A system and process for highlighting the current speaker on an on-going
basis in each frame of a low frame-rate video of an event having multiple
people in attendance, such as a video teleconference, is presented. In
general, this is accomplished by periodically identifying an attendee
that is currently speaking at a rate substantially faster than the video
frame rate, and for each frame of the video updating the frame to
highlight the attendee currently speaking. More particularly, an
audio/visual (A/V) source provides separate video, audio, and current
speaker data streams to a client computing device. The client device then
uses these data streams to render and display the video and to
periodically update the frame being displayed to highlight the current
speaker depicted therein.