YouTube: How to present embed video with sound mut

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:

<iframe src="https://www.youtube.com/embed/uNRGWVJ10gQ?rel=0&amp;autoplay=1" width="560" height="315" frameborder="0" allowfullscreen></iframe>

Any of you knows how can I make this work ?

Answer 1

<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/ObHKvS2qSp8?list=PLF8tTShmRC6uppiZ_v-Xj-E1EtR3QCTox&autoplay=1&controls=1&loop=1&mute=1" frameborder="0" allowfullscreen></iframe>



<iframe width="560" height="315" src="https://www.youtube.com/embed/ObHKvS2qSp8?list=PLF8tTShmRC6uppiZ_v-Xj-E1EtR3QCTox&autoplay=1&controls=1&loop=1&mute=1" frameborder="0" allowfullscreen></iframe>