This work presents a novel two-step algorithm to estimate the
orientation of speakers in a smart-room environment equipped
with microphone arrays. First the position of the speaker is
estimated by the SRP-PHAT algorithm, and the time delay of
arrival for each microphone pair with respect to the detected
position is computed. In the second step, the value of the cross-
correlation at the estimated time delay is used as the fundamen-
tal characteristic from where to derive the speaker orientation. The proposed method performs consistently better than other state-of-the-art acoustic techniques with a purposely recorded database and the CLEAR head pose database.Peer ReviewedPostprint (author’s final draft
