A few problems along the way.
After asking anyone and everyone I know if they have any sound proof headphones there was a word I was getting used to hearing;
‘No.’
It appeared that getting phones that block out sound completely was proving to be difficult, so I decided to do a little DIY. After finding some headphones that muffle sound I used cotton wool to block out the sound even more. This seemed to have worked, until I got to a different location and watched the same video at the same volume. After trying a few other way of blocking out the sound I wasn’t having any luck and short from buying some professional sound blocking headphone from online for a lot of money there wasn’t much else I could do.
It was time to start looking at other ideas as I decided that if the audience could even hear the sound a little bit it would still defeat the object of my performance. I started to look into a different area of performing that I hadn’t experienced very much; performance art.