The following description of the song of hylodroma is based on Krabbe and Schulenberg (2003). The song has a duration of 4 to 6 (rarely, 7) seconds, and is repeated at intervals of 5 to 15 seconds. It consists of a rolling series of notes delivered at 0.6–0.9 kHz, evenly paced, with 16–18 notes per second. The song gradually increases in volume and pitch (up to around 0.1 kHz). Frequently the song ends with a sudden rise in pitch at very end. Overall, the song is extremely similar to that of Undulated Antpitta (G. squamigera), but is slightly faster in pace.
For a representative audio recording with sonogram, see audio
The song of nominate gigantea is usually longer than that of hylodroma (around 8 s) and is slightly faster (19–20 notes/s).