YouTube: How to present embed video with sound muted

Question

I\'m trying to embed a video with the sound muted but I can not figure out how it make it work.

Currently I\'m using this but doesn\'t work:

Answer 1

was also looking for a solution to this but I wasn't including via iframe, mine was linked to images/video.mp4 - found this https://www.w3schools.com/tags/att_video_muted.asp - and I simply added < video controls muted > (CSS/HTML 5 solution), but no JS required for me...