问题
This question is basically the same as this one which has a solution for HLTML5 videos, except that changing the chrome://flags to set gesture requirement for media playback to disabled has no influence on a YouTube embedded player.
I have built a webapp I use to learn music, and loop specific parts of Youtube music videos to learn how to play the song. Here is an example. This works fine on a computer, but using Chrome (59) on Android (7.1.1) I have to tap the video each time it starts again to put the sound back on. Not handy when trying to use my hands to learn playing the music ;)
The code I'm using to embed the player and interact via Javascript can be found here.
来源：https://stackoverflow.com/questions/45264838/youtube-embed-how-to-enable-non-muted-autoplay-in-chrome-for-android