean Hz) | 1,329 ± (387) | 2,300 ± (1,744 | 1,787 ± (1,250 |
Quartile 25% | (max Hz) | 465 ± (77) | 497 ± (96) | 473 ± (83) |
Quartile 50% | (max Hz) | 797.3 ± (100) | 914 ± (270) | 849 ± (157) |
Quartile 75% | (max Hz) | 1,654 ± (865) | 2,847 ± (1,997) | 2,234 ± (1,612) |
| Â | Â | Digging | Harmonic segment Moving | Searching |
Duration | (s) | 0.03 ± (0.02) | 0.08 ± (0.04) | 0.06 ± (0.03) |
Bandwidth | (mean Hz) | 1,185 ± (405) | 1,307 ± (394) | 1,283 ± (474) |
F0 | (mean Hz) | 350 ± (70) | 472 ± (83) | 410 ± (82) |
Onset |  | -10 ± (59) | -83.0 ± (1,444) | -6 ± (789) |
Offset |  | -177 ± (1,294) | -19 ± (1,134) | -176.4 ± (1,284) |
Max freq. | (Hz) | 1,343 ± (408) | 1,572 ± (390) | 1,513 ± (463) |
Min. freq. | (Hz) | 158 ± (83) | 264 ± (93) | 230 ± (97) |
Peak frequency | (mean Hz) | 350 ± (88) | 485 ± (115) | 409 ± (84) |
Quartile 25% | (mean Hz) | 414 ± (76) | 536 ± (89) | 471 ± (81) |
Quartile 50% | (mean Hz) | 769 ± (316) | 967 ± (285) | 895 ± (301) |
Quartile 75% | (mean Hz) | 2,346 ± (1,514) | 2,861 ± (1,927) | 2,784 ± (2,037) |
Quartile 25% | (max Hz) | 419 ± (76) | 546 ± (91) | 491 ± (98) |
Quartile 50% | (max Hz) | 802 ± (280) | 976 ± (210) | 940 ± (317) |
Quartile 75% | (max Hz) | 2,505 ± (1,598) | 2,797.6 ± (1,821) | 2,801 ± (1,956) |