> he tends to talk slooooowly `mplayer -af scaletempo` and then pressing ] to increase the speed of the video, without altering the pitch of the sound, was my

> he tends to talk slooooowly `mplayer -af scaletempo` and then pressing ] to increase the speed of the video, without altering the pitch of the sound, was my solution. (And I hear also the Coursera player lets you to change the video speed.)