How does Youku APP turn on double-speed playback when watching the trumpeter in situ?
Open the application
Open Youku APP and enter the search bar.
Turn on the trumpeter and take your positions.
In the search field, search for the trumpeter in position, and then click Open Trumpeter in Position.
Open video settings
On the playback page, click on the upper right corner to open the video settings.
Turn on dual-speed playback
In TV settings, click Double Speed Play, and then select the double speed you want to play. That's it.