Fix YouTube Mono (One Ear) Audio
A Greasemonkey/Tampermonkey script to down-mix YouTube videos to mono
You may have had the annoyance of trying to watch a YouTube video with only one ear because the audio was recorded as mono but exported to YouTube in stereo. I too was frustrated with this issue tonight so I wrote a quick script to remedy it. It can be used by Tampermonkey (Chrome) and Greasemonkey (Firefox).