How can I change playback speed of mpv video player?

I love mpv player for its modern minimalist look, easy moving along a video simply with mouse scroll and robust rendering of .mp4 videos.

However, I could not figure out how to change the playback speed as I can do easily in VLC's playback menu. I simply can not see any GUI option to do so. Nor could I find a relevant configuration trick in the wiki.

So I appreciate your hints if there is a hidden button or a configuration tweak to define a shortcut key to do so. I'm using mpv on Ubuntu 18.04.

Solution 1:

See the manual (or man mpv):

Keyboard Control

...

[ and ]
       Decrease/increase current playback speed by 10%.

{ and }
       Halve/double current playback speed.

BACKSPACE
       Reset playback speed to normal.