Figure 2
Spectrograms of mother and infant calls: (A) mother trill call (B) infant vocal streams with simple-modulated syllables, (C) infant vocal streams with multi-modulated syllables and (D) infant proto-trill.
Figure 2 | Scientific Reports
Spectrograms of mother and infant calls: (A) mother trill call (B) infant vocal streams with simple-modulated syllables, (C) infant vocal streams with multi-modulated syllables and (D) infant proto-trill.
