Real-Time Audio-Visual Analysis for Multiperson Videoconferencing

Figure 18

Results of a MUSHRA listening test comparing DirAC (Dirac) against a sequence of directional filtering, SAOC (StrfFwd) and efficient DirAC-to-SAOC transcoding (Efficient). A M/S stereo signal served as a reference (HidRef), while a monodownmix represented the lower anchor (LowAnchor).