Youtube and virtual audio cable


I have two questions;
1) whether power can listen to music from youtube via a link?
2) how to capture sound with MOC by means of virtual audio cable?
When I set ALSA or PulseAudio in teamspeak 3, i see errors, because I need virtual audio cable.
if anyone knows what might not work well let him write.

Ad. 1. No, at least not directly. However if you download the video using some downloader like youtube-dl MOC should be able to open that file (given a reasonable version of ffmpeg plugin is installed).

I installed this plugin yesterday