Auditory masking in killer whales (Orcinus orca): Critical ratios for tonal signals in Gaussian noise.
J Acoust Soc Am
; 149(3): 2109, 2021 03.
Article
em En
| MEDLINE
| ID: mdl-33810769
ABSTRACT
Masked detection thresholds were measured for two killer whales (Orcinus orca) using a psychoacoustic, adaptive-staircase procedure. Noise bands were 1-octave wide continuous Gaussian noise. Tonal signals extended between 500 Hz and 80 kHz. Resulting critical ratios increased with the signal frequency from 15 dB at 500 Hz up to 32 dB at 80 kHz. Critical ratios for killer whales were similar to those of other odontocetes despite considerable differences in size, hearing morphology, and hearing sensitivity between species.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Orca
Limite:
Animals
Idioma:
En
Revista:
J Acoust Soc Am
Ano de publicação:
2021
Tipo de documento:
Article