Well here's a case that perfectly matches what I wanted to do. I currently have a PC screen with an HDMI output without speaker, suddenly to connect a Playstation 3 HDMI and have sound, but it was not won through the RCA connectors ... Now I can plug my HDMI console and sound with optical output for output on either my speakers, or directly on my PC and wireless headset. This still need to install the drivers on the website of Terratec but now everything is fine, I am ready for the PS4 or Xbox One without buying a television screen!