Fig. 3.

Relationship between envelope shifts in time and in phase. (A), The correlation of a sinusoidal oscillation at 4 Hz shifted by different delays and phases shows that the two shifts are dependent. In particular, a temporal lag can be compensated by a certain phase shift and vice versa. (B). When the speech envelope is shifted by different lags and phases, the obtained signals are only significantly correlated for latency shifts between −100 ms and 100 ms. In contrast, shifts by smaller or larger temporal delays lead to independent signals.