Tu veux avoir le son des films sur ta TV et les autres sons sur les HP du PC?
Si oui tu peux essayer ça, je n'est pas testé mais logiquement ça fonctionne:
If you use windows media player for watching the video its very easy.
1. open windows media player
2. right click, click tools, then options
3. click devices tab
4. click speakers, then properties
5. select audio device (select HDMI output)
6. click ok, then ok again.
All sounds through windows media player will now be played through the hdmi output and all other sounds from vlc media player, youtube, etc. will continue to play through the pc speakers.