Figure 3From: Ontogenetic development of auditory sensitivity and sound production in the squeaker catfish Synodontis schoutedeniSonagram and oscillogram of stridulation sounds. Sonagram (top) and oscillogram (below) of adduction sounds (left) and abduction sounds (right) of representatives of group XXS (A) and group XL (B). Sampling frequency 44.1 kHz, filter bandwidth 650 Hz for XXS and 600 Hz for XL, 75% overlap, Hanning window.Back to article page